1
|
Huang M, Deng L, Lao T, Zhang Z, Su Z, Yu Y, Cao H. Dehydrogenation Coupling and [3 + 2] Cycloaddition of Indolizines with Allenes in the Presence of Piezoelectric Materials under Ball Milling Conditions. J Org Chem 2024; 89:9733-9743. [PMID: 38959385 DOI: 10.1021/acs.joc.3c02404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2024]
Abstract
A wide range of indolizines with allenes proceeded smoothly under mechanochemical-induced conditions via [3 + 2] annulation process, affording various substituted pyrrolo[2,1,5-cd]indolizines with good yield. The reaction efficiency was greatly improved by using a piezoelectric material as the charge transfer catalyst. The photophysical properties of the resulting pyrrolo[2,1,5-cd]indolizine was characterized.
Collapse
Affiliation(s)
- Mingzhou Huang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering and Technology Research Centre, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Lichan Deng
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering and Technology Research Centre, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Tianfeng Lao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering and Technology Research Centre, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Ziwu Zhang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering and Technology Research Centre, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Zhengquan Su
- Guangdong Engineering Research Centre of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Centre of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Yue Yu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering and Technology Research Centre, Guangdong Pharmaceutical University, Zhongshan 528458, China
- Guangdong Pharmaceutical University-University of Hong Kong Joint Biomedical Innovation Platform, Zhongshan 528437, China
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering and Technology Research Centre, Guangdong Pharmaceutical University, Zhongshan 528458, China
- Guangdong Pharmaceutical University-University of Hong Kong Joint Biomedical Innovation Platform, Zhongshan 528437, China
| |
Collapse
|
2
|
Kumari A, Patanvadiya DJ, Jain A, Patra R, Paranjothy M, Rana NK. Pyridinium Ylide-Mediated Diastereoselective Synthesis of Spirocyclopropanyl-pyrazolones via Cascade Michael/Substitution Reaction. J Org Chem 2024. [PMID: 38742411 DOI: 10.1021/acs.joc.3c02879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
We have devised a highly diastereoselective formal [2 + 1] annulation reaction of arylidene/alkylidine-pyrazolones with in situ-generated supported as well as standard pyridinium ylides to construct spirocyclopropanyl-pyrazolones. The cascade approach exhibits a wide range of functional group tolerance, gram-scale capability, and substrate versatility. A diverse range of spirocyclic cyclopropanes was synthesized extensively with both mediators, and the supported pyridine was reused in subsequent cycles. Density functional theory calculations confirmed the formation of spirocyclopropane as the lower energy pathway.
Collapse
Affiliation(s)
- Akanksha Kumari
- Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur, Rajasthan 342030, India
| | | | - Anshul Jain
- Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur, Rajasthan 342030, India
| | - Ranjan Patra
- Amity Institute of Click Chemistry Research & Studies, Amity University, Noida, Uttar Pradesh 201303, India
| | - Manikandan Paranjothy
- Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur, Rajasthan 342030, India
| | - Nirmal K Rana
- Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur, Rajasthan 342030, India
| |
Collapse
|
3
|
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
|
4
|
Liu Z, Li Y, Fan W, Huang D. Iodine-Mediated Heterocyclization for the Synthesis of 6-Alkylthio-1,3,5-triazine-2,4-diamines from N-Alkylpyridinium Salts and NH 4SCN. J Org Chem 2024; 89:676-680. [PMID: 38113931 DOI: 10.1021/acs.joc.3c02517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
An iodine-mediated method for the synthesis of 6-alkylthio-1,3,5-triazine-2,4-diamines by the reaction of N-alkylpyridinium salts and NH4SCN in air is reported. Twenty-seven compounds were obtained under the standard conditions. Pyridinium salts work as benzyl-group transfer reagents to promote the formation of the CBn-SSCN bond and thereby the construction of the triazine skeleton. A plausible mechanism is proposed based on the experimental results and literature survey.
Collapse
Affiliation(s)
- Zhiqi Liu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- Fujian Normal University, College of Chemistry and Materials Science, Fuzhou 350007, China
| | - Yinghua Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Weibin Fan
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Deguang Huang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- Fujian Normal University, College of Chemistry and Materials Science, Fuzhou 350007, China
| |
Collapse
|
5
|
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
|
6
|
Choyal M, Agarwal LK, Gupta N. Regioselective Synthesis of Functionalized Indolizines under Mild Conditions. ORG PREP PROCED INT 2023. [DOI: 10.1080/00304948.2022.2162317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Manisha Choyal
- Centre for Advanced Study, Department of Chemistry, University of Rajasthan, Jaipur, India
| | - Lokesh Kr. Agarwal
- Centre for Advanced Study, Department of Chemistry, University of Rajasthan, Jaipur, India
- Department of Chemistry, MLS University, Udaipur, India
| | - Neelima Gupta
- Centre for Advanced Study, Department of Chemistry, University of Rajasthan, Jaipur, India
| |
Collapse
|
7
|
Zhao L, Li W, Liu J, Ni L, Liu Z, Shen H, Cao H, Liu X. Transition metal-free annulative vinylene transfer via the 1,3-dipolar reaction of N-ylides: access to benzo-fused indolizines. Org Biomol Chem 2022; 20:9604-9608. [PMID: 36412532 DOI: 10.1039/d2ob01846b] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
An efficient metal-free annulative vinylene transfer protocol for the synthesis of benzo-fused indolizines via 1,3-dipolar cycloadditions of N-ylides with vinylene carbonate has been developed. Vinylene carbonate serves as an acetylene surrogate without any external oxidant involved. This transformation leads to the direct construction of versatile benzo-fused indolizine derivatives in moderate to good yields.
Collapse
Affiliation(s)
- Limin Zhao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
| | - Wen Li
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
| | - Jiali Liu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
| | - Linying Ni
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
| | - Zhihao Liu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
| | - Hao Shen
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
| | - Xiang Liu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
| |
Collapse
|
8
|
Dinitro Anacardic Acid Copper(II) Complex—A Bio‐based Catalyst for Room Temperature Synthesis of Indolizine. ChemistrySelect 2022. [DOI: 10.1002/slct.202202420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
9
|
Lv KH, Zhao QS, Zhao KH, Yang JM, Yan SJ. Cu-Catalyzed Oxidative [3 + 2] Annulation of 2-(Pyridine-2-yl)acetates with Maleimides: Synthesis of 1 H-Pyrrolo[3,4- b]indolizine-1,3-diones. J Org Chem 2022; 87:15301-15311. [DOI: 10.1021/acs.joc.2c01879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Kai-Hong Lv
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Qing-Sheng Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Ke-Hua Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Jia-Ming Yang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Sheng-Jiao Yan
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| |
Collapse
|
10
|
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
|
11
|
Wang F, Fu R, Chen J, Rong J, Wang E, Zhang J, Zhang Z, Jiang Y. Metal-free synthesis of gem-difluorinated heterocycles from enaminones and difluorocarbene precursors. Chem Commun (Camb) 2022; 58:3477-3480. [PMID: 35191446 DOI: 10.1039/d2cc00383j] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A cascade strategy to synthesise gem-difluorinated 2H-furans from reactions of BrCF2CO2Et with enaminones has been described. The reactions tolerate a wide variety of functional groups under metal-free conditions. An active aminocyclopropane is proposed to be a key intermediate through the cyclopropanation of difluorocarbene with enaminones, which further triggers a regioselective C-C bond cleavage in situ to afford the corresponding gem-difluorinated 2H-furans.
Collapse
Affiliation(s)
- Fei Wang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, 211816, China.
| | - Rui Fu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, 211816, China.
| | - Jie Chen
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, 211816, China. .,Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education, Guizhou University, Huaxi District, Guiyang, 550025, China
| | - Jiaxin Rong
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, 211816, China.
| | - Enfu Wang
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education, Guizhou University, Huaxi District, Guiyang, 550025, China
| | - Jian Zhang
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education, Guizhou University, Huaxi District, Guiyang, 550025, China
| | - Zhengyu Zhang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, 211816, China.
| | - Yaojia Jiang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, 211816, China. .,Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education, Guizhou University, Huaxi District, Guiyang, 550025, China
| |
Collapse
|
12
|
Duan J, Choy PY, Gan KB, Kwong FY. N-Difluoromethylation of N-pyridyl-substituted anilines with ethyl bromodifluoroacetate. Org Biomol Chem 2022; 20:1883-1887. [PMID: 35171189 DOI: 10.1039/d2ob00119e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A general protocol for N-difluoromethylation of aniline derivatives is developed. Commercially available ethyl bromodifluoroacetate serves as a difluorocarbene source in the presence of a base. This carbene surrogate is attractive owing to its favorable stability, environmental friendliness and inexpensiveness. This reaction system features notable operational simplicity (bench top-grade solvents can be used without any pre-drying and do not require inert atmosphere protection). A wide range of functional groups in aniline derivatives are well-tolerated, and good-to-excellent product yields are generally obtained.
Collapse
Affiliation(s)
- Jindian Duan
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P.R. China.,College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Pui Ying Choy
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, P.R. China.
| | - Kin Boon Gan
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, P.R. China.
| | - Fuk Yee Kwong
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P.R. China.,Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, P.R. China.
| |
Collapse
|
13
|
Malviya BK, Jassal AK, Karnatak M, Verma VP, Sharma S. Electro-Oxidative sp 3 C-H Bond Functionalization and Annulation Cascade: Synthesis of Novel Heterocyclic Substituted Indolizines. J Org Chem 2022; 87:2898-2911. [PMID: 35104140 DOI: 10.1021/acs.joc.1c02773] [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
Indolizine derivatives are prevalent in many synthetic intermediates, pharmaceuticals, and organic materials. Herein, we report a novel electro-oxidative cascade cyclization reaction that uses electricity as the primary energy input to promote the reaction, leading to a series of heterocyclic substituted indolizine derivatives under exogenous-oxidant-free conditions. It is noteworthy that this electrochemical method provides a novel strategy for generating heterocyclic diversity of quinazolinones and quinolines on indolizines. In addition, the sole byproduct in the reaction was molecular hydrogen.
Collapse
Affiliation(s)
- Bhanwar Kumar Malviya
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur, Rajasthan 313001, India
| | - Amanpreet Kaur Jassal
- Department of Chemistry, Indian Institute of Technology, Delhi, New Delhi 110016, India
| | - Manvika Karnatak
- Department of Chemistry, Banasthali University, Newai-Jodhpuriya Road, Vanasthali, Rajasthan 304022, India
| | - Ved Prakash Verma
- Department of Chemistry, Banasthali University, Newai-Jodhpuriya Road, Vanasthali, Rajasthan 304022, India
| | - Siddharth Sharma
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur, Rajasthan 313001, India
| |
Collapse
|
14
|
Huang M, Deng L, Lao T, Zhang Z, Su Z, Yu Y, Cao H. Mechanochemically Induced Dehydrogenation Coupling and [3+2] Cycloaddition of Indolizines with Allenes Using Piezoelectric Materials. J Org Chem 2022; 87:3265-3275. [PMID: 35080180 DOI: 10.1021/acs.joc.1c02940] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A wide range of indolizines with allenes proceeded smoothly under mechanochemically induced conditions via a [3+2] annulation process, affording various substituted pyrrolo[2,1,5-cd]indolizines in good yields. The reaction efficiency was greatly improved by using piezoelectric material as the charge transfer catalyst. The photophysical properties of the resulting pyrrolo[2,1,5-cd]indolizine were characterized.
Collapse
Affiliation(s)
- Mingzhou Huang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Centre, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Lichan Deng
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Centre, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Tianfeng Lao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Centre, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Ziwu Zhang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Centre, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Zhengquan Su
- Guangdong Engineering Research Centre of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Centre of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Yue Yu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Centre, Guangdong Pharmaceutical University, Zhongshan 528458, China.,Guangdong Pharmaceutical University-University of Hong Kong Joint Biomedical Innovation Platform, Zhongshan 528437, China
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Centre, Guangdong Pharmaceutical University, Zhongshan 528458, China.,Guangdong Pharmaceutical University-University of Hong Kong Joint Biomedical Innovation Platform, Zhongshan 528437, China
| |
Collapse
|
15
|
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
|
16
|
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
|
17
|
Gou Q, Zhu Q, Deng M, Li W, Ran X, Xie J, Huang H, Tan X, Zhu M. The regioselective annulation of N-methylpyridinium ylides with alkenes enabled by palladium catalysis: access to 3-unsubstituted indolizine derivatives. Org Chem Front 2022. [DOI: 10.1039/d2qo00555g] [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
The first catalytic protocol for the regioselective [3 + 2] annulation of N-methyl pyridinium ylides with alkenes to establish various valuable 3-unsubstituted indolizine derivatives is accomplished via palladium catalysis at the unactivated position.
Collapse
Affiliation(s)
- Quan Gou
- Chongqing Key Laboratory of Inorganic Special Functional Materials, School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Qianhua Zhu
- Chongqing Key Laboratory of Inorganic Special Functional Materials, School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Mengjiao Deng
- Chongqing Key Laboratory of Inorganic Special Functional Materials, School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Weiwei Li
- Chongqing Key Laboratory of Inorganic Special Functional Materials, School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Xing Ran
- Chongqing Key Laboratory of Inorganic Special Functional Materials, School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Jianfeng Xie
- Department of Chongqing General Hospital, University of Chinese Academy of Sciences, Chongqing 400013, China
| | - Huisheng Huang
- Chongqing Key Laboratory of Inorganic Special Functional Materials, School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Xiaoping Tan
- Chongqing Key Laboratory of Inorganic Special Functional Materials, School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Minghong Zhu
- Fuling Hospital, Chongqing University, Chongqing, 408000, China
| |
Collapse
|
18
|
Cao Y, Shi Q, Gao K, Shao J, Zhu H, Zeng L, Zhang C, Xi J, Zhuang R, Zhang J. Self-[3+2] annulation reaction of pyridinium salts: synthesis of N-indolizine-substituted pyridine-2(1 H)-ones. NEW J CHEM 2022. [DOI: 10.1039/d2nj03232e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A self-[3+2] annulation reaction of pyridinium salts has been developed for the synthesis of N-indolizine-substituted pyridine-2(1H)-ones.
Collapse
Affiliation(s)
- Yu Cao
- School of Medicine, Zhejiang University City College, Hangzhou, 310015, China
- Department of Pharmaceutical Preparation, Hangzhou Xixi Hospital, Hangzhou, 310023, China
| | - Qiyuan Shi
- School of pharmacy, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Kai Gao
- Zhejiang Ausun Pharmaceutical Co., Ltd, China
| | - Jiaan Shao
- School of Medicine, Zhejiang University City College, Hangzhou, 310015, China
| | - Huajian Zhu
- School of Medicine, Zhejiang University City College, Hangzhou, 310015, China
| | - Linghui Zeng
- School of Medicine, Zhejiang University City College, Hangzhou, 310015, China
| | - Chong Zhang
- School of Medicine, Zhejiang University City College, Hangzhou, 310015, China
| | - Jianjun Xi
- Department of Pharmaceutical Preparation, Hangzhou Xixi Hospital, Hangzhou, 310023, China
| | - Rangxiao Zhuang
- Department of Pharmaceutical Preparation, Hangzhou Xixi Hospital, Hangzhou, 310023, China
| | - Jiankang Zhang
- School of Medicine, Zhejiang University City College, Hangzhou, 310015, China
| |
Collapse
|
19
|
Zhang XJ, Wang Z, Zhang H, Gao JJ, Yang KR, Fan WY, Wu RX, Feng ML, Zhu W, Zhu YP. Iodine-Mediated Domino Cyclization for One-Pot Synthesis of Indolizine-Fused Chromones via Metal-Free sp 3 C-H Functionalization. J Org Chem 2021; 87:835-845. [PMID: 34962788 DOI: 10.1021/acs.joc.1c02508] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An efficient method for the synthesis of new indolizine-fused chromones has been accomplished from ethyl (E)-3-(2-acetylphenoxy)acrylates and pyridines in a "one-pot" manner. Facile operation in open-air, metal-free, and mild conditions renders this protocol particularly practical and attractive. Moreover, this method can simultaneously construct two molecular fragments of chromone and indolizine. Scale-up experiment and the construction of natural products further prove the practicability of this strategy.
Collapse
Affiliation(s)
- Xiang-Jin Zhang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Shandong, Yantai 264005, PR China
| | - Zhuo Wang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Shandong, Yantai 264005, PR China
| | - Han Zhang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Shandong, Yantai 264005, PR China
| | - Jing-Jing Gao
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Shandong, Yantai 264005, PR China
| | - Kai-Rui Yang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Shandong, Yantai 264005, PR China
| | - Wei-Yu Fan
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Shandong, Yantai 264005, PR China
| | - Rui-Xue Wu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Shandong, Yantai 264005, PR China
| | - Meng-Lin Feng
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Shandong, Yantai 264005, PR China
| | - Wei Zhu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Shandong, Yantai 264005, PR China
| | - Yan-Ping Zhu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Shandong, Yantai 264005, PR China
| |
Collapse
|
20
|
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
|
21
|
Tang X, Wu Y, Jiang J, Fang H, Zhou WJ, Huang W, Zhan G. Formal (3 + 1 + 1) Carboannulation of Morita-Baylis-Hillman Carbonates with Pyridinium Ylides: Access to Spiro-Cyclopentadiene Oxindoles. Org Lett 2021; 23:8937-8941. [PMID: 34752114 DOI: 10.1021/acs.orglett.1c03418] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
An efficient formal (3 + 1 + 1) carboannulation strategy of Morita-Baylis-Hillman (MBH) carbonates with pyridinium ylides was developed for constructing diversely functionalized spiro-cyclopentadiene oxindoles. The reaction initiates with an SN2' olefination of MBH carbonates with pyridinium ylides. The in situ generated dienes then engage in a challenging (4 + 1) ylide carboannulation, which has been rarely reported before. The reaction features broad substrate scope as well as high chemo- and regioselectivity. (3 + 1 + 1) carboannulation products could be easily transformed into interesting spiro-cyclopenta[c]furan oxindoles.
Collapse
Affiliation(s)
- Xue Tang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People's Republic of China
| | - Yuling Wu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People's Republic of China
| | - Jing Jiang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People's Republic of China
| | - Huaying Fang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People's Republic of China
| | - Wu-Jingyun Zhou
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People's Republic of China
| | - Wei Huang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People's Republic of China
| | - Gu Zhan
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People's Republic of China
| |
Collapse
|
22
|
Chen Y, Shatskiy A, Liu JQ, Kärkäs MD, Wang XS. Silver-Promoted (4 + 1) Annulation of Isocyanoacetates with Alkylpyridinium Salts: Divergent Regioselective Synthesis of 1,2-Disubstituted Indolizines. Org Lett 2021; 23:7555-7560. [PMID: 34524832 DOI: 10.1021/acs.orglett.1c02754] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
An unprecedented silver-promoted regioselective (4 + 1) annulation of isocyanoacetates with pyridinium salts is reported. The established protocol provides controlled, facile, and modular access to a range of synthetically useful N-fused heterocyclic scaffolds containing indolizines, pyrrolo[1,2-a]quinolines, pyrrolo[2,1-a]isoquinolines, and 1H-imidazo[4,5-a]indolizin-2(3H)-ones. A mechanistic pathway involving nucleophilic addition/protonation/elimination/cycloisomerization is proposed.
Collapse
Affiliation(s)
- Yan Chen
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Andrey Shatskiy
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Jian-Quan Liu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.,Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Markus D Kärkäs
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Xiang-Shan Wang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| |
Collapse
|
23
|
Wang Y, Zhang Z, Deng L, Lao T, Su Z, Yu Y, Cao H. Mechanochemical Synthesis of 1,2-Diketoindolizine Derivatives from Indolizines and Epoxides Using Piezoelectric Materials. Org Lett 2021; 23:7171-7176. [PMID: 34459619 DOI: 10.1021/acs.orglett.1c02575] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A simple and efficient mechanochemical-induced approach for the synthesis of 1,2-diketoindolizine derivatives has been developed. BaTiO3 was used as the piezoelectric material in this transformation. This method features no usage of solvent, simple experimental operation, scalable potential, and high conversion efficiency, which make it attractive and practical.
Collapse
Affiliation(s)
- Yumei Wang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Ziwu Zhang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Lichan Deng
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Tianfeng Lao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Zhengquan Su
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Yue Yu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.,Guangdong Pharmaceutical University-University of Hong Kong Joint Biomedical Innovation Platform, Zhongshan 528437, China
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| |
Collapse
|
24
|
McConnell DL, Blades AM, Rodrigues DG, Keyes PV, Sonberg JC, Anthony CE, Rachad S, Simone OM, Sullivan CF, Shapiro JD, Williams CC, Schafer BC, Glanzer AM, Hutchinson HL, Thayaparan AB, Krevlin ZA, Bote IC, Haffary YA, Bhandari S, Goodman JA, Majireck MM. Synthesis of Bench-Stable N-Quaternized Ketene N, O-Acetals and Preliminary Evaluation as Reagents in Organic Synthesis. J Org Chem 2021; 86:13025-13040. [PMID: 34498466 DOI: 10.1021/acs.joc.1c01764] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
N-Quaternized ketene N,O-acetals are typically an unstable, transient class of compounds most commonly observed as reactive intermediates. In this report, we describe a general synthetic approach to a variety of bench-stable N-quaternized ketene N,O-acetals via treatment of pyridine or aniline bases with acetylenic ethers and an appropriate Brønsted or Lewis acid (triflic acid, triflimide, or scandium(III) triflate). The resulting pyridinium and anilinium salts can be used as reagents or synthetic intermediates in multiple reaction types. For example, N-(1-ethoxyvinyl)pyridinium or anilinium salts can thermally release highly reactive O-ethyl ketenium ions for use in acid catalyst-free electrophilic aromatic substitutions. N-(1-Ethoxyvinyl)-2-halopyridinium salts can be employed in peptide couplings as a derivative of Mukaiyama reagents or react with amines in nucleophilic aromatic substitutions under mild conditions. These preliminary reactions illustrate the broad potential of these currently understudied compounds in organic synthesis.
Collapse
Affiliation(s)
- Danielle L McConnell
- Chemistry Department, Hamilton College, 198 College Hill Rd., Clinton, New York 13323, United States
| | - Alisha M Blades
- Chemistry Department, Hamilton College, 198 College Hill Rd., Clinton, New York 13323, United States
| | - Danielle Gomes Rodrigues
- Chemistry Department, Hamilton College, 198 College Hill Rd., Clinton, New York 13323, United States
| | - Phoebe V Keyes
- Chemistry Department, Hamilton College, 198 College Hill Rd., Clinton, New York 13323, United States
| | - Justin C Sonberg
- Chemistry Department, Hamilton College, 198 College Hill Rd., Clinton, New York 13323, United States
| | - Caitlin E Anthony
- Chemistry Department, Hamilton College, 198 College Hill Rd., Clinton, New York 13323, United States
| | - Sofia Rachad
- Chemistry Department, Hamilton College, 198 College Hill Rd., Clinton, New York 13323, United States
| | - Olivia M Simone
- Chemistry Department, Hamilton College, 198 College Hill Rd., Clinton, New York 13323, United States
| | - Caroline F Sullivan
- Chemistry Department, Hamilton College, 198 College Hill Rd., Clinton, New York 13323, United States
| | - Jonathan D Shapiro
- Chemistry Department, Hamilton College, 198 College Hill Rd., Clinton, New York 13323, United States
| | - Christopher C Williams
- Chemistry Department, Hamilton College, 198 College Hill Rd., Clinton, New York 13323, United States
| | - Benjamin C Schafer
- Chemistry Department, Hamilton College, 198 College Hill Rd., Clinton, New York 13323, United States
| | - Amy M Glanzer
- Chemistry Department, Hamilton College, 198 College Hill Rd., Clinton, New York 13323, United States
| | - Holly L Hutchinson
- Chemistry Department, Hamilton College, 198 College Hill Rd., Clinton, New York 13323, United States
| | - Ashley B Thayaparan
- Chemistry Department, Hamilton College, 198 College Hill Rd., Clinton, New York 13323, United States
| | - Zoe A Krevlin
- Chemistry Department, Hamilton College, 198 College Hill Rd., Clinton, New York 13323, United States
| | - Isabella C Bote
- Chemistry Department, Hamilton College, 198 College Hill Rd., Clinton, New York 13323, United States
| | - Yasin A Haffary
- Chemistry Department, Hamilton College, 198 College Hill Rd., Clinton, New York 13323, United States
| | - Sambat Bhandari
- Chemistry Department, Hamilton College, 198 College Hill Rd., Clinton, New York 13323, United States
| | - Jack A Goodman
- Chemistry Department, Hamilton College, 198 College Hill Rd., Clinton, New York 13323, United States
| | - Max M Majireck
- Chemistry Department, Hamilton College, 198 College Hill Rd., Clinton, New York 13323, United States
| |
Collapse
|
25
|
Watanabe K, Terao N, Niwa T, Hosoya T. Direct 3-Acylation of Indolizines by Carboxylic Acids for the Practical Synthesis of Red Light-Releasable Caged Carboxylic Acids. J Org Chem 2021; 86:11822-11834. [PMID: 34279948 DOI: 10.1021/acs.joc.1c01244] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
To enhance the practicality of photouncaging system using 3-acyl-2-methoxyindolizines, direct acylation of indolizines with carboxylic acids was developed using condensation reagents, generally used for peptide coupling. This method allowed for caging a broad range of carboxylic acids with indolizines. The method enabled a facile synthesis of water-soluble caged bioactive carboxylic acids having an intramolecular photosensitizer. The efficient release of carboxylic acids from the synthesized caged compounds upon red light irradiation was confirmed in neutral buffered solutions.
Collapse
Affiliation(s)
- Kenji Watanabe
- Laboratory for Chemical Biology, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe 650-0047, Japan
| | - Nodoka Terao
- Laboratory for Chemical Biology, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe 650-0047, Japan
| | - Takashi Niwa
- Laboratory for Chemical Biology, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe 650-0047, Japan
| | - Takamitsu Hosoya
- Laboratory for Chemical Biology, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe 650-0047, Japan.,Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), Chiyoda-ku, Tokyo 101-0062, Japan
| |
Collapse
|
26
|
Goetz AE, Becirovic H, Blasberg F, Chen B, Clarke HJ, Colombo M, Daddario P, Damon DB, Depretz C, Dumond YR, Grilli MD, Han L, Houck TL, Johnson AM, Jones KN, Jung J, Leeman M, Liu F, Lu CV, Mangual EJ, Nelson JD, Puchlopek-Dermenci ALA, Ruggeri SG, Simonds PA, Sitter B, Virtue DE, Wang S, Yu L, Yu T. Large-Scale Cyclopropanation of Butyl Acrylate with Difluorocarbene and Classical Resolution of a Key Fluorinated Building Block. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.1c00171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Adam E. Goetz
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Husein Becirovic
- Analytical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Florian Blasberg
- AMRI, Euticals GmbH, Industriepark Höchst D569, 65926 Frankfurt am Main, Germany
| | - Bo Chen
- Porton R&D Center, No. 1299 Ziyue Rd, Zizhu Science Park, Minhang District, Shanghai, China
| | - Hugh J. Clarke
- Analytical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | | | - Pedro Daddario
- Analytical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - David B. Damon
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Christelle Depretz
- AMRI, Euticals S.A.S., Zone Industrielle de Laville, 47240 Bon-Encontre, France
| | - Yves R. Dumond
- AMRI, Euticals S.A.S., Zone Industrielle de Laville, 47240 Bon-Encontre, France
| | | | - Lu Han
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Tim L. Houck
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Amber M. Johnson
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Kris N. Jones
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Jörg Jung
- AMRI, Euticals GmbH, Industriepark Höchst D569, 65926 Frankfurt am Main, Germany
| | - Michel Leeman
- Symeres BV, Kadijk 3, 9747 AT Groningen, The Netherlands
| | - Fangfang Liu
- Analytical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Cuong V. Lu
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Emilio J. Mangual
- Analytical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Jade D. Nelson
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Angela L. A. Puchlopek-Dermenci
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Sally Gut Ruggeri
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Paul A. Simonds
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Barbara Sitter
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Daniel E. Virtue
- Analytical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Shuguang Wang
- Porton R&D Center, No. 1299 Ziyue Rd, Zizhu Science Park, Minhang District, Shanghai, China
| | - Lixin Yu
- Porton R&D Center, No. 1299 Ziyue Rd, Zizhu Science Park, Minhang District, Shanghai, China
| | - Tao Yu
- Porton R&D Center, No. 1299 Ziyue Rd, Zizhu Science Park, Minhang District, Shanghai, China
| |
Collapse
|
27
|
Zhou S, Hou X, Yang K, Guo M, Zhao W, Tang X, Wang G. Direct Synthesis of N-Difluoromethyl-2-pyridones from Pyridines. J Org Chem 2021; 86:6879-6887. [PMID: 33905251 DOI: 10.1021/acs.joc.1c00228] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel method for the synthesis of N-difluoromethyl-2-pyridones was described. This protocol enables the synthesis of N-difluoromethyl-2-pyridones from readily available pyridines using mild reaction conditions that are compatible with a wide range of functional groups. The preliminary mechanistic study revealed that N-difluoromethylpyridinium salts were the key intermediates to complete this conversion.
Collapse
Affiliation(s)
- Sen Zhou
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Xiaoya Hou
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Kai Yang
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Minjie Guo
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Wentao Zhao
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Xiangyang Tang
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Guangwei Wang
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China
| |
Collapse
|
28
|
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
|