1
|
Chebieb A, Cha JK. A Cascade Synthesis of Indoles. J Org Chem 2024; 89:10293-10298. [PMID: 38963688 DOI: 10.1021/acs.joc.4c01190] [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
We report herein an expedient method for the regioselective synthesis of indoles from o-haloanilines and α-ketol-derived N-tosylhydrazones. This two-step, modular synthesis of N-H indoles can be carried out conveniently without purification of intermediates.
Collapse
Affiliation(s)
- Assia Chebieb
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
- Laboratory of Catalysis and Organic Synthesis LCSCO, University of Tlemcen, Tlemcen 13000, Algeria
| | - Jin Kun Cha
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
| |
Collapse
|
2
|
Mandal B, Mandal S, Halder S, Adhikari D. Photocatalytic α-arylation of cyclic ketones by a thermally activated delayed fluorescence molecule. Chem Commun (Camb) 2024; 60:5852-5855. [PMID: 38752485 DOI: 10.1039/d4cc01287a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
α-Arylation of cyclic ketones via an organophotocatalytic route has been described utilizing PXZ-TRZ, a molecule displaying thermally activated delayed fluorescence (TADF). Using this route, a plethora of cyclic ketones including cyclohexanone, cyclopentanone and even cyclooctanone can be effectively arylated with many aryl iodides or bromides under mild conditions.
Collapse
Affiliation(s)
- Baishanal Mandal
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector-81, Knowledge City, Manauli-140306, India.
| | - Sourav Mandal
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector-81, Knowledge City, Manauli-140306, India.
| | - Supriya Halder
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector-81, Knowledge City, Manauli-140306, India.
| | - Debashis Adhikari
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector-81, Knowledge City, Manauli-140306, India.
| |
Collapse
|
3
|
Zhang B, Ruan J, Seidel D, Chen W. Palladium-Catalyzed Arylation of Endocyclic 1-Azaallyl Anions: Concise Synthesis of Unprotected Enantioenriched cis-2,3-Diarylpiperidines. Angew Chem Int Ed Engl 2023; 62:e202307638. [PMID: 37461285 PMCID: PMC10530244 DOI: 10.1002/anie.202307638] [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: 05/31/2023] [Accepted: 07/17/2023] [Indexed: 07/29/2023]
Abstract
Unprotected cis-2,3-diarylpiperidines are synthesized through an unprecedented palladium-catalyzed cross-coupling reaction between aryl halides and elusive endocyclic 1-azaallyl anions. These intermediates are generated in situ by the deprotonation of 2-aryl-1-piperideines, precursors that are readily prepared in two operations from simple piperidines. An asymmetric version of this reaction with (2R, 3R)-iPr-BI-DIME as the ligand provides products in moderate to good yields and enantioselectivities. This study significantly expands the synthetic utility of endocyclic 1-azaallyl anions.
Collapse
Affiliation(s)
- Biao Zhang
- School of Chemical Science and Engineering, Institute for Advanced Studies, Tongji University, 1239 Siping Rd, Shanghai, 200092, P. R. of China
| | - Junhao Ruan
- School of Chemical Science and Engineering, Institute for Advanced Studies, Tongji University, 1239 Siping Rd, Shanghai, 200092, P. R. of China
| | - Daniel Seidel
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
| | - Weijie Chen
- School of Chemical Science and Engineering, Institute for Advanced Studies, Tongji University, 1239 Siping Rd, Shanghai, 200092, P. R. of China
| |
Collapse
|
4
|
Abstract
A convenient method for the synthesis of indoles has been developed by the sequential orchestration of the cross-coupling reaction of o-haloaniline and PIFA oxidation of the resulting 2-alkenylanilines. A highlight of this two-step indole synthesis is a modular strategy which is applicable to both acyclic and cyclic starting materials. Particularly noteworthy is the regiochemistry that is complementary to the Fischer indole synthesis and related variants. Direct preparation of N-H indoles with no N-protecting group is also advantageous.
Collapse
Affiliation(s)
- Assia Chebieb
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
- Laboratory of Catalysis and Organic Synthesis LCSCO, University of Tlemcen, Tlemcen 13000, Algeria
| | - Young Gyu Kim
- Department of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Jin Kun Cha
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
| |
Collapse
|
5
|
Foley DJ, Waldmann H. Ketones as strategic building blocks for the synthesis of natural product-inspired compounds. Chem Soc Rev 2022; 51:4094-4120. [PMID: 35506561 DOI: 10.1039/d2cs00101b] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Natural product-inspired compound collections serve as excellent sources for the identification of new bioactive compounds to treat disease. However, such compounds must necessarily be more structurally-enriched than traditional screening compounds, therefore inventive synthetic strategies and reliable methods are needed to prepare them. Amongst the various possible starting materials that could be considered for the synthesis of natural product-inspired compounds, ketones can be especially valuable due to the vast variety of complexity-building synthetic transformations that they can take part in, their high prevalence as commercial building blocks, and relative ease of synthesis. With a view towards developing a unified synthetic strategy for the preparation of next generation bioactive compound collections, this review considers whether ketones could serve as general precursors in this regard, and summarises the opulence of synthetic transformations available for the annulation of natural product ring-systems to ketone starting materials.
Collapse
Affiliation(s)
- Daniel J Foley
- School of Physical and Chemical Sciences, University of Canterbury, Christchurch, New Zealand. .,Max-Planck Institute of Molecular Physiology, Dortmund, Germany
| | - Herbert Waldmann
- Max-Planck Institute of Molecular Physiology, Dortmund, Germany.,Faculty of Chemistry and Chemical Biology, TU Dortmund University, Dortmund, Germany
| |
Collapse
|
6
|
Shen C, Ji Y, Wang P, Bai S, Wang M, Li Y, Huang X, Shao Q. Interface Confinement in Metal Nanosheet for High-Efficiency Semi-Hydrogenation of Alkynes. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00200] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Chenqi Shen
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu 215123, China
| | - Yujin Ji
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Jiangsu 215123, China
| | - Pengtang Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu 215123, China
| | - Shuxing Bai
- College of Chemistry and Chemical Engineering, Qingdao University, Shandong 266071, China
| | - Man Wang
- Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology, Shenzhen 518055, China
| | - Youyong Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Jiangsu 215123, China
| | - Xiaoqing Huang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu 215123, China
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Qi Shao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu 215123, China
| |
Collapse
|
7
|
Liang RX, Zhong C, Liu ZH, Yang M, Tang HW, Chen JF, Yang YF, Jia YX. Enantioselective Arylation of Tetrasubstituted Enamines: Access to Enantioenriched Indolenine and 1H-Indole Derivatives. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ren-Xiao Liang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Chao Zhong
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Zhi-Hong Liu
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Miao Yang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Heng-Wei Tang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Jian-Fei Chen
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Yun-Fang Yang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Yi-Xia Jia
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| |
Collapse
|
8
|
Lu G, Xie F, Xie R, Jiang H, Zhang M. Iridium/Acid Cocatalyzed Direct Access to Fused Indoles via Transfer Hydrogenative Annulation of Quinolines and 1,2-Diketones. Org Lett 2020; 22:2308-2312. [DOI: 10.1021/acs.orglett.0c00500] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Guangpeng Lu
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Wushan Rd-381, Guangzhou 510641, P. R. China
| | - Feng Xie
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Rong Xie
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Wushan Rd-381, Guangzhou 510641, P. R. China
| | - Huanfeng Jiang
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Wushan Rd-381, Guangzhou 510641, P. R. China
| | - Min Zhang
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Wushan Rd-381, Guangzhou 510641, P. R. China
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| |
Collapse
|
9
|
Yazdani-Elah-Abadi A, Razeghi M, Shams N, Kangani M, Mohebat R. Fulvic Acid: An Efficient and Green Catalyst for the One-pot Four-component Domino Synthesis of Benzo[a]phenazine Annulated Heterocycles in Aqueous Medium. ORG PREP PROCED INT 2020. [DOI: 10.1080/00304948.2019.1697608] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
| | - Maliheh Razeghi
- Department of Food Science and Technology, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Nasim Shams
- Young Researchers and Elite Club, Islamic Azad University, Yazd Branch, Yazd, Iran
| | - Mehrnoush Kangani
- Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, Zahedan, Iran
| | - Razieh Mohebat
- Young Researchers and Elite Club, Islamic Azad University, Yazd Branch, Yazd, Iran
| |
Collapse
|
10
|
Mao J, Wang Z, Xu X, Liu G, Jiang R, Guan H, Zheng Z, Walsh PJ. Synthesis of Indoles through Domino Reactions of 2‐Fluorotoluenes and Nitriles. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904658] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Jianyou Mao
- Institute of Advanced Synthesis School of Chemistry and Molecular Engineering Nanjing Tech University 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Zhiting Wang
- Institute of Advanced Synthesis School of Chemistry and Molecular Engineering Nanjing Tech University 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Xinyu Xu
- Institute of Advanced Synthesis School of Chemistry and Molecular Engineering Nanjing Tech University 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Guoqing Liu
- Institute of Advanced Synthesis School of Chemistry and Molecular Engineering Nanjing Tech University 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Runsheng Jiang
- Institute of Advanced Synthesis School of Chemistry and Molecular Engineering Nanjing Tech University 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Haixing Guan
- Institute of Advanced Synthesis School of Chemistry and Molecular Engineering Nanjing Tech University 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Zhipeng Zheng
- Roy and Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania 231 South 34th Street Philadelphia PA 19104 USA
| | - Patrick J. Walsh
- Institute of Advanced Synthesis School of Chemistry and Molecular Engineering Nanjing Tech University 30 South Puzhu Road Nanjing 211816 P. R. China
- Roy and Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania 231 South 34th Street Philadelphia PA 19104 USA
| |
Collapse
|
11
|
Mao J, Wang Z, Xu X, Liu G, Jiang R, Guan H, Zheng Z, Walsh PJ. Synthesis of Indoles through Domino Reactions of 2-Fluorotoluenes and Nitriles. Angew Chem Int Ed Engl 2019; 58:11033-11038. [PMID: 31062472 DOI: 10.1002/anie.201904658] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Indexed: 12/30/2022]
Abstract
Indoles are essential heterocycles in medicinal chemistry, and therefore, novel and efficient approaches to their synthesis are in high demand. Among indoles, 2-aryl indoles have been described as privileged scaffolds. Advanced herein is a straightforward, practical, and transition-metal-free assembly of 2-aryl indoles. Simply combining readily available 2-fluorotoluenes, nitriles, LiN(SiMe3 )2 , and CsF enables the generation of a diverse array of indoles (38 examples, 48-92 % yield). A range of substituents can be introduced into each position of the indole backbone (C4 to C7, and aryl groups at C2), providing handles for further elaboration.
Collapse
Affiliation(s)
- Jianyou Mao
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Zhiting Wang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Xinyu Xu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Guoqing Liu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Runsheng Jiang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Haixing Guan
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Zhipeng Zheng
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, PA, 19104, USA
| | - Patrick J Walsh
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, P. R. China.,Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, PA, 19104, USA
| |
Collapse
|
12
|
Dong Z, Zhang XW, Li W, Li ZM, Wang WY, Zhang Y, Liu W, Liu WB. Synthesis of N-Fused Polycyclic Indoles via Ligand-Free Palladium-Catalyzed Annulation/Acyl Migration Reaction. Org Lett 2019; 21:1082-1086. [DOI: 10.1021/acs.orglett.8b04128] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhan Dong
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Xiao-Wen Zhang
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Weishuang Li
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Zi-Meng Li
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Wen-Yan Wang
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Yan Zhang
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Wei Liu
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Wen-Bo Liu
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| |
Collapse
|
13
|
A Simple and Efficient Synthesis of Highly Substituted Indeno[1,2- b]pyrrole and Acenaphtho[1,2- b]pyrrole Derivatives by Tandem Three-Component Reactions. Molecules 2018; 23:molecules23113031. [PMID: 30463337 PMCID: PMC6278260 DOI: 10.3390/molecules23113031] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 11/15/2018] [Accepted: 11/19/2018] [Indexed: 01/08/2023] Open
Abstract
A green, convenient and tandem procedure for the efficient synthesis of highly substituted indeno[1,2-b]pyrrole and acenaphtho[1,2-b]pyrrole derivatives by domino three-component reaction of tryptamine/benzylamine, 1,3-dicarbonyl compounds and ninhydrin/ acenaphthenequinone is described. The significant features of this procedure were characterized by mild reaction conditions, high yields, operational simplicity and it being environmentally benign.
Collapse
|
14
|
Zou Y, Li X, Yang Y, Berritt S, Melvin J, Gonzales S, Spafford M, Smith AB. Total Synthesis of (-)-Nodulisporic Acids D, C, and B: Evolution of a Unified Synthetic Strategy. J Am Chem Soc 2018; 140:9502-9511. [PMID: 30028603 PMCID: PMC6085755 DOI: 10.1021/jacs.8b04053] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A unified synthetic strategy leading to the total synthesis of (-)-nodulisporic acids D, C, and B is described. Key synthetic transformations include a nickel-chromium-mediated cyclization, an aromatic ring functionalization employing a novel copper-promoted alkylation, a palladium-catalyzed cross-coupling cascade/indole ring construction, and a palladium-mediated regio- and diastereoselective allylic substitution/cyclization reaction, the latter to construct ring D.
Collapse
Affiliation(s)
- Yike Zou
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Xiangqin Li
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Yun Yang
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Simon Berritt
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Jason Melvin
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Stephen Gonzales
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Matthew Spafford
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Amos B. Smith
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| |
Collapse
|
15
|
Affiliation(s)
- So Won Youn
- Center for New Directions in Organic Synthesis, Department of Chemistry and Institute for Natural Sciences; Hanyang University; Seoul 04763 Korea
| | - Tae Yun Ko
- Center for New Directions in Organic Synthesis, Department of Chemistry and Institute for Natural Sciences; Hanyang University; Seoul 04763 Korea
| |
Collapse
|
16
|
Wen R, Cen L, Ma Y, Wang J, Zhu S. One-pot, five-component 1,3-dipolar cycloaddition: A facile synthesis of spiropyrrolidine and spiropyrrolizidine derivatives. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.059] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
17
|
Pandey G, Tiwari SK, Budakoti A, Sahani PK. Transition-metal-free photoredox intermolecular α-arylation of ketones. Org Chem Front 2018. [DOI: 10.1039/c8qo00510a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
α-Arylation of ketones with electron rich arenes via sp2(C)–H has been achieved by the reaction of α-phenylselanylketones using organic photoredox catalysis.
Collapse
Affiliation(s)
- Ganesh Pandey
- Molecular Synthesis and Drug Discovery Laboratory
- Centre of Bio-Medical Research (CBMR)
- Sanjay Gandhi Postgraduate Institute of Medical Science Campus
- Lucknow-226014
- India
| | - Sandip Kumar Tiwari
- Molecular Synthesis and Drug Discovery Laboratory
- Centre of Bio-Medical Research (CBMR)
- Sanjay Gandhi Postgraduate Institute of Medical Science Campus
- Lucknow-226014
- India
| | - Asha Budakoti
- Molecular Synthesis and Drug Discovery Laboratory
- Centre of Bio-Medical Research (CBMR)
- Sanjay Gandhi Postgraduate Institute of Medical Science Campus
- Lucknow-226014
- India
| | - Pramod Kumar Sahani
- Molecular Synthesis and Drug Discovery Laboratory
- Centre of Bio-Medical Research (CBMR)
- Sanjay Gandhi Postgraduate Institute of Medical Science Campus
- Lucknow-226014
- India
| |
Collapse
|
18
|
Reddy ACS, Choutipalli VSK, Ghorai J, Subramanian V, Anbarasan P. Stereoselective Palladium-Catalyzed Synthesis of Indolines via Intramolecular Trapping of N-Ylides with Alkenes. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02072] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Jayanta Ghorai
- Department
of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | | | - Pazhamalai Anbarasan
- Department
of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| |
Collapse
|
19
|
Mohebat R, Yazdani-Elah-Abadi A, Malek-Taher Maghsoodlou, Hazeri N. DABCO-catalyzed multi-component domino reactions for green and efficient synthesis of novel 3-oxo-3 H -benzo[ a ]pyrano[2,3- c ]phenazine-1-carboxylate and 3-(5-hydroxybenzo[ a ]phenazin-6-yl)acrylate derivatives in water. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2016.12.042] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
20
|
Yugandar S, Konda S, Ila H. Synthesis of Substituted Benzo[b]thiophenes via Sequential One-Pot, Copper-Catalyzed Intermolecular C–S Bond Formation and Palladium-Catalyzed Intramolecular Arene–Alkene Coupling of Bis(het)aryl/alkyl-1,3-monothiodiketones and o-Bromoiodoarenes. Org Lett 2017; 19:1512-1515. [DOI: 10.1021/acs.orglett.7b00273] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Somaraju Yugandar
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - Saidulu Konda
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - Hiriyakkanavar Ila
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| |
Collapse
|
21
|
Yazdani-Elah-Abadi A, Mohebat R, Kangani M. Microwave-Assisted and L-proline Catalysed Domino Cyclisation in an Aqueous Medium: A Rapid, Highly Efficient and Green Synthesis of Benzo[a]Phenazine Annulated Heterocycles. JOURNAL OF CHEMICAL RESEARCH 2016. [DOI: 10.3184/174751916x14787124908891] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A highly efficient one-pot, two-step microwave-assisted procedure was applied for the rapid and green synthesis of benzo[a]phenazine annulated heterocyclic ring systems from the three- or four-component condensation reactions of 2-hydroxynaphthalene-1,4-dione, o-phenylenediamine, aromatic aldehydes and 1,3-indandione using L-proline as a bifunctional organocatalyst in water. This new procedure has a number of advantages such as high yields, very short reaction times, operational simplicity, simple work-up procedures and avoidance of hazardous or toxic catalysts and organic solvents. Moreover, the catalyst can be recovered and reused several times without much loss of its performance.
Collapse
Affiliation(s)
| | - Razieh Mohebat
- Department of Chemistry, Yazd Branch, Islamic Azad University, Yazd, Iran
| | - Mehrnoosh Kangani
- Young Researchers and Elite Club, Zahedan Branch, Islamic Azad University, Zahedan, Iran
| |
Collapse
|
22
|
Marelli E, Corpet M, Minenkov Y, Neyyappadath RM, Bismuto A, Buccolini G, Curcio M, Cavallo L, Nolan SP. Catalytic α-Arylation of Imines Leading to N-Unprotected Indoles and Azaindoles. ACS Catal 2016; 6:2930-2938. [PMID: 29291137 PMCID: PMC5745074 DOI: 10.1021/acscatal.6b00040] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 03/29/2016] [Indexed: 01/16/2023]
Abstract
![]()
A palladium N-heterocyclic
carbene catalyzed methodology for the
synthesis of substituted, N-unprotected indoles and azaindoles is
reported. The protocol permits access to various, highly substituted
members of these classes of compounds. Although two possible reaction
pathways (deprotonative and Heck-like) can be proposed, control experiments,
supported by computational studies, point toward a deprotonative mechanism
being operative.
Collapse
Affiliation(s)
- Enrico Marelli
- School
of Chemistry, EaStCHEM, University of St Andrews, North Haugh, St. Andrews KY16 9ST, U.K
| | - Martin Corpet
- School
of Chemistry, EaStCHEM, University of St Andrews, North Haugh, St. Andrews KY16 9ST, U.K
| | - Yury Minenkov
- Physical Sciences and Engineering Division, KAUST Catalysis
Center, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | | | - Alessandro Bismuto
- School
of Chemistry, EaStCHEM, University of St Andrews, North Haugh, St. Andrews KY16 9ST, U.K
| | - Giulia Buccolini
- School
of Chemistry, EaStCHEM, University of St Andrews, North Haugh, St. Andrews KY16 9ST, U.K
| | - Massimiliano Curcio
- School
of Chemistry, EaStCHEM, University of St Andrews, North Haugh, St. Andrews KY16 9ST, U.K
| | - Luigi Cavallo
- Physical Sciences and Engineering Division, KAUST Catalysis
Center, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Steven P. Nolan
- Chemistry
Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
- Department
of Inorganic and Physical Chemistry, Universiteit Gent, Krijgslaan 281-S3, 9000 Ghent, Belgium
| |
Collapse
|
23
|
Bagdasarian AL, Nguyen HH, Palazzo TA, Fettinger JC, Haddadin MJ, Kurth MJ. One-Pot Synthesis of Benzo[4,5]imidazo[2,1-a]isoquinolines and Isoquinolino[3,4-b]quinoxalines via Tandem Cyclization Strategies. J Org Chem 2016; 81:3924-8. [PMID: 27030441 PMCID: PMC6688609 DOI: 10.1021/acs.joc.6b00338] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Two operationally simple one-pot protocols have been developed for the synthesis of amino-functionalized benzo[4,5]imidazo[2,1-a]isoquinolines and isoquinolino[3,4-b]quinoxalines. Optimization data and substrate scope for these atom-economical transformations, which engage commercially available o-phenylenediamines and o-cyanobenzaldehydes, are discussed.
Collapse
Affiliation(s)
- Alex L. Bagdasarian
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - Huy H. Nguyen
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - Teresa A. Palazzo
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - James C. Fettinger
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - Makhluf J. Haddadin
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - Mark J. Kurth
- Department of Chemistry, American University of Beirut, Beirut 1107 2020, Lebanon
| |
Collapse
|
24
|
Mohebat R, Yazdani Elah Abadi A, Maghsoodlou MT. A rapid and efficient domino protocol for the synthesis of functionalized benzo[a]pyrano[2,3-c]phenazine and benzo[f]pyrano[2,3-h]quinoxaline derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-016-2437-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
25
|
Xu Y, Su T, Huang Z, Dong G. Practical Direct α-Arylation of Cyclopentanones by Palladium/Enamine Cooperative Catalysis. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510638] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yan Xu
- Department of Chemistry; University of Texas at Austin; 100 East 24th street Austin TX 78712 USA
| | - Tianshun Su
- Department of Chemistry; University of Science and Technology of China (USTC); Hefei Anhui 230026 China
| | - Zhongxing Huang
- Department of Chemistry; University of Texas at Austin; 100 East 24th street Austin TX 78712 USA
| | - Guangbin Dong
- Department of Chemistry; University of Texas at Austin; 100 East 24th street Austin TX 78712 USA
| |
Collapse
|
26
|
Xu Y, Su T, Huang Z, Dong G. Practical Direct α-Arylation of Cyclopentanones by Palladium/Enamine Cooperative Catalysis. Angew Chem Int Ed Engl 2016; 55:2559-63. [DOI: 10.1002/anie.201510638] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Indexed: 01/20/2023]
Affiliation(s)
- Yan Xu
- Department of Chemistry; University of Texas at Austin; 100 East 24th street Austin TX 78712 USA
| | - Tianshun Su
- Department of Chemistry; University of Science and Technology of China (USTC); Hefei Anhui 230026 China
| | - Zhongxing Huang
- Department of Chemistry; University of Texas at Austin; 100 East 24th street Austin TX 78712 USA
| | - Guangbin Dong
- Department of Chemistry; University of Texas at Austin; 100 East 24th street Austin TX 78712 USA
| |
Collapse
|
27
|
Yazdani-Elah-Abadi A, Mohebat R, Maghsoodlou MT. Theophylline as the catalyst for the diastereoselective synthesis of trans-1,2-dihydrobenzo[a]furo[2,3-c]phenazines in water. RSC Adv 2016. [DOI: 10.1039/c6ra18750a] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Theophylline-catalyzed efficient and environmentally benign procedure for the diastereoselective synthesis of trans-1,2-dihydrobenzo[a]furo[2,3-c]phenazines with pyridinium ylide assisted domino reaction in water.
Collapse
Affiliation(s)
| | - Razieh Mohebat
- Department of Chemistry
- Yazd Branch
- Islamic Azad University
- Yazd
- Iran
| | | |
Collapse
|
28
|
Pilgrim BS, Gatland AE, Esteves CHA, McTernan CT, Jones GR, Tatton MR, Procopiou PA, Donohoe TJ. Palladium-catalyzed enolate arylation as a key C-C bond-forming reaction for the synthesis of isoquinolines. Org Biomol Chem 2015; 14:1065-90. [PMID: 26632484 DOI: 10.1039/c5ob02320c] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The palladium-catalyzed coupling of an enolate with an ortho-functionalized aryl halide (an α-arylation) furnishes a protected 1,5-dicarbonyl moiety that can be cyclized to an isoquinoline with a source of ammonia. This fully regioselective synthetic route tolerates a wide range of substituents, including those that give rise to the traditionally difficult to access electron-deficient isoquinoline skeletons. These two synthetic operations can be combined to give a three-component, one-pot isoquinoline synthesis. Alternatively, cyclization of the intermediates with hydroxylamine hydrochloride engenders direct access to isoquinoline N-oxides; and cyclization with methylamine, gives isoquinolinium salts. Significant diversity is available in the substituents at the C4 position in four-component, one-pot couplings, by either trapping the in situ intermediate after α-arylation with carbon or heteroatom-based electrophiles, or by performing an α,α-heterodiarylation to install aryl groups at this position. The α-arylation of nitrile and ester enolates gives access to 3-amino and 3-hydroxyisoquinolines and the α-arylation of tert-butyl cyanoacetate followed by electrophile trapping, decarboxylation and cyclization, C4-functionalized 3-aminoisoquinolines. An oxime directing group can be used to direct a C-H functionalization/bromination, which allows monofunctionalized rather than difunctionalized aryl precursors to be brought through this synthetic route.
Collapse
Affiliation(s)
- Ben S Pilgrim
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK.
| | | | | | | | | | | | | | | |
Collapse
|
29
|
Nguyen HH, Fettinger JC, Haddadin MJ, Kurth MJ. Expedient one-pot synthesis of indolo[3,2- c]isoquinolines via a base-promoted N-alkylation/tandem cyclization. Tetrahedron Lett 2015; 56:5429-5433. [PMID: 26366017 DOI: 10.1016/j.tetlet.2015.08.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
A transition metal-free, one-pot protocol has been developed for the synthesis of 11H-indolo[3,2-c]isoquinolin-5-amines via the atom economical annulation of ethyl (2-cyanophenyl)carbamates and 2-cyanobenzyl bromides. This method proceeds via sequential N-alkylation and base-promoted cyclization. Optimization data, substrate scope, mechanistic insights, and photoluminescence properties are discussed.
Collapse
Affiliation(s)
- Huy H Nguyen
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - James C Fettinger
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - Makhluf J Haddadin
- Department of Chemistry, American University of Beirut, Beirut, 1107 2020 Lebanon
| | - Mark J Kurth
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| |
Collapse
|
30
|
Hu Y, Li Y, Zhang S, Li C, Li L, Zha Z, Wang Z. Copper Catalyzed Enantioselective Alkylation of Pyrrole with β,γ-Unsaturated α-Ketoesters: Application to One-Pot Construction of the Seven-Membered Ring by Merging a Gold Catalysis. Org Lett 2015; 17:4018-21. [PMID: 26241822 DOI: 10.1021/acs.orglett.5b01917] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A highly enantioselective Friedel-Crafts alkylation of pyrrole to β,γ-unsaturated α-ketoesters was developed by virtue of a chiral copper complex, affording the alkylated derivatives of pyrrole with good yields and excellent enantioselectivities. Moreover, merging copper catalysis with gold catalysis realized a one-pot construction of the seven-membered ring to give annulated pyrroles with moderate to good yields and high enantiomeric excesses.
Collapse
|
31
|
Wang JJ, Feng X, Xun Z, Shi DQ, Huang ZB. Multicomponent Strategy to Pyrazolo[3,4-e]indolizine Derivatives under Microwave Irradiation. J Org Chem 2015; 80:8435-42. [PMID: 26193420 DOI: 10.1021/acs.joc.5b01314] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A simple and efficient one-pot construction of pyrazolo[3,4-e]indolizine derivatives via a diethylamine-catalyzed three-component domino reaction of arylglyoxals, cyclic 1,3-diones, and 5-aminopyrazoles under microwave irradiation is described. In this one-pot transformation, seven bonds and two new rings are efficiently formed. This synthesis was confirmed to follow the group-assisted-purification (GAP) chemistry process, which can avoid traditional recrystallization or chromatography purification methods.
Collapse
Affiliation(s)
- Jian-Jun Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Xian Feng
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Zhan Xun
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Da-Qing Shi
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Zhi-Bin Huang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| |
Collapse
|
32
|
Zou Y, Melvin JE, Gonzales SS, Spafford MJ, Smith AB. Total Synthesis of (-)-Nodulisporic Acid D. J Am Chem Soc 2015; 137:7095-8. [PMID: 26029849 DOI: 10.1021/jacs.5b04728] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A convergent total synthesis of the architecturally complex indole diterpenoid (-)-nodulisporic acid D has been achieved. Key synthetic transformations include vicinal difunctionalization of an advanced α,β-unsaturated aldehyde to form the E,F-trans-fused 5,6-ring system of the eastern hemisphere and a cascade cross-coupling/indolization protocol leading to the CDE multisubstituted indole core.
Collapse
Affiliation(s)
- Yike Zou
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Jason E Melvin
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Stephen S Gonzales
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Matthew J Spafford
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Amos B Smith
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| |
Collapse
|
33
|
Rull SG, Blandez JF, Fructos MR, Belderrain TR, Nicasio MC. CN Coupling of Indoles and Carbazoles with Aromatic Chlorides Catalyzed by a Single-Component NHC-Nickel(0) Precursor. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500030] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
34
|
Guo T, Huang F, Yu L, Yu Z. Indole synthesis through transition metal-catalyzed C–H activation. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.11.114] [Citation(s) in RCA: 138] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
35
|
Rotta-Loria NL, Borzenko A, Alsabeh PG, Lavery CB, Stradiotto M. Utilizing Mor-DalPhos/Palladium-Catalyzed Monoarylation in the Multicomponent One-Pot Synthesis of Indoles. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400903] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
36
|
Zhou Y, Zhou KD, Xu XP, Zhu YN, Wu Z, Ji SJ. A highly diastereoselective synthesis of chroman derivatives bearing spirocyclic N,O-acetals skeleton via a one-pot tandem reaction. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.10.073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
37
|
Huang F, Wu P, Wang L, Chen J, Sun C, Yu Z. Copper-Mediated Intramolecular Oxidative C–H/C–H Cross-Coupling of α-Oxo Ketene N,S-Acetals for Indole Synthesis. J Org Chem 2014; 79:10553-60. [DOI: 10.1021/jo5014542] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Fei Huang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People’s Republic of China
| | - Ping Wu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People’s Republic of China
| | - Liandi Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People’s Republic of China
| | - Jiping Chen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People’s Republic of China
| | - Chenglin Sun
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People’s Republic of China
| | - Zhengkun Yu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People’s Republic of China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, People’s Republic of China
| |
Collapse
|
38
|
Matcha K, Antonchick AP. Cascade Multicomponent Synthesis of Indoles, Pyrazoles, and Pyridazinones by Functionalization of Alkenes. Angew Chem Int Ed Engl 2014; 53:11960-4. [DOI: 10.1002/anie.201406464] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Indexed: 01/22/2023]
|
39
|
Matcha K, Antonchick AP. Mehrkomponentenkaskade zur Synthese von Indolen, Pyrazolen und Pyridazinonen durch Funktionalisierung von Alkenen. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406464] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
40
|
A highly diastereoselective five-component synthesis of 1-(alkylimino)-5,5-dicyano-3a-aryloctahydro-3-oxacyclobuta[cd]pentalene-1a,2,5a,5b(2H,3aH)-tetracarboxylates. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.07.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
41
|
Dinda BK, Basak S, Mal D. Regiospecific Synthesis of 7-Hydroxyindoles from Pyrroles by Anionic Benzannulation. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402486] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
42
|
Sivakumar S, Kumar RR. Domino Knoevenagel Condensation/Aza-Ene Addition/N-Cyclization Route to Functionalized Imidazo[1,2-a]pyridines and Pyrido[1,2-a]pyrimidines. ASIAN J ORG CHEM 2014. [DOI: 10.1002/ajoc.201402100] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
43
|
Chen C, Shang G, Zhou J, Yu Y, Li B, Peng J. Modular Synthesis of Benzimidazole-Fused Phenanthridines from 2-Arylbenzimidazoles and o-Dibromoarenes by a Palladium-Catalyzed Cascade Process. Org Lett 2014; 16:1872-5. [DOI: 10.1021/ol500248h] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Chunxia Chen
- Department of Chemistry and Chemical Engineering,
College of Science, and ‡Post-doctoral
Mobile Research Station of Forestry Engineering, Northeast Forestry University, Harbin 150040, P. R. China
| | - Guoning Shang
- Department of Chemistry and Chemical Engineering,
College of Science, and ‡Post-doctoral
Mobile Research Station of Forestry Engineering, Northeast Forestry University, Harbin 150040, P. R. China
| | - Jingjie Zhou
- Department of Chemistry and Chemical Engineering,
College of Science, and ‡Post-doctoral
Mobile Research Station of Forestry Engineering, Northeast Forestry University, Harbin 150040, P. R. China
| | - Yanhan Yu
- Department of Chemistry and Chemical Engineering,
College of Science, and ‡Post-doctoral
Mobile Research Station of Forestry Engineering, Northeast Forestry University, Harbin 150040, P. R. China
| | - Bin Li
- Department of Chemistry and Chemical Engineering,
College of Science, and ‡Post-doctoral
Mobile Research Station of Forestry Engineering, Northeast Forestry University, Harbin 150040, P. R. China
| | - Jinsong Peng
- Department of Chemistry and Chemical Engineering,
College of Science, and ‡Post-doctoral
Mobile Research Station of Forestry Engineering, Northeast Forestry University, Harbin 150040, P. R. China
| |
Collapse
|
44
|
Muzart J. Three to seven C–C or C–heteroatom bonds from domino reactions involving a Heck process. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.05.061] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
45
|
Wang HY, Anderson LL. Interrupted Fischer-indole intermediates via oxyarylation of alkenyl boronic acids. Org Lett 2013; 15:3362-5. [PMID: 23799801 DOI: 10.1021/ol401416r] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The oxyarylation of alkenyl boronic acids with N-arylbenzhydroxamic acids has been achieved under both copper-mediated and copper-catalyzed conditions to provide access to interrupted Fischer-indole intermediates. This transformation is believed to proceed through a copper-promoted C-O bond forming event followed by a [3,3] rearrangement. The scope of the method is described and mechanistic experiments are discussed.
Collapse
Affiliation(s)
- Heng-Yen Wang
- Department of Chemistry, University of Illinois, Chicago, Illinois 60607, USA
| | | |
Collapse
|
46
|
Feng X, Wang Q, Lin W, Dou GL, Huang ZB, Shi DQ. Highly Efficient Synthesis of Polysubstituted Pyrroles via Four-Component Domino Reaction. Org Lett 2013; 15:2542-5. [PMID: 24490761 DOI: 10.1021/ol4010382] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xian Feng
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and School of Safety Engineering, China University of Mining & Technology, Xuzhou 221116, P. R. China
| | - Qian Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and School of Safety Engineering, China University of Mining & Technology, Xuzhou 221116, P. R. China
| | - Wei Lin
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and School of Safety Engineering, China University of Mining & Technology, Xuzhou 221116, P. R. China
| | - Guo-Lan Dou
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and School of Safety Engineering, China University of Mining & Technology, Xuzhou 221116, P. R. China
| | - Zhi-Bin Huang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and School of Safety Engineering, China University of Mining & Technology, Xuzhou 221116, P. R. China
| | - Da-Qing Shi
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and School of Safety Engineering, China University of Mining & Technology, Xuzhou 221116, P. R. China
| |
Collapse
|
47
|
Zhang M, Xie F, Wang X, Yan F, Wang T, Chen M, Ding Y. Improved indole syntheses from anilines and vicinal diols by cooperative catalysis of ruthenium complex and acid. RSC Adv 2013. [DOI: 10.1039/c3ra40458g] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
48
|
Cao CP, Lin W, Hu MH, Huang ZB, Shi DQ. Highly efficient construction of pentacyclic benzo[b]indeno-[1,2,3-de][1,8]naphthyridine derivatives via four-component domino reaction. Chem Commun (Camb) 2013; 49:6983-5. [PMID: 23802198 DOI: 10.1039/c3cc43489c] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Cheng-Pao Cao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, PR China
| | | | | | | | | |
Collapse
|
49
|
Nguyen HH, Kurth MJ. Microwave-assisted synthesis of 3-nitroindoles from N-aryl enamines via intramolecular arene-alkene coupling. Org Lett 2012; 15:362-5. [PMID: 23268775 DOI: 10.1021/ol303314x] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A variety of N-aryl β-nitroenamines were effectively transformed into 3-nitroindoles in good yields and with complete regioselectivity via a rapid microwave (μW) assisted intramolecular arene-alkene coupling reaction. This report further demonstrates the versatility of this method by constructing 3-carboalkoxy- and 3-cyanoindoles. Optimization data, substrate scope, and applications are discussed.
Collapse
Affiliation(s)
- Huy H Nguyen
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, USA
| | | |
Collapse
|