1
|
Zhang X, Zhang J, Liu Z, Bi W, Shen J, Li G. Efficient Solvent-Free Synthesis of Indolizines Using CuBr Catalyst from Pyridine, Acetophenone, and Electron-Deficient Alkenes. Molecules 2024; 29:2061. [PMID: 38731552 PMCID: PMC11085153 DOI: 10.3390/molecules29092061] [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: 03/26/2024] [Revised: 04/20/2024] [Accepted: 04/28/2024] [Indexed: 05/13/2024] Open
Abstract
Herein, we have developed a new approach for the synthesis of indolizine via Cu-catalyzed reaction of pyridine, acetophenone, and nitroolefin under mild conditions in high yields. This reaction involved the formation of C-N and C-C bonds and new indolizine compounds with high stereoselectivity and excellent functional group tolerance.
Collapse
Affiliation(s)
- Xueguo Zhang
- Department of Materials Science and Engineering, Liaocheng University, Liaocheng 252059, China
| | | | | | | | | | - Guang Li
- Department of Materials Science and Engineering, Liaocheng University, Liaocheng 252059, China
| |
Collapse
|
2
|
Zhang C, Wang W, Zhu X, Chen L, Luo H, Guo M, Liu D, Liu F, Zhang H, Li Q, Lin J. Synthesis of Indolizines via Tf 2O-Mediated Cascade Reaction of Pyridyl-enaminones with Thiophenols/Thioalcohols. Org Lett 2023; 25:1192-1197. [PMID: 36779678 DOI: 10.1021/acs.orglett.3c00177] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
A cost-effective, highly regioselective and metal-free version for the synthesis of indolizine derivatives by means of Tf2O-mediated cascade reaction of pyridyl-enaminones and thiophenols/thioalcohols under mild reaction conditions has been reported. Diverse electron-rich indolizine derivatives could be obtained in up to 94% yield via the selective 1,4-addition of vinyl iminium triflate tandem cyclization/aromatization, which allowed the simultaneous construction of C-N and C-S/and one example of C-Se bonds.
Collapse
Affiliation(s)
- Changyuan Zhang
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, College of Chemistry and Bio-engineering, Yichun University, Yichun, 336000, P.R. China
| | - Wei Wang
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, College of Chemistry and Bio-engineering, Yichun University, Yichun, 336000, P.R. China
| | - Xuncheng Zhu
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, College of Chemistry and Bio-engineering, Yichun University, Yichun, 336000, P.R. China
| | - Lulu Chen
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, College of Chemistry and Bio-engineering, Yichun University, Yichun, 336000, P.R. China
| | - Hejiang Luo
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, P.R. China
| | - Mengping Guo
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, College of Chemistry and Bio-engineering, Yichun University, Yichun, 336000, P.R. China
| | - Dan Liu
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, College of Chemistry and Bio-engineering, Yichun University, Yichun, 336000, P.R. China
| | - Fan Liu
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, College of Chemistry and Bio-engineering, Yichun University, Yichun, 336000, P.R. China
| | - Huisheng Zhang
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, College of Chemistry and Bio-engineering, Yichun University, Yichun, 336000, P.R. China
| | - Qi Li
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, College of Chemistry and Bio-engineering, Yichun University, Yichun, 336000, P.R. China
| | - Jianping Lin
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, College of Chemistry and Bio-engineering, Yichun University, Yichun, 336000, P.R. China
| |
Collapse
|
3
|
Lu MZ, Goh J, Maraswami M, Jia Z, Tian JS, Loh TP. Recent Advances in Alkenyl sp 2 C-H and C-F Bond Functionalizations: Scope, Mechanism, and Applications. Chem Rev 2022; 122:17479-17646. [PMID: 36240299 DOI: 10.1021/acs.chemrev.2c00032] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Alkenes and their derivatives are featured widely in a variety of natural products, pharmaceuticals, and advanced materials. Significant efforts have been made toward the development of new and practical methods to access this important class of compounds by selectively activating the alkenyl C(sp2)-H bonds in recent years. In this comprehensive review, we describe the state-of-the-art strategies for the direct functionalization of alkenyl sp2 C-H and C-F bonds until June 2022. Moreover, metal-free, photoredox, and electrochemical strategies are also covered. For clarity, this review has been divided into two parts; the first part focuses on currently available alkenyl sp2 C-H functionalization methods using different alkene derivatives as the starting materials, and the second part describes the alkenyl sp2 C-F bond functionalization using easily accessible gem-difluoroalkenes as the starting material. This review includes the scope, limitations, mechanistic studies, stereoselective control (using directing groups as well as metal-migration strategies), and their applications to complex molecule synthesis where appropriate. Overall, this comprehensive review aims to document the considerable advancements, current status, and emerging work by critically summarizing the contributions of researchers working in this fascinating area and is expected to stimulate novel, innovative, and broadly applicable strategies for alkenyl sp2 C-H and C-F bond functionalizations in the coming years.
Collapse
Affiliation(s)
- Ming-Zhu Lu
- College of Advanced Interdisciplinary Science and Technology, Henan University of Technology, Zhengzhou 450001, China.,School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore 637371, Singapore
| | - Jeffrey Goh
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore 637371, Singapore
| | - Manikantha Maraswami
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore 637371, Singapore
| | - Zhenhua Jia
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Jie-Sheng Tian
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Teck-Peng Loh
- College of Advanced Interdisciplinary Science and Technology, Henan University of Technology, Zhengzhou 450001, China.,School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore 637371, Singapore.,Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| |
Collapse
|
4
|
Zhao P, Yu ZC, Wang LF, Zhou Y, Wu YD, Ma Y, Wu AX. I 2-Promoted In Situ Cyclization-Rethiolation Reaction: Synthesis of 2-Aliphatic- or Aromatic-Substituted Indolizines. J Org Chem 2022; 87:15197-15209. [PMID: 36305554 DOI: 10.1021/acs.joc.2c01724] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
An efficient I2-promoted one-pot one-step three-component reaction for the synthesis of sulfhydryl indolizines from methyl ketones, 2-pyridylacetate derivatives, and sulfonyl hydrazides via an in situ cyclization-rethiolation strategy has been developed. This protocol shows excellent substrate compatibility, including for chain and cyclic aliphatic methyl ketones, natural product pregnenolone acetate, and phosphorus-containing methyl ketones, affording a series of valuable aliphatic-substituted indolizines in good yields.
Collapse
Affiliation(s)
- Peng Zhao
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Taizhou 318000 Zhejiang, China.,Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Zhi-Cheng Yu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Ling-Feng Wang
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Taizhou 318000 Zhejiang, China
| | - You Zhou
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Yan-Dong Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Yongmin Ma
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Taizhou 318000 Zhejiang, China
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| |
Collapse
|
5
|
Li X, Chen Z, Chen W, Xie X, Zhou H, Liao Y, Yu F, Huang J. B 2pin 2-Mediated Cascade Cyclization/Aromatization Reaction: Facial Access to Functionalized Indolizines. Org Lett 2022; 24:7372-7377. [PMID: 36173232 DOI: 10.1021/acs.orglett.2c02905] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Herein, a B2pin2-mediated radical cascade cyclization/aromatization reaction of enaminone with pyridine is described. This strategy provides a practical way for the construction of valuable functionalized indolizines under metal-, external oxidant-, and base-free conditions, which could be compatible with various kinds of functional groups, such as halogen, π-system, heterocycle, ferrocenyl, etc. A preliminary mechanism investigation indicated that the pyridine-boryl radical formed in situ triggered the reaction to occur.
Collapse
Affiliation(s)
- Xiaoning Li
- School of Pharmacy, Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou 341000, PR China
| | - Zunsheng Chen
- School of Pharmacy, Gannan Medical University, Ganzhou 341000, PR China
| | - Weiming Chen
- School of Pharmacy, Gannan Medical University, Ganzhou 341000, PR China
| | - Xin Xie
- School of Pharmacy, Gannan Medical University, Ganzhou 341000, PR China
| | - Hui Zhou
- School of Pharmacy, Gannan Medical University, Ganzhou 341000, PR China
| | - Yingmei Liao
- School of Pharmacy, Gannan Medical University, Ganzhou 341000, PR China
| | - Fuchao Yu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, PR China
| | - Jiuzhong Huang
- School of Pharmacy, Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou 341000, PR China
| |
Collapse
|
6
|
Tu Y, Shi P, Bolm C. Visible-Light-Mediated α-Ketoacylations of NH-Sulfoximines with gem-Difluoroalkenes. Org Lett 2022; 24:907-911. [PMID: 35040650 DOI: 10.1021/acs.orglett.1c04254] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A photochemical approach for the preparation of α-keto-N-acyl sulfoximines from NH sulfoximines and gem-difluoroalkenes has been developed. In the presence of NBS, the reactions proceed in air without the need of a photocatalyst or additional oxidant. Results of mechanistic studies suggest that the two oxygens in the products stem from water and dioxygen.
Collapse
Affiliation(s)
- Yongliang Tu
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Peng Shi
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Carsten Bolm
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| |
Collapse
|
7
|
Zhang YY, Li L, Ma AJ, Wang WF, Peng JB. Base-promoted [4 + 2] annulation of pyrrole-2-carbaldehyde derivatives with β,γ-unsaturated α-ketoesters: syntheses of 5,6-dihydroindolizines. Org Biomol Chem 2022; 20:8633-8637. [DOI: 10.1039/d2ob01903e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A base-promoted [4 + 2] annulation of pyrrole-2-carbaldehyde derivatives with β,γ-unsaturated α-ketoesters for the syntheses of multisubstituted 5,6-dihydroindolizines was developed.
Collapse
Affiliation(s)
- You-Ya Zhang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China
| | - Lin Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China
| | - Ai-Jun Ma
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China
| | - Wei-Feng Wang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jin-Bao Peng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China
| |
Collapse
|
8
|
Ge D, Chu XQ. Multiple-fold C–F bond functionalization for the synthesis of (hetero)cyclic compounds: fluorine as a detachable chemical handle. Org Chem Front 2022. [DOI: 10.1039/d1qo01749g] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We highlighted the recent advances in the field of multiple-fold C–F bond functionalization for the synthesis of (hetero)cyclic compounds.
Collapse
Affiliation(s)
- Danhua Ge
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Xue-Qiang Chu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| |
Collapse
|
9
|
Tabolin AA. Fluoroheterocycle formation using fluoroalkynes and their synthetic equivalents. ADVANCES IN HETEROCYCLIC CHEMISTRY 2022. [DOI: 10.1016/bs.aihch.2022.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
10
|
Miao CB, Guan HR, Tang Y, Wang K, Ren WL, Lyu X, Yao C, Yang HT. Copper-Catalyzed Bisannulations of Malonate-Tethered O-Acyl Oximes with Pyridine, Pyrazine, Pyridazine, and Quinoline Derivatives for the Construction of Dihydroindolizine-Fused Pyrrolidinones and Analogues. Org Lett 2021; 23:8699-8704. [PMID: 34723547 DOI: 10.1021/acs.orglett.1c03078] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A copper-catalyzed bisannulation reaction of malonate-tethered O-acyl oximes with pyridine, pyrazine, pyridazine, and quinoline derivatives has been developed for the concise synthesis of structurally novel dihydroindolizine-fused pyrrolidinones and their analogues. The present reaction shows excellent regioselectivity and stereoselectivity. Theoretical calculations reveal that the coordination effect of the carbonyl group in the nucleophilic substrate determines the excellent regioselectivity. Further functionalization of the generated dihydroindolizine-fused pyrrolidinone could be easily realized through substitution, Michael addition, selective aminolysis, and hydrolysis reactions.
Collapse
Affiliation(s)
- Chun-Bao Miao
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, P. R. China
| | - Hong-Rong Guan
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, P. R. China
| | - YiHan Tang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, P. R. China
| | - Kun Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, P. R. China
| | - Wen-Long Ren
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, P. R. China
| | | | - ChangSheng Yao
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P. R. China
| | - Hai-Tao Yang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, P. R. China
| |
Collapse
|
11
|
Yang L, Zhang Y, Deng J, Ma A, Zhang X, Zhang S, Peng J. Oxidative [3+2] Annulation of Pyridinium Salts with
gem
‐Difluoroalkenes: Synthesis of 2‐Fluoroindolizines. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100253] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Li–Miao Yang
- School of Biotechnology and Health Sciences Wuyi University Jiangmen, Guangdong 529020 P. R. China
| | - You‐Ya Zhang
- School of Biotechnology and Health Sciences Wuyi University Jiangmen, Guangdong 529020 P. R. China
| | - Jing‐Tong Deng
- School of Biotechnology and Health Sciences Wuyi University Jiangmen, Guangdong 529020 P. R. China
| | - Ai‐Jun Ma
- School of Biotechnology and Health Sciences Wuyi University Jiangmen, Guangdong 529020 P. R. China
| | - Xiang‐Zhi Zhang
- School of Biotechnology and Health Sciences Wuyi University Jiangmen, Guangdong 529020 P. R. China
| | - Shu‐Yu Zhang
- School of Biotechnology and Health Sciences Wuyi University Jiangmen, Guangdong 529020 P. R. China
- Shanghai Key Laboratory for Molecular Engineer of Chiral Drugs & School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Jin‐Bao Peng
- School of Biotechnology and Health Sciences Wuyi University Jiangmen, Guangdong 529020 P. R. China
| |
Collapse
|
12
|
He H, Nie J, Duan Y, Lin J, Yan S. An environmentally benign cascade reaction of 1,2,3-indantriones with ethyl 2-(pyridine-2-yl)acetates for site-selective synthesis of 5H-isochromeno[4,3-b]indolizin-5-ones. GREEN SYNTHESIS AND CATALYSIS 2021. [DOI: 10.1016/j.gresc.2021.01.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
13
|
Jin S, Wang L, Han H, Liu X, Bu Z, Wang Q. Assembly of functionalized π-extended indolizine polycycles through dearomative [3+2] cycloaddition/oxidative decarbonylation. Chem Commun (Camb) 2021; 57:359-362. [PMID: 33319883 DOI: 10.1039/d0cc07116a] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Reported herein is an unexpected construction of functionalized π-extended indolizine polycycles through a one-pot two-step cascade process comprising the base-promoted dearomative [3+2] cycloaddition of quinilinium salts and 3-alkenyl oxindoles, followed by a DDQ-mediated oxidative decarbonylation. Moreover, we could achieve the substrate-controlled diverse synthesis of structurally strained cyclopropane spirooxindole by using pyridinium salts as starting materials.
Collapse
Affiliation(s)
- Shaojing Jin
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China.
| | | | | | | | | | | |
Collapse
|
14
|
Duan G, Liu H, Zhang L, Yuan C, Li Y, Ge Y. Access to 6-hydroxy indolizines and related imidazo[1,5-a]pyridines through the SN2 substitution/condensation/tautomerization cascade process. RSC Adv 2021; 11:25624-25627. [PMID: 35478892 PMCID: PMC9036982 DOI: 10.1039/d1ra04425g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 07/19/2021] [Indexed: 11/21/2022] Open
Abstract
A simple and efficient cascade reaction was developed for the construction of hydroxy substituted indolizines from pyrrole-2-carbaldehydes and commercially available 4-halogenated acetoacetic esters.
Collapse
Affiliation(s)
- Guiyun Duan
- Department of Pharmacy
- Shandong First Medical University
- Shandong Academy of Medical Sciences
- Taian
- P. R. China
| | - Hao Liu
- Department of Pharmacy
- Shandong First Medical University
- Shandong Academy of Medical Sciences
- Taian
- P. R. China
| | - Liqing Zhang
- Department of Pharmacy
- Shandong First Medical University
- Shandong Academy of Medical Sciences
- Taian
- P. R. China
| | - Chunhao Yuan
- Department of Pharmacy
- Shandong First Medical University
- Shandong Academy of Medical Sciences
- Taian
- P. R. China
| | - Yongchao Li
- Department of Pharmacy
- Shandong First Medical University
- Shandong Academy of Medical Sciences
- Taian
- P. R. China
| | - Yanqing Ge
- Department of Pharmacy
- Shandong First Medical University
- Shandong Academy of Medical Sciences
- Taian
- P. R. China
| |
Collapse
|
15
|
Jiang X, Wang G, Zheng Z, Yu X, Hong Y, Xia H, Yu C. Autocatalytic Synthesis of Thioesters via Thiocarbonylation of gem-Difluoroalkenes. Org Lett 2020; 22:9762-9766. [PMID: 33285069 DOI: 10.1021/acs.orglett.0c03860] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herein, we report a new method for the synthesis of acyethanethioates via thiocarbonylation of gem-difluoroalkenes with thiols. This reaction provides a new pathway to prepare thioesters under mild conditions without the use of any additives. Mechanistic studies revealed that in situ generated HF facilitated the C-F bond cleavage in an autocatalytic manner.
Collapse
Affiliation(s)
- Xinpeng Jiang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Guan Wang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Zicong Zheng
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Xiaohui Yu
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Ye Hong
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Haoqi Xia
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Chuanming Yu
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| |
Collapse
|