1
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Liu W, Xing Y, Yan D, Kong W, Shen K. Nickel-catalyzed electrophiles-controlled enantioselective reductive arylative cyclization and enantiospecific reductive alkylative cyclization of 1,6-enynes. Nat Commun 2024; 15:1787. [PMID: 38413585 PMCID: PMC10899222 DOI: 10.1038/s41467-024-45617-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 01/30/2024] [Indexed: 02/29/2024] Open
Abstract
Transition metal-catalyzed asymmetric cyclization of 1,6-enynes is a powerful tool for the construction of chiral nitrogen-containing heterocycles. Despite notable achievements, these transformations have been largely limited to the use of aryl or alkenyl metal reagents, and stereoselective or stereospecific alkylative cyclization of 1,6-enynes remains unexploited. Herein, we report Ni-catalyzed enantioselective reductive anti-arylative cyclization of 1,6-enynes with aryl iodides, providing enantioenriched six-membered carbo- and heterocycles in good yields with excellent enantioselectivities. Additionally, we have realized Ni-catalyzed enantiospecific reductive cis-alkylative cyclization of 1,6-enynes with alkyl bromides, furnishing chiral five-membered heterocycles with high regioselectivity and stereochemical fidelity. Mechanistic studies reveal that the arylative cyclization of 1,6-enynes is initiated by the oxidative addition of Ni(0) to aryl halides and the alkylative cyclization is triggered by the oxidative addition of Ni(0) to allylic acetates. The utility of this strategy is further demonstrated in the enantioselective synthesis of the antiepileptic drug Brivaracetam.
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Affiliation(s)
- Wenfeng Liu
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, China
| | - Yunxin Xing
- Department of Radiology, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Denghong Yan
- Department of Radiology, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Wangqing Kong
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, China.
| | - Kun Shen
- Department of Radiology, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China.
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2
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Wu Y, Ao Y, Li Z, Liu C, Zhao J, Gao W, Li X, Wang H, Liu Y, Liu Y. Modulation of metal species as control point for Ni-catalyzed stereodivergent semihydrogenation of alkynes with water. Nat Commun 2023; 14:1655. [PMID: 36964163 PMCID: PMC10039052 DOI: 10.1038/s41467-023-37022-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 02/23/2023] [Indexed: 03/26/2023] Open
Abstract
A base-assisted metal species modulation mechanism enables Ni-catalyzed stereodivergent transfer semihydrogenation of alkynes with water, delivering both olefinic isomers smoothly using cheap and nontoxic catalysts and additives. Different from most precedents, in which E-alkenes derive from the isomerization of Z-alkene products, the isomers were formed in orthogonal catalytic pathways. Mechanistic studies suggest base as a key early element in modulation of the reaction pathways: by adding different bases, nickel species with disparate valence states could be accessed to initiate two catalytic cycles toward different stereoisomers. The practicability of the method is showcased with nearly 70 examples, including internal and terminal triple bonds, enynes and diynes, affording semi-hydrogenated products in high yields and selectivity.
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Affiliation(s)
- Yuanqi Wu
- Jilin Provincial Key Laboratory of Carbon Fiber Development and Application, College of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, 130012, Changchun, PR China
| | - Yuhui Ao
- Jilin Provincial Key Laboratory of Carbon Fiber Development and Application, College of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, 130012, Changchun, PR China
| | - Zhiming Li
- Department of Chemistry, Fudan University, 200438, Shanghai, PR China.
| | - Chunhui Liu
- College of Chemical and Materials Engineering, Xuchang University, 461000, Xuchang, PR China
| | - Jinbo Zhao
- Jilin Provincial Key Laboratory of Carbon Fiber Development and Application, College of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, 130012, Changchun, PR China
| | - Wenyu Gao
- Jilin Provincial Key Laboratory of Carbon Fiber Development and Application, College of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, 130012, Changchun, PR China
| | - Xuemeng Li
- Jilin Provincial Key Laboratory of Carbon Fiber Development and Application, College of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, 130012, Changchun, PR China
| | - Hui Wang
- Jilin Provincial Key Laboratory of Carbon Fiber Development and Application, College of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, 130012, Changchun, PR China
| | - Yongsheng Liu
- Jilin Provincial Key Laboratory of Carbon Fiber Development and Application, College of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, 130012, Changchun, PR China
| | - Yu Liu
- Jilin Provincial Key Laboratory of Carbon Fiber Development and Application, College of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, 130012, Changchun, PR China.
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3
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Tsukamoto H, Ito K, Ueno T, Shiraishi M, Kondo Y, Doi T. Palladium(0)-Catalyzed Anti-Selective Addition-Cyclizations of Alkynyl Electrophiles. Chemistry 2023; 29:e202203068. [PMID: 36333971 PMCID: PMC10108115 DOI: 10.1002/chem.202203068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 10/31/2022] [Accepted: 10/31/2022] [Indexed: 11/08/2022]
Abstract
Palladium(0)/monophosphine complexes catalyze anti-selective alkylative, arylative, and alkynylative cyclizations of alkynyl electrophiles with organometallic reagents. The remarkable anti-selectivity results from novel oxidative addition, that is, the nucleophilic attack of electron-rich palladium(0) on the electrophile across the alkyne followed by transmetalation and reductive elimination ("anti-Wacker"-type cyclization). With regard to 5-alkynals, triphenylphosphine (PPh3 )-ligated palladium(0) catalyzes the cyclization of terminal alkynes and conjugated alkenyl- or alkynyl-substituted ones to afford 2-cyclohexen-1-ol and 2-alkylidene-cyclopentanol derivatives, respectively. For 6-alkyl- or 6-aryl-5-alkynals, the cyclization does not proceed with the palladium/PPh3 catalyst; however, it does proceed with palladium/tricyclohexylphosphine (PCy3 ), to yield the former products predominantly. Remarkably, the latter catalyst completely switches the regioselectivity in the cyclization of the conjugated diyne-aldehydes. Notably, palladium/PPh3 -catalyzed cyclizations also proceed with other organometallics or even without them.
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Affiliation(s)
- Hirokazu Tsukamoto
- Department of Pharmaceutical Sciences, Yokohama University of Pharmacy 601 Matano-cho, Totsuka-ku, Yokohama, 245-0066, Japan.,Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Kazuya Ito
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Tatsuhiko Ueno
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Mitsugu Shiraishi
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Yoshinori Kondo
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Takayuki Doi
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
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4
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Dhara HN, Rakshit A, Alam T, Sahoo AK, Patel BK. Visible-Light-Mediated Solvent-Switched Photosensitizer-Free Synthesis of Polyfunctionalized Quinolines and Pyridines. Org Lett 2023; 25:471-476. [PMID: 36637219 DOI: 10.1021/acs.orglett.2c04027] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A solvent (2,2,2-trifluoroethanol (TFE) vs ethyl alcohol (EtOH)) switched synthesis of quinolines and pyridines is illustrated from (E)-2-(1,3-diphenylallylidene)malononitriles via a Pd(II)-catalyzed photochemical process. The active catalyst [L2Pd(0)] generated serves as an exogenous photosensitizer. The process offers predominantly Z-alkenylated quinolines and pyridines in TFE and EtOH, respectively. Furthermore, large-scale synthesis and a few interesting post-synthetic modifications have been demonstrated.
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Affiliation(s)
- Hirendra Nath Dhara
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
| | - Amitava Rakshit
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
| | - Tipu Alam
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
| | - Ashish Kumar Sahoo
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
| | - Bhisma K Patel
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
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5
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Maurya RK, Bhukta S, Kishor K, Chatterjee R, Burra AG, Khatravath M, Dandela R. Recent progress towards transition-metal-catalyzed arylative cyclization/annulation reactions with boronic acids. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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6
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Tambe SD, Ka CH, Hwang HS, Bae J, Iqbal N, Cho EJ. Nickel‐Catalyzed Enantioselective Synthesis of 2,3,4‐Trisubstituted 3‐Pyrrolines. Angew Chem Int Ed Engl 2022; 61:e202203494. [DOI: 10.1002/anie.202203494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Shrikant D. Tambe
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu, Seoul 06974 Republic of Korea
| | - Cheol Hyeon Ka
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu, Seoul 06974 Republic of Korea
| | - Ho Seong Hwang
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu, Seoul 06974 Republic of Korea
| | - Jaehan Bae
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu, Seoul 06974 Republic of Korea
| | - Naeem Iqbal
- Department of Chemistry University of York Heslington, York YO10 5DD UK
| | - Eun Jin Cho
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu, Seoul 06974 Republic of Korea
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7
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Kralova P, Žáková K, Pospíšilová L, Soural M. Synthesis of 2,3‐Disubstituted Quinoline‐4‐carbonitriles via Truce–Smiles Rearrangement of Phenacyl‐4‐nitrobenzenesulfonamides. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Petra Kralova
- Palacky University Olomouc: Univerzita Palackeho v Olomouci Organic chemistry CZECH REPUBLIC
| | - Kateřina Žáková
- Palacky University Olomouc: Univerzita Palackeho v Olomouci Organic chemistry CZECH REPUBLIC
| | - Lenka Pospíšilová
- Palacky University Olomouc: Univerzita Palackeho v Olomouci Organic chemistry CZECH REPUBLIC
| | - Miroslav Soural
- Palacky University Olomouc Organic Chemistry 17.listopadu 12 77146 Olomouc CZECH REPUBLIC
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8
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Choi H, Lyu X, Kim D, Seo S, Chang S. Endo-Selective Intramolecular Alkyne Hydroamidation Enabled by NiH Catalysis Incorporating Alkenylnickel Isomerization. J Am Chem Soc 2022; 144:10064-10074. [PMID: 35621341 DOI: 10.1021/jacs.2c03777] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Intramolecular alkyne hydroamidation represents a straightforward approach for the access to synthetically valuable cyclic enamides. Despite some advances made in this realm, the ability to attain a precise regiocontrol still remains challenging, especially for endo cyclization that leads to six-membered and larger azacyclic rings. Herein, we report a NiH-catalyzed intramolecular hydroamidation of alkynyl dioxazolones that allows for an excellent endo selectivity, thus affording a range of six- to eight-membered endocyclic enamides with a broad scope. Mechanistic investigations revealed that Ni(I) catalysis is operative in the current system, proceeding via regioselective syn-hydronickelation, alkenylnickel E/Z isomerization, and Ni-centered inner-sphere nitrenoid transfer. In particular, the key alkenylnickel isomerization step, which previously lacked mechanistic understandings, was found to take place through the η2-vinyl transition state. The synthetic value of this protocol was demonstrated by diastereoselective modifications of the obtained endocyclic enamides to highly functionalized δ-lactam scaffolds.
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Affiliation(s)
- Hoonchul Choi
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - Xiang Lyu
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - Dongwook Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - Sangwon Seo
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - Sukbok Chang
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
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9
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Tambe SD, Ka CH, Hwang HS, Bae J, Iqbal N, Cho EJ. Nickel‐Catalyzed Enantioselective Synthesis of 2,3,4‐Trisubstituted 3‐Pyrrolines. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202203494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Shrikant D. Tambe
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu, Seoul 06974 Republic of Korea
| | - Cheol Hyeon Ka
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu, Seoul 06974 Republic of Korea
| | - Ho Seong Hwang
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu, Seoul 06974 Republic of Korea
| | - Jaehan Bae
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu, Seoul 06974 Republic of Korea
| | - Naeem Iqbal
- Department of Chemistry University of York Heslington, York YO10 5DD UK
| | - Eun Jin Cho
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu, Seoul 06974 Republic of Korea
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10
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Zhan YZ, Meng H, Shu W. Rapid access to t-butylalkylated olefins enabled by Ni-catalyzed intermolecular regio- and trans-selective cross-electrophile t-butylalkylation of alkynes. Chem Sci 2022; 13:4930-4935. [PMID: 35655892 PMCID: PMC9068203 DOI: 10.1039/d2sc00487a] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 03/28/2022] [Indexed: 12/14/2022] Open
Abstract
Among the carbo-difunctionalization of alkynes, the stereoselective dialkylation of alkynes is the most challenging transformation due to associated competitive side reactions and thus remains underdeveloped. Herein, we report the first Ni-catalyzed regio- and trans-selective cross-dialkylation of alkynes with two distinct alkyl bromides to afford olefins with two aliphatic substituents. The reductive conditions circumvent the use of organometallic reagents, enabling the cross-dialkylation process to occur at room temperature from two different alkyl bromides. This operationally simple protocol provides a straightforward and practical access to a wide range of stereodefined dialkylated olefins with broad functional group tolerance from easily available starting materials. A direct reductive cross-dialkylation of alkynes is achieved to afford trans-dialkylated olefins using two distinct alkyl bromides. The reaction undergoes with exclusive chemo-, regio- and stereoselectivity without the use of organometallic reagents.![]()
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Affiliation(s)
- Yi-Zhou Zhan
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology Shenzhen 518055 Guangdong P. R. China
| | - Huan Meng
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology Shenzhen 518055 Guangdong P. R. China
| | - Wei Shu
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology Shenzhen 518055 Guangdong P. R. China
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11
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Gillbard SM, Lam HW. Nickel-Catalyzed Arylative Cyclizations of Alkyne- and Allene-Tethered Electrophiles using Arylboron Reagents. Chemistry 2022; 28:e202104230. [PMID: 34986277 PMCID: PMC9302687 DOI: 10.1002/chem.202104230] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Indexed: 12/14/2022]
Abstract
The use of arylboron reagents in metal‐catalyzed domino addition–cyclization reactions is a well‐established strategy for the preparation of diverse, highly functionalized carbo‐ and heterocyclic products. Although rhodium‐ and palladium‐based catalysts have been commonly used for these reactions, more recent work has demonstrated nickel catalysis is also highly effective, in many cases offering unique reactivity and access to products that might otherwise not be readily available. This review gives an overview of nickel‐catalyzed arylative cyclizations of alkyne‐ and allene‐tethered electrophiles using arylboron reagents. The scope of the reactions is discussed in detail, and general mechanistic concepts underpinning the processes are described.
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Affiliation(s)
- Simone M Gillbard
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham, Jubilee Campus, Triumph Road, NG7 2TU, Nottingham, UK.,School of Chemistry, University of Nottingham, University Park, NG7 2RD, Nottingham, UK
| | - Hon Wai Lam
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham, Jubilee Campus, Triumph Road, NG7 2TU, Nottingham, UK.,School of Chemistry, University of Nottingham, University Park, NG7 2RD, Nottingham, UK
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12
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Ren Y, An Z, Zhao P, Li M, Yan R. Iron-catalyzed one-pot cyclization and amination of 2-alkynylthioanisoles using nitrosobenzenes as the amine source. Org Chem Front 2022. [DOI: 10.1039/d2qo00535b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A direct strategy for the synthesis of 3-phenylaminobenzothiophene via iron-catalyzed cyclization of 2-alkynylthioanisoles and nitrosoarenes is presented in this work.
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Affiliation(s)
- Yi Ren
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, China
| | - Zhenyu An
- College of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Pengbo Zhao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, China
| | - Mengxing Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, China
| | - Rulong Yan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, China
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13
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Athira M, Smile SS, Shanmugam P. BF 3·OEt 2 catalyzed synthesis of functionalized 9-fluorene-9-ylidene appended quinazolin-4-ones. NEW J CHEM 2022. [DOI: 10.1039/d1nj05379e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
An efficient method for the construction of the quinazolinone skeleton from the reaction of 9-(phenylethynyl)-9H-fluoren-9-ols with substituted 2-aminobenzamides catalyzed by boron trifluoride is achieved.
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Affiliation(s)
- Mohanakumaran Athira
- Organic and Bio-Organic Chemistry Division, CSIR-Central Leather Research Institute (CLRI), Adyar, Chennai – 600020, India
| | - Suresh Snoxma Smile
- Organic and Bio-Organic Chemistry Division, CSIR-Central Leather Research Institute (CLRI), Adyar, Chennai – 600020, India
| | - Ponnusamy Shanmugam
- Organic and Bio-Organic Chemistry Division, CSIR-Central Leather Research Institute (CLRI), Adyar, Chennai – 600020, India
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14
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Lin J, Liang G, Wu C, Tian X. Direct Synthesis of Napthalenes by Nickel‐Catalyzed Cascade Cyclization of
o
‐Vinyl Chlorobenzenes with Internal Alkynes. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101330] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Jin Lin
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou 511436 China
| | - Guanfeng Liang
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou 511436 China
| | - Chaoyi Wu
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou 511436 China
| | - Xu Tian
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou 511436 China
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15
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Soni JP, Kadagathur M, Shankaraiah N. Recent Updates on Azido‐reductive Cyclization Approaches: Syntheses of
aza
‐Heterocyclic Frameworks. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100621] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Jay Prakash Soni
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500037 India
| | - Manasa Kadagathur
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500037 India
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500037 India
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16
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Yang T, Nie ZW, Su MD, Li H, Luo WP, Liu Q, Guo CC. Unexpected Annulation between 2-Aminobenzyl Alcohols and Benzaldehydes in the Presence of DMSO: Regioselective Synthesis of Substituted Quinolines. J Org Chem 2021; 86:15228-15241. [PMID: 34632772 DOI: 10.1021/acs.joc.1c01850] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An unexpected annulation among 2-aminobenzyl alcohols, benzaldehydes, and DMSO to quinolines has been disclosed. For the reported annulation between 2-aminobenzyl alcohols and benzaldehydes, the change of the solvent from toluene to DMSO led to the change of the product from the diheteroatomic cyclic benzoxazines to monoheteroatomic cyclic quinolines. This annulation can be used to synthesize regioselectively different substituted quinolines by the choice of different 2-amino alcohols, aldehydes, and sulfoxides as substrates. Interestingly, introducing substituent groups to the α-position of sulfoxides resulted in the interchange of the positions between benzaldehydes and sulfoxides in the product quinolines. On the basis of the control experiments and literatures, a plausible mechanism for this annulation was proposed.
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Affiliation(s)
- Tonglin Yang
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Zhi-Wen Nie
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Miao-Dong Su
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Hui Li
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Wei-Ping Luo
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Qiang Liu
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Can-Cheng Guo
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
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17
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Hu X, Lv P, Zhang N, Liu Y. Synthesis of ortho-Diamino-Functionalized 1-Arylnaphthalenes through Nickel-Catalyzed Cyclization of Ynamide-Benzylnitriles with Organoboronic Acids. Org Lett 2021; 23:7949-7954. [PMID: 34553930 DOI: 10.1021/acs.orglett.1c02957] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A nickel-catalyzed highly regioselective addition/cyclization of ynamide-benzylnitriles with organoboronic acids has been developed. The reaction offers an attractive route for the construction of diamino-functionalized 1-arylnaphthalenes, which is difficult to synthesize by other methods. In addition, a wide range of functional groups are tolerated in this reaction.
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Affiliation(s)
- Xiaoping Hu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People's Republic of China
| | - Peizhuo Lv
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People's Republic of China
| | - Ninghui Zhang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People's Republic of China.,Department of Chemistry, Zhengzhou University, 100 Science Avenue, Zhengzhou, Henan Province 450001, People's Republic of China
| | - Yuanhong Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People's Republic of China
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18
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Corpas J, Mauleón P, Arrayás RG, Carretero JC. Transition-Metal-Catalyzed Functionalization of Alkynes with Organoboron Reagents: New Trends, Mechanistic Insights, and Applications. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01421] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Javier Corpas
- Department of Organic Chemistry, Faculty of Sciences, Universidad Autónoma de Madrid (UAM), Cantoblanco, 28049 Madrid, Spain
| | - Pablo Mauleón
- Department of Organic Chemistry, Faculty of Sciences, Universidad Autónoma de Madrid (UAM), Cantoblanco, 28049 Madrid, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid (UAM), Cantoblanco, 28049 Madrid, Spain
| | - Ramón Gómez Arrayás
- Department of Organic Chemistry, Faculty of Sciences, Universidad Autónoma de Madrid (UAM), Cantoblanco, 28049 Madrid, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid (UAM), Cantoblanco, 28049 Madrid, Spain
| | - Juan C. Carretero
- Department of Organic Chemistry, Faculty of Sciences, Universidad Autónoma de Madrid (UAM), Cantoblanco, 28049 Madrid, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid (UAM), Cantoblanco, 28049 Madrid, Spain
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19
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Gillbard SM, Green H, Argent SP, Lam HW. Enantioselective nickel-catalyzed anti-arylmetallative cyclizations onto acyclic electron-deficient alkenes. Chem Commun (Camb) 2021; 57:4436-4439. [PMID: 33949471 DOI: 10.1039/d1cc01166a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Enantioselective nickel-catalyzed reactions of (hetero)arylboronic acids or alkenylboronic acids with substrates containing an alkyne tethered to various acyclic electron-deficient alkenes are described.
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Affiliation(s)
- Simone M Gillbard
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham, Jubilee Campus, Triumph Road, Nottingham, NG7 2TU, UK. and School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Harley Green
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham, Jubilee Campus, Triumph Road, Nottingham, NG7 2TU, UK. and School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Stephen P Argent
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Hon Wai Lam
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham, Jubilee Campus, Triumph Road, Nottingham, NG7 2TU, UK. and School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
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20
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Green H, Argent SP, Lam HW. Enantioselective Nickel-Catalyzed anti-Arylmetallative Cyclizations onto Acyclic Ketones. Chemistry 2021; 27:5897-5900. [PMID: 33533065 PMCID: PMC8048927 DOI: 10.1002/chem.202100143] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Indexed: 12/13/2022]
Abstract
Domino reactions involving nickel-catalyzed additions of (hetero)arylboronic acids to alkynes, followed by cyclization of the alkenylnickel intermediates onto tethered acyclic ketones to give chiral tertiary-alcohol-containing products in high enantioselectivities, are described. The reversible E/Z isomerization of the alkenylnickel intermediates enables overall anti-arylmetallative cyclization to occur. The ring system of the products are substructures of certain diarylindolizidine alkaloids.
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Affiliation(s)
- Harley Green
- The GlaxoSmithKline Carbon Neutral Laboratories for, Sustainable ChemistryUniversity of NottinghamJubilee Campus, Triumph RoadNottinghamNG7 2TUUK
- School of ChemistryUniversity of NottinghamUniversity ParkNottinghamNG7 2RDUK
| | - Stephen P. Argent
- School of ChemistryUniversity of NottinghamUniversity ParkNottinghamNG7 2RDUK
| | - Hon Wai Lam
- The GlaxoSmithKline Carbon Neutral Laboratories for, Sustainable ChemistryUniversity of NottinghamJubilee Campus, Triumph RoadNottinghamNG7 2TUUK
- School of ChemistryUniversity of NottinghamUniversity ParkNottinghamNG7 2RDUK
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21
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Ali S, Khan AT. Copper(ii) triflate catalyzed three-component reaction for the synthesis of 2,3-diarylquinoline derivatives using aryl amines, aryl aldehydes and styrene oxides. Org Biomol Chem 2021; 19:3255-3262. [DOI: 10.1039/d1ob00125f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
An efficient and expedient synthetic protocol is reported for the synthesis of 2,3-diarylquinoline derivatives from readily available aryl amines, aryl aldehydes and styrene oxides using 10 mol% copper(ii) triflate by employing three-component reaction.
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Affiliation(s)
- Saghir Ali
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati-781039
- India
| | - Abu T. Khan
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati-781039
- India
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22
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Reddy CR, Srinivasu E, Sathish P, Subbarao M, Donthiri RR. One-Pot Arylative Benzannulation of 2-Carbonyl-3-propargyl Indoles with Boronic Acids Leading to Arylated Carbazoles. J Org Chem 2021; 86:1118-1132. [PMID: 33322899 DOI: 10.1021/acs.joc.0c02601] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Arylative annulation of 2-carbonyl-3-propargyl indoles with boronic acids under sequential palladium/triflic acid catalysis is described. The present strategy to provide di- and triaryl carbazoles in one pot involves benzannulation through difunctionalization of alkynes. The strategy showed a good substrate scope with respect to boronic acids as well as 2-carbonyl-3-propargyl indoles to afford the corresponding carbazoles in decent yields.
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Affiliation(s)
- Chada Raji Reddy
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ejjirotu Srinivasu
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Puppala Sathish
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Muppidi Subbarao
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ramachandra Reddy Donthiri
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India
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23
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Parameshwar M, Singam MKR, Nagireddy A, Nanubolu JB, Reddy MS. Regioselective benzannulation of allylic sulfur ylides with ynones: a rapid access to substituted thioanisoles. Chem Commun (Camb) 2020; 56:13457-13460. [PMID: 33047759 DOI: 10.1039/d0cc05436d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The efficiency and selectivity of annulation reactions are often difficult to control in the presence of multiple potential reactive centers, like in the case of allylic sulfur ylides (ASY). Here, we describe a novel base mediated [3+3] benzannulation of ASY and readily available alkynones, which accomplishes the regioselective formation of multisubstituted thioanisoles, highly sought after chemical scaffolds. A new reactivity pattern of ASY has been unearthed, where it acted as both a 3C component and sulfur source in benzannulation. Use of a widely available base, operational simplicity and broad substrate scope are the additional salient features of the conversion.
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Affiliation(s)
- Matam Parameshwar
- Department of OSPC, CSIR-Indian Institute of Chemical Technology, Habsiguda, Hyderabad 500007, India.
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24
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Börjesson M, Janssen-Müller D, Sahoo B, Duan Y, Wang X, Martin R. Remote sp2 C–H Carboxylation via Catalytic 1,4-Ni Migration with CO2. J Am Chem Soc 2020; 142:16234-16239. [DOI: 10.1021/jacs.0c08810] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Marino Börjesson
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Daniel Janssen-Müller
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Basudev Sahoo
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Yaya Duan
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Xueqiang Wang
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Ruben Martin
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
- ICREA, Passeig Lluís Companys 23, 08010 Barcelona, Spain
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25
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Zhou Z, Chen J, Chen H, Kong W. Stereoselective synthesis of pentasubstituted 1,3-dienes via Ni-catalyzed reductive coupling of unsymmetrical internal alkynes. Chem Sci 2020; 11:10204-10211. [PMID: 34094285 PMCID: PMC8162379 DOI: 10.1039/d0sc04173d] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The reductive coupling of alkynes represents a powerful strategy for the rapid synthesis of highly substituted 1,3-dienes. This method has the advantages of high atom and step economy, and readily available substrates. Unfortunately, the intermolecular coupling of unsymmetrical internal alkynes remains extremely challenging due to the difficulty in controlling self-dimerization and cross-coupling, as well as stereo- and regioselectivity. Previous reports are still limited to intramolecular processes or the use of stoichiometric amounts of metal catalyst. Herein, we report that nickel-catalyzed reductive coupling of two unsymmetrical internal alkynes can overcome the above-mentioned limitations by using a hemilabile directing group strategy to control the regioselectivity. A series of synthetically challenging penta-substituted 1,3-dienes are obtained in good yields with high regio- and enantioselectivity (mostly > 20/1 rr, >90% ee). The reductive coupling of alkynes represents a powerful strategy for the rapid synthesis of highly substituted 1,3-dienes.![]()
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Affiliation(s)
- Zhijun Zhou
- Institute for Advanced Studies (IAS), Wuhan University Wuhan Hubei 430072 P. R. China
| | - Jiachang Chen
- Institute for Advanced Studies (IAS), Wuhan University Wuhan Hubei 430072 P. R. China
| | - Herong Chen
- Institute for Advanced Studies (IAS), Wuhan University Wuhan Hubei 430072 P. R. China
| | - Wangqing Kong
- Institute for Advanced Studies (IAS), Wuhan University Wuhan Hubei 430072 P. R. China
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26
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Abstract
A new catalyst system for the antiarylative cyclization of alkynones and aryl halides through a reductive cross-coupling strategy is developed. The transformation proceeds smoothly in the absence of organometallic reagents and features high functional group tolerance. This method provides an effective platform to access a wide variety of synthetically useful endocyclic tetrasubstituted allylic alcohols in a stereoselective manner.
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Affiliation(s)
- Zhijun Zhou
- The Institute for Advanced Studies, Wuhan University, 299 Bayi Road, Wuchang District, Wuhan, Hubei 430072, P.R. China
| | - Wenfeng Liu
- The Institute for Advanced Studies, Wuhan University, 299 Bayi Road, Wuchang District, Wuhan, Hubei 430072, P.R. China
| | - Wangqing Kong
- The Institute for Advanced Studies, Wuhan University, 299 Bayi Road, Wuchang District, Wuhan, Hubei 430072, P.R. China
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27
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Corpas J, Mauleón P, Gómez Arrayás R, Carretero JC. anti-Hydroarylation of Activated Internal Alkynes: Merging Pd and Energy Transfer Catalysis. Org Lett 2020; 22:6473-6478. [PMID: 32806218 DOI: 10.1021/acs.orglett.0c02281] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A general catalytic anti-hydroarylation of electron-deficient internal alkynes compatible with both electron-poor and electron-rich aryl reagents is reported. This selectivity is achieved through a sequential syn-carbopalladation of the alkyne by an Ar-Pd species, followed by a tandem, Ir-photocatalyzed, counter-thermodynamic E → Z isomerization. The use of ortho-substituted boronic acids enables direct access to pharmaceutically relevant heterocyclic cores via a cascade process. Mechanistic insight into the involvement of Ar-Pd versus Pd-H as an active species is provided.
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Affiliation(s)
- Javier Corpas
- Department of Organic Chemistry, Universidad Autónoma de Madrid, c/Fco. Tomás y Valiente 7, Cantoblanco, 28049 Madrid, Spain
| | - Pablo Mauleón
- Department of Organic Chemistry, Universidad Autónoma de Madrid, c/Fco. Tomás y Valiente 7, Cantoblanco, 28049 Madrid, Spain.,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madridc/Fco. Tomás y Valiente 7, Cantoblanco, 28049 Madrid, Spain
| | - Ramón Gómez Arrayás
- Department of Organic Chemistry, Universidad Autónoma de Madrid, c/Fco. Tomás y Valiente 7, Cantoblanco, 28049 Madrid, Spain.,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madridc/Fco. Tomás y Valiente 7, Cantoblanco, 28049 Madrid, Spain
| | - Juan C Carretero
- Department of Organic Chemistry, Universidad Autónoma de Madrid, c/Fco. Tomás y Valiente 7, Cantoblanco, 28049 Madrid, Spain.,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madridc/Fco. Tomás y Valiente 7, Cantoblanco, 28049 Madrid, Spain
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28
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Du LJ, Zhang Y, Zhang HY, Yin G, Wang XY, Zhao J, Han YP. Synthesis of 1,6-Dihydropyridine-3-carbonitrile Derivatives via Lewis Acid-Catalyzed Annulation of Propargylic Alcohols with ( E)-3-Amino-3-phenylacrylonitriles. J Org Chem 2020; 85:9863-9875. [PMID: 32666794 DOI: 10.1021/acs.joc.0c01171] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A novel Lewis acid-catalyzed, highly efficient, practical, and atom-economical protocol for the synthesis of functionalized 1,2-dihydropyridine-3-carbonitrile derivatives in the presence of Bi(OTf)3 (10 mol %) in tetrahydrofuran (2.0 mL) at 80 °C for 8 h in air is described, starting from readily accessed propargylic alcohols and (E)-3-amino-3-phenylacrylonitriles. This cycloaddition protocol, which is scalable and proceeds under mild conditions, is amenable to the gram-scale construction of valuable 1,2-dihydropyridine-3-carbonitriles. Furthermore, the good functional group compatibility and broad scope of this strategy were demonstrated by a broad range of propargylic alcohols and (E)-3-amino-3-phenylacrylonitriles, with yields ranging from 34 to 96%.
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Affiliation(s)
- Li-Juan Du
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Yuecheng Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Hong-Yu Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Guohui Yin
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Xiao-Yan Wang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Jiquan Zhao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Ya-Ping Han
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, P. R. China
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29
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Gurram RK, Rajesh M, Reddy Singam MK, Nanubolu JB, Reddy MS. A Sequential Activation of Alkyne and C–H Bonds for the Tandem Cyclization and Annulation of Alkynols and Maleimides through Cooperative Sc(III) and Cp*-Free Co(II) Catalysis. Org Lett 2020; 22:5326-5330. [DOI: 10.1021/acs.orglett.0c01533] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Ravi Kumar Gurram
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research, New Delhi 110001, India
| | - Manda Rajesh
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research, New Delhi 110001, India
| | - Maneesh Kumar Reddy Singam
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research, New Delhi 110001, India
| | | | - Maddi Sridhar Reddy
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research, New Delhi 110001, India
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30
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Nagireddy A, Singam MKR, Nanubolu JB, Sridhar Reddy M. Base-Mediated Cyclopentannulation of Ynones with Amino Crotonates for Regio- and Stereoselective Synthesis of Pentafulvenes and Cyclopenta[ c]quinolines. J Org Chem 2020; 85:6970-6980. [PMID: 32421329 DOI: 10.1021/acs.joc.0c00203] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A regio- and stereoselective synthesis of unsymmetrically substituted pentafulvenes is reported via the condensation of readily available ynones and amino crotonates under very mild conditions. The mechanism of this 3 + 2 annulation involved a vinylogous Michael addition followed by an intramolecular enamine aldol condensation. Substrates with o-bromo tether further cyclized to pentannulated hydroquinolines through an isomerization/SNAr in the same reaction pot at the elevated temperature.
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Affiliation(s)
- Attunuri Nagireddy
- Academy of Scientific and Innovative Research, New Delhi 110001, India.,Department of OSPC, CSIR-Indian Institute of Chemical Technology, Habsiguda, Hyderabad 500007, India
| | - Maneesh Kumar Reddy Singam
- Academy of Scientific and Innovative Research, New Delhi 110001, India.,Department of OSPC, CSIR-Indian Institute of Chemical Technology, Habsiguda, Hyderabad 500007, India
| | | | - Maddi Sridhar Reddy
- Academy of Scientific and Innovative Research, New Delhi 110001, India.,Department of OSPC, CSIR-Indian Institute of Chemical Technology, Habsiguda, Hyderabad 500007, India
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31
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Wang Y, Fang Z, Chen X, Wang Y. Dirhodium(II)-Catalyzed C(sp 2 )-H Azidation of Benzaldehydes. Chemistry 2020; 26:6805-6811. [PMID: 32045045 DOI: 10.1002/chem.201905855] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Indexed: 12/12/2022]
Abstract
Multiple steps are needed to achieve the C-H functional of aromatic aldehyde, since the C-H functional reaction usually occurs preferentially at the aldehydic C-H bond over the aryl C-H bond. We report an efficient azidation method mediated by dirhodium(II) catalysts to achieve the direct aryl azidation of aromatic aldehydes avoiding the simultaneous use of protected aldehydes and prefunctionalized arenes. The regioselectivity of this method is similar to those of typical aromatic electrophilic substitution reactions. The resulting azidobenzaldehyde products are versatile building blocks or precursors for the synthesis of many biologically active compounds. The mechanism studies indicate that the one-electron oxidative intermediate Rh2 (II,III) N3 is responsible for the azide transfer.
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Affiliation(s)
- Yi Wang
- College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Zaixiang Fang
- College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Xiaochuan Chen
- College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Yuanhua Wang
- College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
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32
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Horák R, Kořistek K, Šamšulová V, Slaninová L, Grepl M, Kvapil L, Funk P, Hradil P, Soural M. Structural analogues of quinoline alkaloids: Straightforward route to [1,3]dioxolo[4,5‐
c
]quinolines with antibacterial properties. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3886] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Radim Horák
- Department of Organic ChemistryFaculty of Science, Palacký University 17. listopadu 12 Olomouc Czech Republic
| | - Kamil Kořistek
- Department of Organic ChemistryFaculty of Science, Palacký University 17. listopadu 12 Olomouc Czech Republic
| | - Veronika Šamšulová
- Department of Organic ChemistryFaculty of Science, Palacký University 17. listopadu 12 Olomouc Czech Republic
| | - Ludmila Slaninová
- Department of Organic ChemistryFaculty of Science, Palacký University 17. listopadu 12 Olomouc Czech Republic
| | - Martin Grepl
- Department of Organic ChemistryFaculty of Science, Palacký University 17. listopadu 12 Olomouc Czech Republic
| | - Lubomír Kvapil
- Department of Organic ChemistryFaculty of Science, Palacký University 17. listopadu 12 Olomouc Czech Republic
| | - Petr Funk
- Department of Organic ChemistryFaculty of Science, Palacký University 17. listopadu 12 Olomouc Czech Republic
| | - Pavel Hradil
- Department of Organic ChemistryFaculty of Science, Palacký University 17. listopadu 12 Olomouc Czech Republic
| | - Miroslav Soural
- Department of Organic ChemistryFaculty of Science, Palacký University 17. listopadu 12 Olomouc Czech Republic
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33
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Rajesh M, Kumar R, Puri S, Nanubolu JB, Reddy MS. Lewis-Acid-Catalyzed Decarboxylative Annulation of 2-Aminoindole-3-Carboxylate with Ynals Involving [3 + 2] Spirocycloaddition and 2,3-Aza Migration. Org Lett 2020; 22:1117-1123. [DOI: 10.1021/acs.orglett.9b04626] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Manda Rajesh
- Department of OSPC, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
- Academy of Scientific and Innovative Research, New Delhi, India
| | | | | | | | - Maddi Sridhar Reddy
- Department of OSPC, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
- Academy of Scientific and Innovative Research, New Delhi, India
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34
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Di Sanza R, Nguyen TLN, Iqbal N, Argent SP, Lewis W, Lam HW. Enantioselective nickel-catalyzed arylative and alkenylative intramolecular 1,2-allylations of tethered allene-ketones. Chem Sci 2020; 11:2401-2406. [PMID: 34084403 PMCID: PMC8157472 DOI: 10.1039/c9sc05246a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 01/20/2020] [Indexed: 01/02/2023] Open
Abstract
The enantioselective nickel-catalyzed reaction of tethered allene-ketones with (hetero)arylboronic acids or potassium vinyltrifluoroborate is described. Carbonickelation of the allene gives allylnickel species, which undergo cyclization by 1,2-allylation to produce chiral tertiary-alcohol-containing aza- and carbocycles in high diastereo- and enantioselectivities.
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Affiliation(s)
- Riccardo Di Sanza
- The Glaxo Smith Kline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham Jubilee Campus, Triumph Road Nottingham NG7 2TU UK
- School of Chemistry, University of Nottingham University Park Nottingham NG7 2RD UK
| | - Thi Le Nhon Nguyen
- The Glaxo Smith Kline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham Jubilee Campus, Triumph Road Nottingham NG7 2TU UK
- School of Chemistry, University of Nottingham University Park Nottingham NG7 2RD UK
| | - Naeem Iqbal
- The Glaxo Smith Kline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham Jubilee Campus, Triumph Road Nottingham NG7 2TU UK
- School of Chemistry, University of Nottingham University Park Nottingham NG7 2RD UK
| | - Stephen P Argent
- School of Chemistry, University of Nottingham University Park Nottingham NG7 2RD UK
| | - William Lewis
- School of Chemistry, University of Nottingham University Park Nottingham NG7 2RD UK
| | - Hon Wai Lam
- The Glaxo Smith Kline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham Jubilee Campus, Triumph Road Nottingham NG7 2TU UK
- School of Chemistry, University of Nottingham University Park Nottingham NG7 2RD UK
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35
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Abstract
We summarize the progress of the nickel-catalyzed alkyne difunctionalization reaction for the synthesis of tri- and tetrasubstituted olefins, with an emphasis on the strategy and control of stereochemistry.
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Affiliation(s)
- Wenfeng Liu
- The Center for Precision Synthesis (CPS)
- Institute for Advanced Studies (IAS)
- Wuhan University
- Wuhan
- P. R. China
| | - Wangqing Kong
- The Center for Precision Synthesis (CPS)
- Institute for Advanced Studies (IAS)
- Wuhan University
- Wuhan
- P. R. China
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36
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Singam MKR, Nagireddy A, Rajesh M, Ganesh V, Reddy MS. Ni-Catalyzed electrophile driven regioselective arylative cyclization of ortho-functional diaryl acetylenes for the synthesis of pyridine and indene derivatives. Org Chem Front 2020. [DOI: 10.1039/c9qo01266d] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A regioselective arylative cyclization of ortho functional diaryl acetylenes for the synthesis of selectively substituted diaryl pyridine and indene derivatives is accomplished through an electrophile driven alkyne polarization.
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Affiliation(s)
- Maneesh Kumar Reddy Singam
- Department of OSPC
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Academy of Scientific and Innovative Research
| | - Attunuri Nagireddy
- Department of OSPC
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Academy of Scientific and Innovative Research
| | - Manda Rajesh
- Department of OSPC
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Academy of Scientific and Innovative Research
| | - Veeramalla Ganesh
- Department of OSPC
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Academy of Scientific and Innovative Research
| | - Maddi Sridhar Reddy
- Department of OSPC
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Academy of Scientific and Innovative Research
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37
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Barber ER, Hynds HM, Stephens CP, Lemons HE, Fredrickson ET, Wilger DJ. Nickel-Catalyzed Hydroarylation of Alkynes under Reductive Conditions with Aryl Bromides and Water. J Org Chem 2019; 84:11612-11622. [PMID: 31433183 DOI: 10.1021/acs.joc.9b01556] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An operationally simple nickel-catalyzed hydroarylation reaction for alkynes is described. This three-component coupling reaction utilizes commercially available alkynes and aryl bromides, along with water and Zn. An air-stable and easily synthesized Ni(II) precatalyst is the only entity used in the reaction that is not commercially available. This reductive cross-coupling reaction displays a fairly unusual anti selectivity when aryl bromides with ortho substituents are used. In addition to optimization data and a preliminary substrate scope, complementary experiments including deuterium labeling studies are used to provide a tentative catalytic mechanism. We believe this report should inspire and inform other Ni-catalyzed carbofunctionalization reactions.
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Affiliation(s)
- E Ryan Barber
- Department of Chemistry and Biochemistry , Samford University , Birmingham , Alabama 35229 , United States
| | - Hannah M Hynds
- Department of Chemistry and Biochemistry , Samford University , Birmingham , Alabama 35229 , United States
| | - Claudia P Stephens
- Department of Chemistry and Biochemistry , Samford University , Birmingham , Alabama 35229 , United States
| | - Holli E Lemons
- Department of Chemistry and Biochemistry , Samford University , Birmingham , Alabama 35229 , United States
| | - Emily T Fredrickson
- Department of Chemistry and Biochemistry , Samford University , Birmingham , Alabama 35229 , United States
| | - Dale J Wilger
- Department of Chemistry and Biochemistry , Samford University , Birmingham , Alabama 35229 , United States
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38
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Ping Y, Wang K, Pan Q, Ding Z, Zhou Z, Guo Y, Kong W. Ni-Catalyzed Regio- and Enantioselective Domino Reductive Cyclization: One-Pot Synthesis of 2,3-Fused Cyclopentannulated Indolines. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02081] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yuanyuan Ping
- The Center for Precision Synthesis (CPS), Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, People’s Republic of China
| | - Kuai Wang
- The Center for Precision Synthesis (CPS), Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, People’s Republic of China
| | - Qi Pan
- The Center for Precision Synthesis (CPS), Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, People’s Republic of China
| | - Zhengtian Ding
- The Center for Precision Synthesis (CPS), Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, People’s Republic of China
| | - Zhijun Zhou
- The Center for Precision Synthesis (CPS), Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, People’s Republic of China
| | - Ya Guo
- The Center for Precision Synthesis (CPS), Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, People’s Republic of China
| | - Wangqing Kong
- The Center for Precision Synthesis (CPS), Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, People’s Republic of China
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39
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Erdelmeier I, Bülow G, Woo C, Decker J, Raabe G, Gais H. Cross‐Coupling Reaction of Alkenyl Sulfoximines and Alkenyl Aminosulfoxonium Salts with Organozincs by Dual Nickel Catalysis and Lewis Acid Promotion. Chemistry 2019; 25:8371-8386. [DOI: 10.1002/chem.201901163] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Irene Erdelmeier
- Institute of Organic ChemistryRWTH Aachen University Landoltweg 1 52056 Aachen Germany
- Innoverda 38 Rue Dunois 75013 Paris France
| | - Gerd Bülow
- Institute of Organic ChemistryRWTH Aachen University Landoltweg 1 52056 Aachen Germany
| | - Chang‐Wan Woo
- Institute of Organic ChemistryRWTH Aachen University Landoltweg 1 52056 Aachen Germany
| | - Jürgen Decker
- Institute of Organic ChemistryRWTH Aachen University Landoltweg 1 52056 Aachen Germany
| | - Gerhard Raabe
- Institute of Organic ChemistryRWTH Aachen University Landoltweg 1 52056 Aachen Germany
| | - Hans‐Joachim Gais
- Institute of Organic ChemistryRWTH Aachen University Landoltweg 1 52056 Aachen Germany
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40
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Affiliation(s)
- Hongwei Qian
- Department of ChemistryLishui University 1 Xueyuan Road Lishui City Zhejiang Province 323000 People's Republic of China
| | - Dayun Huang
- Department of ChemistryLishui University 1 Xueyuan Road Lishui City Zhejiang Province 323000 People's Republic of China
| | - Yicheng Bi
- Qingdao University of Science & TechnologySifang Campus 53 Zhengzhou Road Qingdao Shandong 266042 People's Republic of China
| | - Guobing Yan
- Department of ChemistryLishui University 1 Xueyuan Road Lishui City Zhejiang Province 323000 People's Republic of China
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41
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Wang C, Yu Y, Su Z, Li X, Cao H. Metal-Free C–B Bond Cleavage: An Acid Catalyzed Three-Component Reaction Construction of Imidazole-Containing Triarylmethanes. Org Lett 2019; 21:4420-4423. [DOI: 10.1021/acs.orglett.9b00969] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Changcheng Wang
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P. R. China
| | - Yue Yu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P. R. China
| | - Zhengquan Su
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P. R. China
| | - Xuechen Li
- Department of Chemistry, State Key Lab of Synthetic Chemistry, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Hua Cao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P. R. China
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42
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Liu J, Chen X, Shen X, Wang Y, Wang X, Bi X. Silver‐Catalyzed Sequential Cascade Reaction of Isocyanides with 1‐(2‐Ethynyl‐phenyl)‐prop‐2‐yn‐1‐ol: Access to Benzo[
b
]fluorenes and Benzofuran‐Pyrroles. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801344] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Jian‐Quan Liu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional MaterialsJiangsu Normal University, Xuzhou Jiangsu 221116 People's Republic of China
| | - Xinyi Chen
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional MaterialsJiangsu Normal University, Xuzhou Jiangsu 221116 People's Republic of China
| | - Xuanyu Shen
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional MaterialsJiangsu Normal University, Xuzhou Jiangsu 221116 People's Republic of China
| | - Yihan Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of ChemistryNortheast Normal University Changchun 130024 People's Republic of China
| | - Xiang‐Shan Wang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional MaterialsJiangsu Normal University, Xuzhou Jiangsu 221116 People's Republic of China
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of ChemistryNortheast Normal University Changchun 130024 People's Republic of China
- State Key Laboratory of Elemento-Organic ChemistryNankai University Tianjin 300071 People's Republic of China
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43
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Rajesh M, Singam MKR, Gadi RK, Sridhar Reddy M. 3-Heterosubstituted Benzofurans from Hydroxyphenyl Propargyl Alcohols via ortho-Quinone Methide through a Metal-/Catalyst-Free Conjugate Addition/Oxy-Cyclization. ACS OMEGA 2018; 3:17155-17163. [PMID: 31458335 PMCID: PMC6644147 DOI: 10.1021/acsomega.8b02480] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Accepted: 11/29/2018] [Indexed: 06/10/2023]
Abstract
A facile route to 3-sulfonylated and 3-(1-benzotriazolyl)-benzofurans is achieved from readily available o-hydroxyphenyl propargyl alcohols (o-HPPAs) and bench-top sodium sulfonylates and benzotriazoles with no assistance of any reagent or catalyst. Bifunctional o-quinone methides (o-QMs) were the putative reaction intermediates ensued from dehydration of o-HPPA. Our study revealed that the o-QM was so choosy in selection of the nucleophiles for the key Michael addition reaction.
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Affiliation(s)
- Manda Rajesh
- CSIR-Indian
Institute of Chemical Technology—OSPC Division, Hyderabad, Telengana 500007, India
- Academy
of Scientific and Innovative Research, New Delhi 110001, India
| | - Maneesh Kumar Reddy Singam
- CSIR-Indian
Institute of Chemical Technology—OSPC Division, Hyderabad, Telengana 500007, India
- Academy
of Scientific and Innovative Research, New Delhi 110001, India
| | - Ranjith Kumar Gadi
- CSIR-Indian
Institute of Chemical Technology—OSPC Division, Hyderabad, Telengana 500007, India
- Academy
of Scientific and Innovative Research, New Delhi 110001, India
| | - Maddi Sridhar Reddy
- CSIR-Indian
Institute of Chemical Technology—OSPC Division, Hyderabad, Telengana 500007, India
- Academy
of Scientific and Innovative Research, New Delhi 110001, India
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44
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Xiong D, Wang L, Jie L, Yang Z, Li L, Cui X. Rhodium‐Catalyzed Mild C7‐Amination of Indolines with Nitrosobenzenes. ChemistrySelect 2018. [DOI: 10.1002/slct.201803692] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dan Xiong
- Research Centre of Molecular Medicine Ministry of Education, Key Laboratory of Fujian Molecular Medicine Key Laboratory of Xiamen Marine and Gene Drugs School of Biomedical Sciences Huaqiao University, Xiamen 361021, P. R. China
| | - Lianhui Wang
- Research Centre of Molecular Medicine Ministry of Education, Key Laboratory of Fujian Molecular Medicine Key Laboratory of Xiamen Marine and Gene Drugs School of Biomedical Sciences Huaqiao University, Xiamen 361021, P. R. China
| | - Lianghua Jie
- Research Centre of Molecular Medicine Ministry of Education, Key Laboratory of Fujian Molecular Medicine Key Laboratory of Xiamen Marine and Gene Drugs School of Biomedical Sciences Huaqiao University, Xiamen 361021, P. R. China
| | - Zi Yang
- Research Centre of Molecular Medicine Ministry of Education, Key Laboratory of Fujian Molecular Medicine Key Laboratory of Xiamen Marine and Gene Drugs School of Biomedical Sciences Huaqiao University, Xiamen 361021, P. R. China
| | - Lulin Li
- Research Centre of Molecular Medicine Ministry of Education, Key Laboratory of Fujian Molecular Medicine Key Laboratory of Xiamen Marine and Gene Drugs School of Biomedical Sciences Huaqiao University, Xiamen 361021, P. R. China
| | - Xiuling Cui
- Research Centre of Molecular Medicine Ministry of Education, Key Laboratory of Fujian Molecular Medicine Key Laboratory of Xiamen Marine and Gene Drugs School of Biomedical Sciences Huaqiao University, Xiamen 361021, P. R. China
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45
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Rajesh M, Singam MKR, Puri S, Balasubramanian S, Sridhar Reddy M. Nickel Catalyzed syn-Selective Aryl Nickelation and Cyclization of Aldehyde/Enone-Tethered Terminal Alkynes with Arylboronic Acids. J Org Chem 2018; 83:15361-15371. [DOI: 10.1021/acs.joc.8b02618] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Manda Rajesh
- OSPC Division, CSIR-Indian Institute of Chemical Technology, Habsiguda, Hyderabad 500007, India
- Academy of Scientific and Innovative Research, New Delhi 110001, India
| | - Maneesh Kumar Reddy Singam
- OSPC Division, CSIR-Indian Institute of Chemical Technology, Habsiguda, Hyderabad 500007, India
- Academy of Scientific and Innovative Research, New Delhi 110001, India
| | - Surendra Puri
- MPC Division, CSIR-CDRI, Sitapur Road, Lucknow 226031, India
| | | | - Maddi Sridhar Reddy
- OSPC Division, CSIR-Indian Institute of Chemical Technology, Habsiguda, Hyderabad 500007, India
- Academy of Scientific and Innovative Research, New Delhi 110001, India
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46
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Li X, Han Y, Zhu X, Xia Y, Wei W, Li M, Liang Y. Lewis Acid‐Catalyzed Annulation of Propargylic Alcohols with (
Z
)‐2‐Styryl‐1
H
‐Indoles. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800907] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xue‐Song Li
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 People's Republic of China
| | - Ya‐Ping Han
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 People's Republic of China
| | - Xin‐Yu Zhu
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 People's Republic of China
| | - Yu Xia
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 People's Republic of China
| | - Wan‐Xu Wei
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 People's Republic of China
| | - Ming Li
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 People's Republic of China
| | - Yong‐Min Liang
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 People's Republic of China
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47
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Karad SN, Panchal H, Clarke C, Lewis W, Lam HW. Enantioselective Synthesis of Chiral Cyclopent-2-enones by Nickel-Catalyzed Desymmetrization of Malonate Esters. Angew Chem Int Ed Engl 2018; 57:9122-9125. [PMID: 29768708 PMCID: PMC6485403 DOI: 10.1002/anie.201805578] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Indexed: 11/08/2022]
Abstract
The enantioselective synthesis of highly functionalized chiral cyclopent‐2‐enones by the reaction of alkynyl malonate esters with arylboronic acids is described. These desymmetrizing arylative cyclizations are catalyzed by a chiral phosphinooxazoline/nickel complex, and cyclization is enabled by the reversible E/Z isomerization of alkenylnickel species. The general methodology is also applicable to the synthesis of 1,6‐dihydropyridin‐3(2H)‐ones.
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Affiliation(s)
- Somnath Narayan Karad
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham, Jubilee Campus, Triumph Road, Nottingham, NG7 2TU, UK.,School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Heena Panchal
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham, Jubilee Campus, Triumph Road, Nottingham, NG7 2TU, UK.,School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Christopher Clarke
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham, Jubilee Campus, Triumph Road, Nottingham, NG7 2TU, UK.,School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - William Lewis
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Hon Wai Lam
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham, Jubilee Campus, Triumph Road, Nottingham, NG7 2TU, UK.,School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
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48
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Karad SN, Panchal H, Clarke C, Lewis W, Lam HW. Enantioselective Synthesis of Chiral Cyclopent-2-enones by Nickel-Catalyzed Desymmetrization of Malonate Esters. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805578] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Somnath Narayan Karad
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry; University of Nottingham; Jubilee Campus; Triumph Road Nottingham NG7 2TU UK
- School of Chemistry; University of Nottingham; University Park Nottingham NG7 2RD UK
| | - Heena Panchal
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry; University of Nottingham; Jubilee Campus; Triumph Road Nottingham NG7 2TU UK
- School of Chemistry; University of Nottingham; University Park Nottingham NG7 2RD UK
| | - Christopher Clarke
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry; University of Nottingham; Jubilee Campus; Triumph Road Nottingham NG7 2TU UK
- School of Chemistry; University of Nottingham; University Park Nottingham NG7 2RD UK
| | - William Lewis
- School of Chemistry; University of Nottingham; University Park Nottingham NG7 2RD UK
| | - Hon Wai Lam
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry; University of Nottingham; Jubilee Campus; Triumph Road Nottingham NG7 2TU UK
- School of Chemistry; University of Nottingham; University Park Nottingham NG7 2RD UK
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49
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Gillbard SM, Chung CH, Karad SN, Panchal H, Lewis W, Lam HW. Synthesis of multisubstituted pyrroles by nickel-catalyzed arylative cyclizations of N-tosyl alkynamides. Chem Commun (Camb) 2018; 54:11769-11772. [PMID: 30276371 DOI: 10.1039/c8cc06649c] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The synthesis of multisubstituted pyrroles by the nickel-catalyzed reaction of N-tosyl alkynamides with arylboronic acids is reported.
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Affiliation(s)
- Simone M. Gillbard
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry
- University of Nottingham
- Jubilee Campus
- Triumph Road
- Nottingham
| | - Chieh-Hsu Chung
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry
- University of Nottingham
- Jubilee Campus
- Triumph Road
- Nottingham
| | - Somnath Narayan Karad
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry
- University of Nottingham
- Jubilee Campus
- Triumph Road
- Nottingham
| | - Heena Panchal
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry
- University of Nottingham
- Jubilee Campus
- Triumph Road
- Nottingham
| | - William Lewis
- School of Chemistry
- University of Nottingham
- University Park
- Nottingham
- UK
| | - Hon Wai Lam
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry
- University of Nottingham
- Jubilee Campus
- Triumph Road
- Nottingham
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