1
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Wang Y, Ma P, Wang J. Ru- and Co-Catalyzed Intermolecular Carbonyl-Alkyne Metathesis Reactions of 1 H-Indene-1,2,3-triones with Internal Alkynes. Org Lett 2024; 26:3164-3168. [PMID: 38553426 DOI: 10.1021/acs.orglett.4c00751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
The catalyst-dependent intermolecular carbonyl-alkyne metathesis (CAM) reaction of 1H-indene-1,2,3-triones with internal alkynes was realized using Ru and Co catalysts. 2-(2-Oxo-1,2-diphenylethylidene)-1H-indene-1,3(2H)-dione derivatives were obtained using a Ru catalyst, whereas S-alkyl 2-(1,3-dioxo-1,3-dihydro-2H-inden-2-ylidene)-2-phenylethanethioates were prepared using a Co catalyst. These transformations led to the synthesis of α,β-unsaturated carbonyl compounds with a broad substrate scope, excellent regiocontrol, and gram-scale amenability. This catalytic strategy using a Co or Ru catalyst has rarely been described for other established CAM catalysts.
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Affiliation(s)
- Yuhang Wang
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Peng Ma
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Jianhui Wang
- Department of Chemistry, School of Science, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300072, China
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2
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Su Z, Amin PM, Wang S. Gold(I)-Catalyzed Ring-Closing Alkyne-Carbonyl Metathesis for the Synthesis of Butenolides. Chemistry 2023; 29:e202302044. [PMID: 37652895 DOI: 10.1002/chem.202302044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/31/2023] [Accepted: 08/31/2023] [Indexed: 09/02/2023]
Abstract
Alkyne-carbonyl metathesis is a type of carbon-carbon forming reaction involving the construction a carbon-carbon double bond and a carbonyl group in one transformation. Herein, a Au(I)-catalyzed ring-closing alkyne-carbonyl metathesis protocol has been developed to make densely substituted γ-butenolides from propargyl α-ketoesters. It features 100 % atom economy, excellent substrate flexibility and benign functional group tolerance. Mechanistic studies demonstrate that the coordinative interaction between the gold catalyst and the alkyne might initiate the transfer of an oxygen atom and the formation of the carbon-carbon double bond. By using this gold-catalyzed ring-closing alkyne-carbonyl metathesis as a key step reaction, four naturally occurring butenolide-type compounds including decumbic acid (45 % yield for 3 steps), deoxyisosporothric acid (32 % yield for 5 steps), lichesterinic acid (34 % yield for 5 steps) and isomuronic acid (6 % yield for 8 steps) have been synthesized starting from commercially available starting materials.
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Affiliation(s)
- Zhenjie Su
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu, 210023, China
| | - Pathan Mosim Amin
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu, 210023, China
| | - Shaozhong Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu, 210023, China
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3
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Wei J, Zhang J, Cheng JK, Xiang SH, Tan B. Modular enantioselective access to β-amino amides by Brønsted acid-catalysed multicomponent reactions. Nat Chem 2023; 15:647-657. [PMID: 37055574 DOI: 10.1038/s41557-023-01179-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 03/13/2023] [Indexed: 04/15/2023]
Abstract
β-Amino acids are structural motifs widely found in therapeutic natural products, novel biomimetic polymers and peptidomimetics. As a convergent method, the synthesis of stereoenriched β-amino amides through the asymmetric Mannich reaction requires specialized amide substrates or a metal catalyst for enolate formation. By a redesign of the Ugi reaction, a conceptually different solution to prepare chiral β-amino amides was established using ambiphilic ynamides as two-carbon synthons. The modulation of ynamides or oxygen nucleophiles concisely furnished three classes of β-amino amides with generally good efficiency as well as excellent chemo- and stereo-control. The utility is verified in the preparation of over 100 desired products that bear one or two contiguous carbon stereocentres, including those that directly incorporate drug molecules. This advance also provides a synthetic shortcut to other valuable structures. The amino amides could be elaborated into β-amino acids, anti-vicinal diamines, γ-amino alcohols and β-lactams or undergo transamidation with amino acids and amine-containing pharmaceuticals.
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Affiliation(s)
- Jun Wei
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, China
| | - Jian Zhang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, China
| | - Jun Kee Cheng
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, China
| | - Shao-Hua Xiang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, China.
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, China.
| | - Bin Tan
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, China.
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4
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Mann JS, Mai BK, Nguyen TV. Carbocation-Catalyzed Intramolecular and Intermolecular Carbonyl-Alkyne Metathesis Reactions. ACS Catal 2023. [DOI: 10.1021/acscatal.2c06016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Affiliation(s)
- Jasnoor S. Mann
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Binh Khanh Mai
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Thanh Vinh Nguyen
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
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5
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Su Z, Wang S. Construction of 4-Acyl-2-quinolones through Sc(OTf) 3-Catalyzed Ring-Closing Alkyne-Carbonyl Metathesis. J Org Chem 2022; 87:16873-16881. [PMID: 36413958 DOI: 10.1021/acs.joc.2c02077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
An atom-economical protocol to construct densely substituted 4-acyl-2-quinolones from N-(2-alkynylphenyl)-α-ketoamides has been developed through Sc(OTf)3-catalyzed ring-closing alkyne-carbonyl metathesis. Mechanistic experimental studies support that coordinative interaction between Sc(OTf))3 and the substrate, the formation of an oxetene intermediate, and an electrocyclic ring-opening of the oxetene might be involved.
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Affiliation(s)
- Zhenjie Su
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Shaozhong Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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6
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Sobhani M, Figueira de Abreu RM, Villinger A, Ehlers P, Langer P. Synthesis of imidazo[1,2- a]benzoazepines by alkyne-carbonyl-metathesis. Org Biomol Chem 2022; 20:9207-9216. [DOI: 10.1039/d2ob01320g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Imidazo[1,2-a]benzoazepines were prepared in good yields by combination of Pd catalyzed cross coupling reactions with alkyne-carbonyl metathesis (ACM).
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Affiliation(s)
- Maryam Sobhani
- Universität Rostock, Institut für Chemie, A.-Einstein-Str. 3a, 18059 Rostock, Germany
| | | | - Alexander Villinger
- Universität Rostock, Institut für Chemie, A.-Einstein-Str. 3a, 18059 Rostock, Germany
| | - Peter Ehlers
- Universität Rostock, Institut für Chemie, A.-Einstein-Str. 3a, 18059 Rostock, Germany
| | - Peter Langer
- Universität Rostock, Institut für Chemie, A.-Einstein-Str. 3a, 18059 Rostock, Germany
- Leibniz Institut für Katalyse an der Universität Rostock, A.-Einstein-Str. 29a, 18059 Rostock, Germany
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7
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Ghouse S, Sreenivasulu C, Kishore DR, Satyanarayana G. Recent developments by zinc based reagents/catalysts promoted organic transformations. Tetrahedron 2022. [DOI: 10.1016/j.tet.2021.132580] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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8
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Baire B, Santhi J. Ag(I)-Promoted homo-dimerization of 2-(alk-2-yn-1-onyl)-1-alkynylbenzenes via a [4 + 2] cycloaddition of benzopyrylium ions: access to structurally unique naphthalenes. Org Biomol Chem 2021; 20:247-251. [PMID: 34904139 DOI: 10.1039/d1ob02229f] [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
Herein we report a Ag(I)-promoted homo-dimerization of 2-(alk-2-yn-1-onyl)-1-alkynylbenzenes for the synthesis of structurally novel and functionalized naphthalene derivatives. This transformation exhibits a broad scope for the alkyl as well as aryl groups present on alkynes. Observations made from control experiments suggest the possible mechanism as (i) the homo-dimerization of the in situ generated benzopyrylium ion intermediates through a head-tail [4 + 2] cycloaddition, followed by (ii) the competitive ring-opening vs. decarbonylative aromatization of the adduct to give formylated and deformylated naphthalenes, respectively.
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Affiliation(s)
- Beeraiah Baire
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamil Nadu, 600036, India.
| | - Jampani Santhi
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamil Nadu, 600036, India.
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9
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Chakraborty B, Jana U. Iron-catalyzed alkyne-carbonyl metathesis for the synthesis of 6,7-dihydro-5 H-dibenzo[ c, e]azonines. Org Biomol Chem 2021; 19:10549-10553. [PMID: 34842881 DOI: 10.1039/d1ob01258d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The synthesis of nine-membered rings via alkyne-carbonyl metathesis is reported. The alkyne and acetal units contained in a biaryl substrate undergo the intramolecular alkyne-carbonyl metathesis reaction under FeCl3-catalysis to furnish the unexplored 6,7-dihydro-5H-dibenzo[c,e]azonines. The method provides an alternative to existing routes to nine-membered rings with cheap, non-toxic iron catalysts and milder conditions.
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Affiliation(s)
- Baitan Chakraborty
- Department of Chemistry, Jadavpur University, Kolkata 700032, West Bengal, India.
| | - Umasish Jana
- Department of Chemistry, Jadavpur University, Kolkata 700032, West Bengal, India.
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10
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Sandeep K, Siva Reddy A, Kumara Swamy KC. Palladium-catalysed cyclisation of ynamides and propargyl tethered iodosulfonamides with boronic acids leading to benzosultams. Org Biomol Chem 2021; 19:6871-6882. [PMID: 34323909 DOI: 10.1039/d1ob00925g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An efficient and straightforward Pd-catalysed synthesis of diversely substituted sultams utilising ynamides and boronic acids is disclosed; toluene was found to be the most suitable solvent for this transformation. This strategy has been successfully applied to generate dihydrobenzo[d]isothiazole 1,1-dioxides and dihydro-2H-benzo[e][1,2]thiazine 1,1-dioxides. The advantages of this protocol are good functional group tolerance, broad substrate scope, high-yielding reaction and low catalyst loading to access benzofused sultams with five-/six-membered rings. The synthetic utility has been demonstrated by a gram-scale synthesis. A plausible catalytic cycle involving carbopalladation has been proposed for this transformation.
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Affiliation(s)
- K Sandeep
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, Telangana, India.
| | - Alla Siva Reddy
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, Telangana, India.
| | - K C Kumara Swamy
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, Telangana, India.
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11
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One-pot approach: Tandem consecutive Ugi-4CR/ACM-type reaction towards the synthesis of functionalised quinoline-2(1H)-one scaffolds. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152889] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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12
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Ma RJ, Xu WK, Sun JT, Chen L, Si CM, Wei BG. Synthesis of dihydro-[1,3]oxazino[4,3-a] isoindole and tetrahydroisoquinoline through Cu(OTf)2-catalyzed reactions of N-acyliminium ions with ynamides. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152873] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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13
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Wang QL, Zhou Q, Liao J, Chen Z, Xiong BQ, Deng GJ, Tang KW, Liu Y. Cu-Catalyzed Oxidative Dual Arylation of Active Alkenes: Preparation of Cyanoarylated Oxindoles through Denitrogenation of 3-Aminoindazoles. J Org Chem 2021; 86:2866-2875. [PMID: 33467855 DOI: 10.1021/acs.joc.0c02798] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A novel and mild Cu-catalyzed oxidative dual arylation of carbon-carbon double bonds in acrylamides with 3-aminoindazoles is proposed for the synthesis of cyanoarylated oxindoles. Notably, 3-aminoindazoles are employed as efficient arylating agents via the cleavage of two C-N bonds. This oxidative dual arylation of active alkenes involves a radical process and undergoes a sequence of 3-aminoindazole oxidation, two-C-N-bond cleavage, cyanoaryl radical addition, and intramolecular cyclization.
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Affiliation(s)
- Qiao-Lin Wang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.,Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Quan Zhou
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Jia Liao
- Technical Center of Gongbei Customs, No. 501, Yinhua Road, Xiangzhou District, Zhuhai, Guangdong 519000, China
| | - Zan Chen
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Bi-Quan Xiong
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Guo-Jun Deng
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Ke-Wen Tang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Yu Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.,Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
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14
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Lynch CC, Sripada A, Wolf C. Asymmetric synthesis with ynamides: unique reaction control, chemical diversity and applications. Chem Soc Rev 2020; 49:8543-8583. [PMID: 33073285 PMCID: PMC8383824 DOI: 10.1039/d0cs00769b] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Ynamides are among the most powerful building blocks in organic synthesis and have become invaluable starting materials for the construction of multifunctional compounds and challenging architectures that would be difficult to prepare otherwise. The rapidly growing popularity originates from the unique reactivity and ease of manipulation of the polarized ynamide triple bond, the advance of practical methods for making them, and the simplicity of storage and handling. These attractive features and the demonstration of numerous synthetic applications have spurred the development of intriguing asymmetric reaction strategies during the last decade. An impressive variety of chemo-, regio- and stereoselective carbon-carbon and carbon-heteroatom bond forming reactions with ynamides have been developed and now significantly enrich the toolbox of synthetic chemists. This review provides a comprehensive overview of asymmetric ynamide chemistry since 2010 with a focus on the general scope, current limitations, stereochemical reaction control and mechanistic aspects.
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Affiliation(s)
- Ciarán C Lynch
- Department of Chemistry, Georgetown University, 37th and O Streets, Washington, DC 20057, USA.
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15
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Pyridinium triflate catalyzed intramolecular alkyne-carbonyl metathesis reaction of O-propargylated 2-hydroxyarylaldehydes. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152657] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Rodphon W, Thongsornkleeb C, Tummatorn J, Ruchirawat S. Synthesis of 4-Acylchromene via Highly Chemoselective Iodine-Catalyzed Cyclization of Alkynylarylether Dimethylacetals. Chem Asian J 2020; 15:3475-3486. [PMID: 32902153 DOI: 10.1002/asia.202000994] [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: 08/21/2020] [Revised: 09/02/2020] [Indexed: 11/11/2022]
Abstract
4-Acylchromene is an important core structure found in bioactive natural products and bioactive synthetic compounds. Moreover, this core structure is frequently used as a key precursor for the synthesis of more complex molecules. In this work, we discovered that a combination of acetone and catalytic I2 could lead to selective activation of acetal in alkynylarylether dimethylacetal substrates while alkyne moiety remained intact. This activation of acetal led to the generation of oxonium ion intermediate which triggered intramolecular cyclization and elimination of methanol to provide the desired 4-acylchromene as the sole product in up to 95% yield. Moreover, this method could be applied in a broad range of substrates under a mild and metal-free catalytic conditions for the synthesis of 4-acylchromene derivatives.
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Affiliation(s)
- Warabhorn Rodphon
- Program on Chemical Biology, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok, 10210, Thailand
| | - Charnsak Thongsornkleeb
- Program on Chemical Biology, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok, 10210, Thailand.,Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6, Laksi, Bangkok, 10210, Thailand
| | - Jumreang Tummatorn
- Program on Chemical Biology, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok, 10210, Thailand.,Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6, Laksi, Bangkok, 10210, Thailand
| | - Somsak Ruchirawat
- Program on Chemical Biology, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok, 10210, Thailand.,Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6, Laksi, Bangkok, 10210, Thailand
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17
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Er(OTf)3-catalyzed approach to 3-alkenylindoles through regioselective addition of ynamides and indoles. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131649] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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18
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Zhang YX, Chen LY, Sun JT, Si CM, Wei BG. Gold-Catalyzed Addition–N-Boc Cleavage–Cyclization of N,O-Acetal with Ynamides for Construction of 6-(tert-Butyldimethylsilyl)oxy-tetrahydropyrrolo[1,2-c][1,3]oxazin-1-ones. J Org Chem 2020; 85:12603-12613. [DOI: 10.1021/acs.joc.0c01776] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yan-Xue Zhang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, China
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Ling-Yan Chen
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, China
- The Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, Xiamen 361005, China
| | - Jian-Ting Sun
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, China
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Chang-Mei Si
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Bang-Guo Wei
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
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19
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Löwe P, Feldt M, Wünsche MA, Wilm LFB, Dielmann F. Oxophosphonium-Alkyne Cycloaddition Reactions: Reversible Formation of 1,2-Oxaphosphetes and Six-membered Phosphorus Heterocycles. J Am Chem Soc 2020; 142:9818-9826. [PMID: 32364716 DOI: 10.1021/jacs.0c03494] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
While the metathesis reaction between alkynes and carbonyl compounds is an important tool in organic synthesis, the reactivity of alkynes with isoelectronic main-group R2E═O compounds is unexplored. Herein, we show that oxophosphonium ions, which are the isoelectronic phosphorus congeners to carbonyl compounds, undergo [2 + 2] cycloaddition reactions with different alkynes to generate 1,2-oxaphosphete ions, which were isolated and structurally characterized. The strained phosphorus-oxygen heterocycles open to the corresponding heterodiene structure at elevated temperature, which was used to generate six-membered phosphorus heterocycles via hetero Diels-Alder reactions. Insights into the influence of the substituents at the phosphorus center on the energy profile of the oxygen atom transfer reaction were obtained by quantum-chemical calculations.
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Affiliation(s)
- Pawel Löwe
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 30, 48149 Münster, Germany
| | - Milica Feldt
- Theoretische Organische Chemie, Organisch-Chemisches Institut and Center for Multiscale Theory and Computation, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Marius A Wünsche
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 30, 48149 Münster, Germany
| | - Lukas F B Wilm
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 30, 48149 Münster, Germany
| | - Fabian Dielmann
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 30, 48149 Münster, Germany
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20
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Xu T, Chen K, Zhu HY, Hao WJ, Tu SJ, Jiang B. Yb(OTf)3-Catalyzed Alkyne–Carbonyl Metathesis–Oxa-Michael Addition Relay for Diastereoselective Synthesis of Functionalized Naphtho[2,1-b]furans. Org Lett 2020; 22:2414-2418. [DOI: 10.1021/acs.orglett.0c00613] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ting Xu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P.R. China
| | - Ke Chen
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P.R. China
| | - Hong-Yu Zhu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P.R. China
| | - Wen-Juan Hao
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P.R. China
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P.R. China
| | - Bo Jiang
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P.R. China
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Zhang CH, Huang R, Qing X, Lin J, Yan SJ. Cascade reaction of isatins with nitro-substituted enamines: highly selective synthesis of functionalized (Z)-3-(1-(arylamino)-2-oxoarylidene)indolin-2-ones. Chem Commun (Camb) 2020; 56:3488-3491. [DOI: 10.1039/d0cc00923g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A novel protocol for the construction of functionalized (Z)-3-(1(-arylamino)-2-oxoarylidene)indolin-2-ones (AOIDOs) from isatins 1 with nitro-substituted enamines 2via an unprecedented cascade reaction catalyzed by sulfamic acid is developed.
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Affiliation(s)
- Cong-Hai Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry of Education and Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
- Kunming
| | - Rong Huang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry of Education and Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
- Kunming
| | - Xia Qing
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry of Education and Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
- Kunming
| | - Jun Lin
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry of Education and Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
- Kunming
| | - Sheng-Jiao Yan
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry of Education and Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
- Kunming
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