1
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Jiang S, Liang M, Bai J, Yang R, Chen X, Huang H, Ding HX, Luo MJ, Song XR, Xiao Q. TFA-Promoted Cascade Sulfonylation/Rearrangement/Cyclization of 1,5-Diynols and Sodium Sulfinates to Construct Sulfonylated Benzo[ b]fluorenes. J Org Chem 2024; 89:6416-6427. [PMID: 38616352 DOI: 10.1021/acs.joc.4c00443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
A novel conversion of 1,5-diynols into sulfonylated benzo[b]fluorenes is reported by a TFA-promoted cascade cyclization with sodium sulfinates under mild conditions. This strategy provides an efficient and practical approach for accessing various sulfonated benzo[b]fluorenes in moderate to excellent yields under metal-free conditions. On the basis of the control experimental results and density functional theory calculations, a possible cascade transformation mechanism consisting of the dehydration of propargylic alcohols, sulfonylation, allenylation, and Schmittel-type cyclization is proposed. It is worth noting that TFA played an important role in this cascade cyclization, which promoted C-SO2R bond cleavage in a propargylic sulfone intermediate to form allenyl sulfones, followed by Schmittel-type cyclization to give the target product.
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Affiliation(s)
- Shimin Jiang
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, Jiangxi 330013, China
| | - Meng Liang
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, Jiangxi 330013, China
| | - Jiang Bai
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, Jiangxi 330013, China
| | - Ruchun Yang
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, Jiangxi 330013, China
| | - Xi Chen
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, Jiangxi 330013, China
| | - Haiyang Huang
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, Jiangxi 330013, China
| | - Hai-Xin Ding
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, Jiangxi 330013, China
| | - Mu-Jia Luo
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, Jiangxi 330013, China
| | - Xian-Rong Song
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, Jiangxi 330013, China
| | - Qiang Xiao
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, Jiangxi 330013, China
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2
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Jiang S, Du S, Bai J, Chen X, Liang M, Lin S, Luo MJ, Song XR, Xiao Q. Cascade Cyclization of 1,5-Diynols and (RO) 2P(O)SH to Construct Benzo[ b]fluorenyl S-Alkyl Phosphorothioates under Catalyst-Free Conditions. J Org Chem 2023; 88:14571-14586. [PMID: 37789588 DOI: 10.1021/acs.joc.3c01596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
An efficient and practical cascade cyclization of 1,5-diynols with (RO)2P(O)SH as the acid promoter and nucleophile under mild conditions was developed. A variety of highly substituted benzo[b]fluorenyl-containing S-alkyl phosphorothioates were successfully constructed in moderate to excellent yields. Furthermore, this protocol exhibited good functional group tolerance, a broad substrate scope, and potential practical applications, with water as the only byproduct. The reaction proceeded with allenyl thiophosphate as a key intermediate, followed by a Schmittel-type cyclization process to produce the target product.
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Affiliation(s)
- Shimin Jiang
- Institute of Organic Chemistry, Jiangxi Science &Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Sha Du
- Institute of Organic Chemistry, Jiangxi Science &Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Jiang Bai
- Institute of Organic Chemistry, Jiangxi Science &Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Xi Chen
- Institute of Organic Chemistry, Jiangxi Science &Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Meng Liang
- Institute of Organic Chemistry, Jiangxi Science &Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Shihong Lin
- Institute of Organic Chemistry, Jiangxi Science &Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Mu-Jia Luo
- Institute of Organic Chemistry, Jiangxi Science &Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Xian-Rong Song
- Institute of Organic Chemistry, Jiangxi Science &Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Qiang Xiao
- Institute of Organic Chemistry, Jiangxi Science &Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
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3
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Zhang D, Fan J, Shi Y, Huang Y, Fu C, Wu X, Ma S. Copper-catalyzed propargylic C-H functionalization for allene syntheses. Chem Sci 2023; 14:9191-9196. [PMID: 37655026 PMCID: PMC10466309 DOI: 10.1039/d3sc01501g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 08/08/2023] [Indexed: 09/02/2023] Open
Abstract
Allenenitriles bearing different synthetically versatile functional groups have been prepared smoothly from 5-alkynyl fluorosulfonamides in decent yields with an excellent chemo- and regio-selectivity under redox neutral conditions. The resulting allenenitriles can be readily converted to useful functionalized heterocycles. Based on mechanistic study, it is confirmed that this is the first example of radical-based non-activated propargylic C-H functionalization for allene syntheses.
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Affiliation(s)
- Dongjie Zhang
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry Zhejiang University Hangzhou Zhejiang 310027 P. R. China
| | - Junjie Fan
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry Zhejiang University Hangzhou Zhejiang 310027 P. R. China
| | - Yaqi Shi
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry Zhejiang University Hangzhou Zhejiang 310027 P. R. China
| | - Yankai Huang
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry Zhejiang University Hangzhou Zhejiang 310027 P. R. China
| | - Chunling Fu
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry Zhejiang University Hangzhou Zhejiang 310027 P. R. China
| | - Xiaoyan Wu
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry Zhejiang University Hangzhou Zhejiang 310027 P. R. China
| | - Shengming Ma
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry Zhejiang University Hangzhou Zhejiang 310027 P. R. China
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4
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Du S, Jiang S, Yang R, Jin F, Huang H, Tian WF, Zhou ZZ, Song XR, Xiao Q. Direct Synthesis of Benzo[ b]fluorenyl Thiophosphates via Tandem Cyclization of Diynols with (RO) 2P(O)SH. Org Lett 2023. [PMID: 36795512 DOI: 10.1021/acs.orglett.3c00009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
A general and metal-free protocol for the construction of benzo[b]fluorenyl thiophosphates was developed through the cascade cyclization of easily prepared diynols and (RO)2P(O)SH, with water as the only byproduct. The novel transformation involved the allenyl thiophosphate as the key intermediate, followed by Schmittel-type cyclization to achieve the desired products. Notably, (RO)2P(O)SH acted not only as a nucleophile but also as an acid-promoter to initiate the reaction.
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Affiliation(s)
- Sha Du
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang 330013, Jiangxi Province, P.R. China
| | - Shimin Jiang
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang 330013, Jiangxi Province, P.R. China
| | - Ruchun Yang
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang 330013, Jiangxi Province, P.R. China
| | - Fengyan Jin
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang 330013, Jiangxi Province, P.R. China
| | - Haiyang Huang
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang 330013, Jiangxi Province, P.R. China
| | - Wan-Fa Tian
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang 330013, Jiangxi Province, P.R. China
| | - Zhao-Zhao Zhou
- College of Chemistry and Food Science, Nanchang Normal University, Nanchang, 330000, P.R. China
| | - Xian-Rong Song
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang 330013, Jiangxi Province, P.R. China
| | - Qiang Xiao
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang 330013, Jiangxi Province, P.R. China
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5
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Unexpected Decarbonylation of Acylethynylpyrroles under the Action of Cyanomethyl Carbanion: A Robust Access to Ethynylpyrroles. Molecules 2023; 28:molecules28031389. [PMID: 36771055 PMCID: PMC9919934 DOI: 10.3390/molecules28031389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/25/2023] [Accepted: 01/26/2023] [Indexed: 02/04/2023] Open
Abstract
It has been found that the addition of CH2CN- anion to the carbonyl group of acylethynylpyrroles, generated from acetonitrile and t-BuOK, results in the formation of acetylenic alcohols, which undergo unexpectedly easy (room temperature) decomposition to ethynylpyrroles and cyanomethylphenylketones (retro-Favorsky reaction). This finding allows a robust synthesis of ethynylpyrroles in up to 95% yields to be developed. Since acylethynylpyrroles became available, the strategy thus found makes ethynylpyrroles more accessible than earlier. The quantum-chemical calculations (B2PLYP/6-311G**//B3LYP/6-311G**+C-PCM/acetonitrile) confirm the thermodynamic preference of the decomposition of the intermediate acetylenic alcohols to free ethynylpyrroles rather than their potassium derivatives.
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Athira M, Shanmugam P. BF3.OEt2 catalysed synthesis of diverse 9‑fluorenlidene appended indole-1-oxides and spiro[fluorene-9,10′-indeno[1,2-b]indol]-5′-yl) ethanones from 9-(phenylethynyl)-fluoren-9-ol and nitrosobenzene. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154218] [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]
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7
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Yaragorla S, Latha DS. Chemo- and Stereoselective Synthesis of Substituted Thiazoles from tert-Alcohols Bearing Alkene and Alkyne Groups with Alkaline Earth Catalysts. ACS OMEGA 2022; 7:34693-34706. [PMID: 36188313 PMCID: PMC9520744 DOI: 10.1021/acsomega.2c05085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 09/05/2022] [Indexed: 06/16/2023]
Abstract
We report here that thioamides can distinguish C-C double bonds and C-C triple bonds chemoselectively when subjected to a reaction with pent-1-en-4-yn-3-ol derivatives in the presence of Ca(OTf)2. This protocol offers a fast, efficient, and high-yielding synthesis of functionalized thiazoles. Interestingly, this reaction offers a time-dependent formation of kinetic and thermodynamic products. The products showed stereoselectivity concerning the alkene geometry. Further, we extended this protocol to synthesize oxazoles from propargyl alcohols and ibuprofen (NSAID) was converted into amide and then subjected to oxazole formation with tert-propargyl alcohols.
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8
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Qian C, Huang T, Sun J, Li P. Catalyst-Controlled Divergent Reactions of 2,3-Disubstituted Indoles with Propargylic Alcohols: Synthesis of 3 H-Benzo[ b]azepines and Axially Chiral Tetrasubstituted Allenes. Org Lett 2022; 24:6472-6476. [PMID: 36040372 DOI: 10.1021/acs.orglett.2c02642] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Catalyst-controlled divergent reactions of 2,3-disubstituted indoles with propargylic alcohols were developed for the first time. In the presence of TsOH or B(C6F5)3 as catalyst, 2,3-disubstituted indoles reacted smoothly with 3-alkynyl-3-hydroxyisoindolinones to afford 3H-benzo[b]azepines by selective C2(sp2)-C3(sp2) ring expansion of indoles. In contrast, decreasing the catalyst strength (e.g., with chiral phosphoric acid) interrupted the cascade reactions, affording axially chiral tetrasubstituted allenes bearing an adjacent chiral quaternary carbon stereocenter. Control experiments provided insights into the reaction mechanism.
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Affiliation(s)
- Chenxiao Qian
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, China.,Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Tingting Huang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, China
| | - Jianwei Sun
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Pengfei Li
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, China
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9
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Bai JF, Tang J, Gao X, Jiang ZJ, Tang B, Chen J, Gao Z. Regioselective Cycloaddition and Substitution Reaction of Tertiary Propargylic Alcohols and Heteroareneboronic Acids via Acid Catalysis. Org Lett 2022; 24:4507-4512. [PMID: 35708270 DOI: 10.1021/acs.orglett.2c01403] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report an acid-catalyzed formal cycloaddition and dehydrative substitution reaction of tertiary propargylic alcohols and heteroareneboronic acids. The properties of the substituents on the alkynyl moiety determines the regioselectivity of the reaction, which could selectively construct fused heterocycles, tetrasubstituted allenes, or 1,3-dienes. This reaction proceeds efficiently with a wide array of substrate scope in up to 89% yield. A significant advantage of this protocol is the transition-metal-free and mild conditions needed.
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Affiliation(s)
- Jian-Fei Bai
- School of Biological and Chemical Engineering, NingboTech University, 315100 Ningbo, P. R. China
| | - Jianbo Tang
- School of Biological and Chemical Engineering, NingboTech University, 315100 Ningbo, P. R. China
| | - Xiaolong Gao
- Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, 730000 Lanzhou, P. R. China
| | - Zhi-Jiang Jiang
- School of Biological and Chemical Engineering, NingboTech University, 315100 Ningbo, P. R. China
| | - Bencan Tang
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Ningbo China, 315100 Ningbo, PR China
| | - Jia Chen
- School of Biological and Chemical Engineering, NingboTech University, 315100 Ningbo, P. R. China
| | - Zhanghua Gao
- School of Biological and Chemical Engineering, NingboTech University, 315100 Ningbo, P. R. China
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10
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Lin X, Shen B, Wang Z, Cheng Y, Chen X, Li P, Yu P, Li W. Organocatalytic Enantioselective 1,10-Addition of Alkynyl Indole Imine Methides with Thiazolones: An Access to Axially Chiral Tetrasubstituted Allenes. Org Lett 2022; 24:4914-4918. [PMID: 35770873 DOI: 10.1021/acs.orglett.2c01794] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
An asymmetric organocatalytic remote 1,10-addition of alkynyl indole imine methides generated in situ from α-(6-indolyl) propargylic alcohols with thiazolones has been developed for the first time, affording axially chiral tetrasubstituted allenes featuring vicinal sulfur-containing quaternary carbon stereocenters in high yields with excellent stereoselectivities. The representative scale-up reaction and transformations of the 1,10-adduct were examined. The reaction mechanism was expounded by control experiments and DFT calculations.
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Affiliation(s)
- Xiao Lin
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, China
| | - Boming Shen
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology, Shenzhen 518055, China
| | - Ziyang Wang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, China
| | - Yuyu Cheng
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xuling Chen
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology, Shenzhen 518055, China
| | - Pengfei Li
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology, Shenzhen 518055, China
| | - Peiyuan Yu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology, Shenzhen 518055, China
| | - Wenjun Li
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, China
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11
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Mishra S, Nair SR, Baire B. Recent approaches for the synthesis of pyridines and (iso)quinolines using propargylic Alcohols. Org Biomol Chem 2022; 20:6037-6056. [PMID: 35678139 DOI: 10.1039/d2ob00587e] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Propargylic alcohols are one of the readily available and highly explored building blocks in organic synthesis. They show distinct reactivities compared to simple alcohols and/or alkynes, and hence provide diverse possibilities to develop novel synthetic strategies for the construction of polycyclic systems, including heterocycles. The six-membered heterocycles, pyridines, quinolines, and isoquinolines, are very important privileged structures in medicinal chemistry and drug discovery due to their broad spectrum of biological activities. They are also part of vitamins, nucleic acids, pharmaceuticals, antibiotics, dyes, and agrochemicals. Many synthetic strategies have been developed for the rapid and efficient generation of these cyclic systems. One such strategy is employing the propargylic alcohols as reactants in the form of either a 3-carbon component or 2-carbon unit. Thus, in this review article, we aimed to summarize various approaches to pyridines, quinolines, and isoquinolines from propargylic alcohols. To the best of our knowledge, so far, no focused reviews have appeared on this topic in the literature. Due to the many reports available, we also restricted ourselves to the developments during the past 17 years, i.e., 2005-2021. We strongly believe that this review article provides comprehensive coverage of research articles on the title topic, and will be of great value for the organic synthetic community for further developments in this area of research.
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Affiliation(s)
- Surabhi Mishra
- Indian Institute of Technology Madras, Chennai, Tamil Nadu, 600036, India.
| | - Sindoori R Nair
- Indian Institute of Technology Madras, Chennai, Tamil Nadu, 600036, India.
| | - Beeraiah Baire
- Indian Institute of Technology Madras, Chennai, Tamil Nadu, 600036, India.
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12
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Pandey AR, Tiwari DK, Prakhar A, Mishra DP, Sharma SK. A review towards synthesis of heterocycles using propargyl alcohols and propargyl amines. MONATSHEFTE FUR CHEMIE 2022. [DOI: 10.1007/s00706-022-02927-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Wang J, Lu X, Tan X, Yan Y, Zhang P, Chao S, Liu L, Shang X, Chu Z. Electrophilic Selenocyanogen Cyclization of Alkynes; Synthesis of Benzofurylselenocyanates, Benzothienylselenocyanates and Indolylselenocyanates. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200290] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Jia Wang
- School of Basic Medical Sciences Xinxiang Medical University Xinxiang Henan, 453003 People's Republic of China
| | - Xiao‐Xiao Lu
- School of Basic Medical Sciences Xinxiang Medical University Xinxiang Henan, 453003 People's Republic of China
| | - Xin‐Qiang Tan
- School of Basic Medical Sciences Xinxiang Medical University Xinxiang Henan, 453003 People's Republic of China
| | - Yun‐Hui Yan
- School of Basic Medical Sciences Xinxiang Medical University Xinxiang Henan, 453003 People's Republic of China
| | - Pengbo Zhang
- School of Public Health Xinxiang Medical University Xinxiang Henan 453003 People's Republic of China
| | - Shu‐Jun Chao
- School of Basic Medical Sciences Xinxiang Medical University Xinxiang Henan, 453003 People's Republic of China
| | - Lixia Liu
- School of Basic Medical Sciences Xinxiang Medical University Xinxiang Henan, 453003 People's Republic of China
| | - Xuefang Shang
- School of Basic Medical Sciences Xinxiang Medical University Xinxiang Henan, 453003 People's Republic of China
| | - Zhi‐Li Chu
- School of Basic Medical Sciences Xinxiang Medical University Xinxiang Henan, 453003 People's Republic of China
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14
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Zhu H, Zhou Q, Liu N, Xing J, Yao W, Dou X. Relay Rhodium(I)/Acid Catalysis for Rapid Access to Benzo‐2H‐pyrans and Benzofurans. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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15
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Topolovčan N, Degač M, Čikoš A, Gredičak M. Chemoselective and Regioselective Synthesis of Spiroisoindolinone Indenes via an Intercepted Meyer-Schuster Rearrangement/Intramolecular Friedel-Crafts Alkylation Relay. J Org Chem 2022; 87:3712-3717. [PMID: 35139639 DOI: 10.1021/acs.joc.1c02647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A Brønsted acid-catalyzed reaction between isoindolinone-derived propargylic alcohols and external aromatic nucleophiles for the construction of spiroisoindolinone indenes is described. The reaction proceeds rapidly with a broad range of substrates to generate spiroindenes chemoselectively and regioselectively in moderate to high yields. Key to the success of this transformation is an intercepted Meyer-Schuster rearrangement/intramolecular Friedel-Crafts alkylation relay that offers a modular approach in the synthesis of target compounds.
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Affiliation(s)
- Nikola Topolovčan
- Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| | - Marina Degač
- Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| | - Ana Čikoš
- NMR Centre, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| | - Matija Gredičak
- Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
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16
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Kishore DR, Goel K, Shekhar C, Satyanarayana G. An Access to Benzo[ a]fluorenes, Benzo[ b]fluorenes, and Indenes Triggered by Simple Lewis Acid. J Org Chem 2022; 87:2178-2203. [PMID: 35108008 DOI: 10.1021/acs.joc.1c02724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This report illustrates BF3·OEt2 promoted intramolecular cascade cycloaromatization of 1,7-ynones toward synthesizing structurally diverse benzofluorene scaffolds. Remarkably, the present protocol promotes the formation of two consecutive C-C bonds intramolecularly and undergoes aromatization under mild reaction conditions to afford the tetracyclic benzo[a]fluorene frameworks. Besides, the formation of indenes was observed when 1-bromo-2-iodoarenes are relatively more electron-rich when compared with the one originating from the terminal arylacetylenes, under controlled conditions, wherein triple bond polarity has been just reversed due to the change of electronic effects exerted by the strong +M group of 1-bromo-2-iodoarenes, which is in conjugation to the connected triple bond. The same concept to generate indenes has also been extended by using aliphatic alkyne tethered ynones. Further, it was noticed that 1,7-ynones bearing the more electron-rich 1-bromo-2-iodoarenes than the arene ring arriving from the terminal arylacetylenes lead to benzo[b]fluorenes, under thermodynamic conditions, instead of delivering the benzo[a]fluorenes. In addition, this method features metal-free conditions, easily accessible starting materials, operational simplicity, gram-scale synthesis, and a wide range of substrate scopes.
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Affiliation(s)
- Dakoju Ravi Kishore
- Department of Chemistry, Indian Institute of Technology (IIT), Hyderabad Kandi 502 285, Sangareddy District, Telangana, India
| | - Komal Goel
- Department of Chemistry, Indian Institute of Technology (IIT), Hyderabad Kandi 502 285, Sangareddy District, Telangana, India
| | - Chander Shekhar
- Department of Chemistry, Indian Institute of Technology (IIT), Hyderabad Kandi 502 285, Sangareddy District, Telangana, India
| | - Gedu Satyanarayana
- Department of Chemistry, Indian Institute of Technology (IIT), Hyderabad Kandi 502 285, Sangareddy District, Telangana, India
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17
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Hao MY, Huang MH, Gu XY, Zhang TS, Zhu XT, Hao WJ, Jiang B. Diastereoselective Generation of C 2-Azlactonized 2 H-Chromenes via Brønsted Acid-Catalyzed Oxo-Cyclization of Propargyl Alcohols. J Org Chem 2022; 87:1518-1525. [PMID: 35000383 DOI: 10.1021/acs.joc.1c02299] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A new Brønsted acid-catalyzed oxo-cyclization of propargyl alcohols with azlactones to synthesize C2-azlactonized 2H-chromenes has been established that uses 1,1'-binaphthyl-2,2'-diyl hydrogen phosphate (BiNPO4H) as the catalyst and gives excellent diastereoselectivities (≥19:1 dr) in most cases. This protocol has a high compatibility with various substituents of substrates, offering a catalytic and useful entry to the fabrication of the synthetically important C2-functionalized 2H-chromene scaffold.
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Affiliation(s)
- Meng-Ying Hao
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Min-Hua Huang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Xin-Yu Gu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Tian-Shu Zhang
- School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou 221018, P. R. China
| | - Xiao-Tong Zhu
- Department of Chemistry, Xuzhou Medical University, Xuzhou 221004, People's Republic of China
| | - Wen-Juan Hao
- School of Chemistry and 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 and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
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18
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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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19
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Qian C, Liu M, Sun J, Li P. Chiral phosphoric acid-catalyzed regio- and enantioselective reactions of functionalized propargylic alcohols. Org Chem Front 2022. [DOI: 10.1039/d1qo01864g] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Chiral phosphoric acid has been utilized for covalent activation of propargylic alcohols to act as pre-catalyst. With this activation mode, a range of highly regio- and enantioenriched heterocyclic products could be generated efficiently from racemic propargylic alcohols.
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Affiliation(s)
- Chenxiao Qian
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Meiwen Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Jianwei Sun
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Pengfei Li
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, College of Science, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
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20
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Yin H, Wu Y, Gu X, Feng Z, Wang M, Feng D, Wang M, Cheng Z, Wang S. Synthesis of pyrano[3,2- c]quinolones and furo[3,2- c]quinolones via acid-catalyzed tandem reaction of 4-hydroxy-1-methylquinolin-2(1 H)-one and propargylic alcohols. RSC Adv 2022; 12:21066-21078. [PMID: 35919834 PMCID: PMC9302472 DOI: 10.1039/d2ra03416f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 07/17/2022] [Indexed: 11/28/2022] Open
Abstract
Two acid-catalyzed tandem reactions between 4-hydroxy-1-methylquinolin-2(1H)-one and propargylic alcohols are described. Depending mainly on the propargylic alcohol used, these tandem reactions proceed via either a Friedel–Crafts-type allenylation followed by 6-endo-dig cyclization sequence to form pyrano[3,2-c]quinolones or a Friedel–Crafts-type alkylation and 5-exo-dig ring closure sequence to afford furo[3,2-c]quinolones in moderate-to-high yields. The pyrano[3,2-c]quinolones products could be further transformed to tetracyclic 4,9-dihydro-5H-cyclopenta[lmn]phenanthridin-5-one derivatives. Two acid-catalyzed tandem reactions between 4-hydroxy-1-methylquinolin-2(1H)-one and propargylic alcohols are described.![]()
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Affiliation(s)
- Haiting Yin
- Department of Chemistry, Institute of Synthesis and Application of Medical Materials, Chunhui Scientific Research Interest Group, Wannan Medical College, Wuhu 241002, China
| | - Yunjun Wu
- Department of Chemistry, Institute of Synthesis and Application of Medical Materials, Chunhui Scientific Research Interest Group, Wannan Medical College, Wuhu 241002, China
| | - Xiaoxia Gu
- Department of Chemistry, Institute of Synthesis and Application of Medical Materials, Chunhui Scientific Research Interest Group, Wannan Medical College, Wuhu 241002, China
| | - Zhijun Feng
- Department of Chemistry, Institute of Synthesis and Application of Medical Materials, Chunhui Scientific Research Interest Group, Wannan Medical College, Wuhu 241002, China
| | - Meifang Wang
- Department of Chemistry, Institute of Synthesis and Application of Medical Materials, Chunhui Scientific Research Interest Group, Wannan Medical College, Wuhu 241002, China
- The Key Laboratory of Antiinflammatory and Immune Medicine, Ministry of Education, Anhui Medical University, Hefei 230032, China
| | - Dexiang Feng
- Department of Chemistry, Institute of Synthesis and Application of Medical Materials, Chunhui Scientific Research Interest Group, Wannan Medical College, Wuhu 241002, China
| | - Ming Wang
- Department of Chemistry, Institute of Synthesis and Application of Medical Materials, Chunhui Scientific Research Interest Group, Wannan Medical College, Wuhu 241002, China
| | - Ziyang Cheng
- Department of Chemistry, Institute of Synthesis and Application of Medical Materials, Chunhui Scientific Research Interest Group, Wannan Medical College, Wuhu 241002, China
| | - Shaoyin Wang
- Department of Chemistry, Institute of Synthesis and Application of Medical Materials, Chunhui Scientific Research Interest Group, Wannan Medical College, Wuhu 241002, China
- The Key Laboratory of Antiinflammatory and Immune Medicine, Ministry of Education, Anhui Medical University, Hefei 230032, China
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21
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Zhang Y, Du S, Yang T, Jin F, Zhou J, Cao B, Mao ZJ, Song XR, Xiao Q. Direct and Efficient Synthesis of Tetrasubstituted Allenyl organothiophosphates from Propargylic Alcohols under Catalyst- and Additive-Free Conditions. Org Chem Front 2022. [DOI: 10.1039/d2qo00455k] [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
An environment-friendly approach that affords tetrasubstituted allenyl organothiophosphates containing highly congested carbon centers from easily prepared propargylic alcohols and phosphorothioic acids [(RO)2P(O)SH] with water as the only by-product is developed....
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22
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Jiang S, Ma H, Yang R, Song XR, Xiao Q. Recent advances in the cascade reactions of enynols/diynols for the synthesis of carbo- and heterocycles. Org Chem Front 2022. [DOI: 10.1039/d2qo01154a] [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
This review summaries a view of the advances in the cascade reactions of enynols/diynols for the construction of carbo- and heterocycles.
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Affiliation(s)
- Shimin Jiang
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Haojie Ma
- Key Laboratory of New Energy & New Functional Materials, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi, 716000, P. R. China
| | - Ruchun Yang
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Xian-Rong Song
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Qiang Xiao
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
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23
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Cai Z, Feng X, Zhang Y, Lu C, Han Y, Zhao J. Transition‐Metal‐Free
Catalyzed Dehydrative Coupling of Quinoline and Isoquinoline
N
‐Oxides
with Propargylic Alcohols. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202100687] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Zhao‐Nan Cai
- School of Chemical Engineering and Technology, Hebei University of Technology Tianjin 300130 China
| | - Xiang‐Xuan Feng
- School of Chemical Engineering and Technology, Hebei University of Technology Tianjin 300130 China
| | - Yuecheng Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology Tianjin 300130 China
| | - Cong‐Cong Lu
- School of Chemical Engineering and Technology, Hebei University of Technology Tianjin 300130 China
| | - Ya‐Ping Han
- School of Chemical Engineering and Technology, Hebei University of Technology Tianjin 300130 China
| | - Jiquan Zhao
- School of Chemical Engineering and Technology, Hebei University of Technology Tianjin 300130 China
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24
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Wu Y, Yue Z, Qian C, Chen X, Li F, Li P, Li W. Organocatalytic Enantioselective Construction of Axially Chiral Tetrasubstituted Allenes via 1,6‐Addition of Alkynyl Indole Imine Methides with 2‐Substituted Indoles. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100724] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yu Wu
- Department of Medicinal Chemistry, School of Pharmacy Qingdao University Qingdao Shandong 266021 P. R. China
| | - Zhibin Yue
- Department of Medicinal Chemistry, School of Pharmacy Qingdao University Qingdao Shandong 266021 P. R. China
| | - Chenxiao Qian
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis College of Science Southern University of Science and Technology Shenzhen 518055 P. R. China
| | - Xuling Chen
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis College of Science Southern University of Science and Technology Shenzhen 518055 P. R. China
| | - Fushuai Li
- Department of Medicinal Chemistry, School of Pharmacy Qingdao University Qingdao Shandong 266021 P. R. China
| | - Pengfei Li
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis College of Science Southern University of Science and Technology Shenzhen 518055 P. R. China
| | - Wenjun Li
- Department of Medicinal Chemistry, School of Pharmacy Qingdao University Qingdao Shandong 266021 P. R. China
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25
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Wang J, Wang Y, Liu Y, Yan X, Yan Y, Chao S, Shang X, Ni T, Zhou P. Synthesis of Isoquinolylselenocyanates and Quinolylselenocyanates via Electrophilic Selenocyanogen Cyclization Induced by Pseudohalogen (SeCN)
2
Generated
in situ. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101169] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Jia Wang
- School of Basic Medical Sciences Xinxiang Medical University Xinxiang Henan 453003 People's Republic of China
| | - Yun‐Zhe Wang
- School of Pharmaceutical Sciences Zhengzhou University Zhengzhou Henan 450001 People's Republic of China
| | - Yu‐Jie Liu
- College of Pharmacy Xinxiang Medical University Xinxiang Henan 453003 People's Republic of China
| | - Xin‐Xin Yan
- College of Pharmacy Xinxiang Medical University Xinxiang Henan 453003 People's Republic of China
| | - Yun‐Hui Yan
- School of Basic Medical Sciences Xinxiang Medical University Xinxiang Henan 453003 People's Republic of China
| | - Shu‐Jun Chao
- School of Basic Medical Sciences Xinxiang Medical University Xinxiang Henan 453003 People's Republic of China
| | - Xuefang Shang
- School of Basic Medical Sciences Xinxiang Medical University Xinxiang Henan 453003 People's Republic of China
| | - Tianjun Ni
- School of Basic Medical Sciences Xinxiang Medical University Xinxiang Henan 453003 People's Republic of China
| | - Ping‐Xin Zhou
- School of Basic Medical Sciences Xinxiang Medical University Xinxiang Henan 453003 People's Republic of China
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26
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Nanda SK, Mallik R. Transition Metal-Catalyzed Hydroalkoxylation of Alkynes: An Overview. Chemistry 2021; 27:15571-15604. [PMID: 34343374 DOI: 10.1002/chem.202102194] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Indexed: 01/12/2023]
Abstract
Oxygen-bearing motifs, mainly the congener heterocycles are ubiquitous due to their presence in various natural products and bioactive scaffolds. Although in literature, several strategies have been developed for their synthesis, hydroalkoxylation of alkynes has come forward as a method of choice and has been used extensively. In particular, hydroalkoxylation of alkynes has gained enormous attention from the synthetic community due to the rapid access to a very useful and reactive synthetic intermediate like 'enol ether'. Furthermore, to manifold the utility of these methods, reports have been developed elaborating the generation of 'enol ether' using hydroalkoxylation and their usage in various reactions in cascade or tandem manner. This review focuses on recent development on the hydroalkoxylation of alkynes for the synthesis of oxygen-containing entities.
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Affiliation(s)
- Santosh K Nanda
- Department of Chemistry, School of Applied Science, Centurion University of Technology and Management Paralakhemundi, Odisha, 761211, India
| | - Rosy Mallik
- Department of Chemistry, School of Applied Science, Centurion University of Technology and Management Paralakhemundi, Odisha, 761211, India
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27
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Yang LF, Wang QA, Li JH. Dual Palladium/Copper-Catalyzed anti-Selective Intermolecular Allenylsilylation of Terminal Alkynes: Entry to ( E)-Silyl Enallenes. Org Lett 2021; 23:6553-6557. [PMID: 34374538 DOI: 10.1021/acs.orglett.1c02364] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A palladium-/copper-cocatalyzed three-component trans-allenylsilylation of terminal alkynes with propargyl acetates and PhMe2SiBpin is described, which is driven by the regioselective allenylation of the alkyne with propargyl acetates and then silylation. This method allows the simultaneous incorporation of an allene and silicon across the C≡C bond and provides a highly chemo-, regio-, and stereoselective alkyne difunctionalization route to the synthesis of valuable (E)-silyl enallenes. The utility of this method is highlighted by late-stage derivatization of bioactive compounds.
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Affiliation(s)
- Liang-Feng Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, People's Republic of China.,Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, People's Republic of China
| | - Qiu-An Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, People's Republic of China
| | - Jin-Heng Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, People's Republic of China.,Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, People's Republic of China.,State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People's Republic of China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 475004, People's Republic of China
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28
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Chen L, Liu X, Zhang J, Duan L, Wen Z, Ni H. Relay Cu(I)/Brønsted Base Catalysis for
Phospha
‐Michael Addition/5‐
exo
‐
dig
Cyclization/Isomerization of
in
situ
Formed
aza
‐Alkynyl
o‐
quinone methides with P(O)−H compounds to C3‐Phosphorylated Indoles. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100275] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Long Chen
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics School of Pharmacy Chengdu University 2025 Chengluo Avenue Chengdu 610016 People's Republic of China
| | - Xiao‐Yan Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics School of Pharmacy Chengdu University 2025 Chengluo Avenue Chengdu 610016 People's Republic of China
| | - Jing Zhang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics School of Pharmacy Chengdu University 2025 Chengluo Avenue Chengdu 610016 People's Republic of China
| | - Li Duan
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics School of Pharmacy Chengdu University 2025 Chengluo Avenue Chengdu 610016 People's Republic of China
| | - Zhong Wen
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics School of Pharmacy Chengdu University 2025 Chengluo Avenue Chengdu 610016 People's Republic of China
| | - Hai‐Liang Ni
- College of Chemistry and Materials Science Sichuan Normal University 5 Jing An Road Chengdu 610066 People's Republic of China
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29
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Du S, Zhou AX, Yang R, Song XR, Xiao Q. Recent advances in the direct transformation of propargylic alcohols to allenes. Org Chem Front 2021. [DOI: 10.1039/d1qo01151k] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review summaries a view of the advances in the direct transformation of propargylic alcohols to functionalized allenes.
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Affiliation(s)
- Sha Du
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - An-Xi Zhou
- Key Laboratory of Applied Organic Chemistry, Higher Institutions of Jiangxi Province, Shangrao Normal University, Shangrao 334000, China
| | - Ruchun Yang
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Xian-Rong Song
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Qiang Xiao
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
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30
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Rajai-Daryasarei S, Gohari MH, Mohammadi N. Reactions involving aryl methyl ketone and molecular iodine: a powerful tool in the one-pot synthesis of heterocycles. NEW J CHEM 2021. [DOI: 10.1039/d1nj03572j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The preparation of heterocyclic compounds has attracted great attention in organic chemistry because of their extensive application in the field of bioactive molecules, materials science, and natural products.
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Affiliation(s)
| | | | - Narges Mohammadi
- School of Chemistry, College of Science, University of Tehran, 14155-6455 Tehran, Iran
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