1
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Wang XN, Wang Y, Wang N, Chen J, Qi C, Chang J. TMSOTf-Catalyzed Reactions of N-Arylynamides with Sulfilimines To Construct 2-Aminoindoles and α-Arylated Amidines. J Org Chem 2024. [PMID: 38178688 DOI: 10.1021/acs.joc.3c02342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
Here, we disclose an efficient TMSOTf-catalyzed C-H annulation of aryl-terminated N-arylynamides with sulfilimines, leading to the practical assembly of various valuable 2-aminoindoles in generally moderate to excellent yields with a broad range of functional groups, while nonaryl terminated N-arylynamides undergo TMSOTf-catalyzed aminative arylation with sulfilimines providing α-arylated amidines.
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Affiliation(s)
- Xiao-Na Wang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan Province 450001, P. R. China
| | - Yanan Wang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan Province 450001, P. R. China
| | - Nanfang Wang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan Province 450001, P. R. China
| | - Jinyue Chen
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan Province 450001, P. R. China
| | - Chaofan Qi
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan Province 450001, P. R. China
| | - Junbiao Chang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan Province 450001, P. R. China
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2
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Wei L, Xiao X, Cai M. Recyclable gold(I)-catalyzed heterocyclization of ynamides with benzyl or indolyl azides towards 2-aminoindoles or 3-amino-β-carbolines. Org Biomol Chem 2023; 21:8757-8766. [PMID: 37877426 DOI: 10.1039/d3ob01555f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
A highly efficient heterogeneous gold(I)-catalyzed heterocyclization of ynamides with benzyl or indolyl azides has been achieved in 1,2-dichloroethane under mild conditions via a heterogenized α-imino gold carbene intermediate using 5 mol% of SBA-15-anchored strongly hindered NHC-gold(I) complex [IPr-SBA-15-AuNTf2] as the catalyst, delivering a wide range of valuable 2-aminoindoles or 3-amino-β-carbolines in mostly good to excellent yields with high regioselectivity. Furthermore, the new heterogenized NHC-gold(I) complex displays the same catalytic activity as IPrAuNTf2 and is facile to recover by centrifugation of the reaction mixture and can be reused at least seven times without any appreciable drop in its catalytic activity.
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Affiliation(s)
- Li Wei
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China.
| | - Xiaoqiang Xiao
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China.
| | - Mingzhong Cai
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China.
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3
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Rakshit A, Dhara HN, Sahoo AK, Patel BK. The Renaissance of Organo Nitriles in Organic Synthesis. Chem Asian J 2022; 17:e202200792. [PMID: 36047749 DOI: 10.1002/asia.202200792] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 08/31/2022] [Indexed: 11/11/2022]
Abstract
In the arena of functional group-oriented organic synthesis, the nitrile or cyano functionality is of immense importance. The presence of nucleophilic N -atom, π-coordinating ability of the triple bond, and electrophilic C-center imparts unique and interesting reactivity. Owing to the ability of the nitrile to transform into various other functional groups or intermediates, the chemistry is very rich and diverse. In particular, the involvement of nitrile in numerous organic reactions such as inter- or intramolecular alkyne insertion, [2 + 2 + 2] cycloaddition with alkynes, [3 + 2] cycloaddition with azides, [4 + 2] cycloaddition with diene allow the synthesis of many important carbocycles and heterocycles. Furthermore, the nitrile serves as a directing group in many C-H bond functionalization reactions to introduce diverse functionality and participate as a radical acceptor in radical cascade strategies to obtain a large variety of functional molecules. This review mainly focuses on the reactivity and diverse synthetic application of the nitrile including C-H bond functionalization, alkyne insertion, cycloaddition, and thermal or photochemical cascade strategy. The objective of the current review aims at bringing out the striking collection of various nitrile-triggered organic transformations.
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Affiliation(s)
- Amitava Rakshit
- IIT Guwahati: Indian Institute of Technology Guwahati, Chemistry, INDIA
| | | | | | - Bhisma K Patel
- Indian Institute of Technology Guwahati, Chemistry, North Guwahati-781 039, 781 039, Guwahati, INDIA
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4
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Liu N, Sun H, Wang J, Zhang Z, Wang T. Ag(I)‐Catalyzed Synthesis of 2‐Aminoquinolines from 1‐Aminobutadiynes and Anilines. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ningning Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering Shaanxi Normal University No.620 West Chang'an Avenue Xi'an 710119 People's Republic of China
| | - Huaming Sun
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering Shaanxi Normal University No.620 West Chang'an Avenue Xi'an 710119 People's Republic of China
| | - Junying Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering Shaanxi Normal University No.620 West Chang'an Avenue Xi'an 710119 People's Republic of China
| | - Zunting Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering Shaanxi Normal University No.620 West Chang'an Avenue Xi'an 710119 People's Republic of China
| | - Tao Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering Shaanxi Normal University No.620 West Chang'an Avenue Xi'an 710119 People's Republic of China
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5
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Lenko I, Mamontov A, Alayrac C, Legay R, Witulski B. Media‐Driven Pd‐Catalyzed Reaction Cascades with 1,3‐Diynamides Leading Selectively to Either Indoles or Quinolines. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202110221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Illia Lenko
- Laboratoire de Chimie Moléculaire et Thio-organique CNRS UMR 6507 ENSICAEN & UNICAEN Normandie Univ. 6 Bvd Maréchal Juin 14050 Caen France
| | - Alexander Mamontov
- Laboratoire de Chimie Moléculaire et Thio-organique CNRS UMR 6507 ENSICAEN & UNICAEN Normandie Univ. 6 Bvd Maréchal Juin 14050 Caen France
| | - Carole Alayrac
- Laboratoire de Chimie Moléculaire et Thio-organique CNRS UMR 6507 ENSICAEN & UNICAEN Normandie Univ. 6 Bvd Maréchal Juin 14050 Caen France
| | - Rémi Legay
- Laboratoire de Chimie Moléculaire et Thio-organique CNRS UMR 6507 ENSICAEN & UNICAEN Normandie Univ. 6 Bvd Maréchal Juin 14050 Caen France
| | - Bernhard Witulski
- Laboratoire de Chimie Moléculaire et Thio-organique CNRS UMR 6507 ENSICAEN & UNICAEN Normandie Univ. 6 Bvd Maréchal Juin 14050 Caen France
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6
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Lenko I, Mamontov A, Alayrac C, Legay R, Witulski B. Media-Driven Pd-Catalyzed Reaction Cascades with 1,3-Diynamides Leading Selectively to Either Indoles or Quinolines. Angew Chem Int Ed Engl 2021; 60:22729-22734. [PMID: 34411395 DOI: 10.1002/anie.202110221] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Indexed: 11/10/2022]
Abstract
Divergent Pd-catalyzed reaction cascades with various 1,3-diynamides yielding either 2-amino-3-alkynylindoles or 2-amino-4-alkenylquinolines were established. Omitting or adding TBAF (tetrabutylammonium fluoride) to the reaction of N,N-(2-iodophenyl)(4-toluenesulfonyl)-1,3-diynamides with secondary or primary amines in the presence of KOH in THF and catalytic amounts of Pd(PPh3 )4 completely changed the outcome of the reaction. In the absence of TBAF, 2-amino-3-alkynylindoles were the sole products, while the presence of TBAF switched the product formation to 2-amino-4-alkenylquinolines. Deuterium labeling proceeded selectively at the C3 and C11 positions of the 2-amino-4-alkenylquinoline products and this suggests the unprecedented formation of [4]cumulenimines from 1,3-diynamides as reactive key intermediates.
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Affiliation(s)
- Illia Lenko
- Laboratoire de Chimie Moléculaire et Thio-organique, CNRS UMR 6507, ENSICAEN & UNICAEN, Normandie Univ., 6 Bvd Maréchal Juin, 14050, Caen, France
| | - Alexander Mamontov
- Laboratoire de Chimie Moléculaire et Thio-organique, CNRS UMR 6507, ENSICAEN & UNICAEN, Normandie Univ., 6 Bvd Maréchal Juin, 14050, Caen, France
| | - Carole Alayrac
- Laboratoire de Chimie Moléculaire et Thio-organique, CNRS UMR 6507, ENSICAEN & UNICAEN, Normandie Univ., 6 Bvd Maréchal Juin, 14050, Caen, France
| | - Rémi Legay
- Laboratoire de Chimie Moléculaire et Thio-organique, CNRS UMR 6507, ENSICAEN & UNICAEN, Normandie Univ., 6 Bvd Maréchal Juin, 14050, Caen, France
| | - Bernhard Witulski
- Laboratoire de Chimie Moléculaire et Thio-organique, CNRS UMR 6507, ENSICAEN & UNICAEN, Normandie Univ., 6 Bvd Maréchal Juin, 14050, Caen, France
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7
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Hao H, Schafer LL. Titanium-Catalyzed Hydroamination of an Organometallic Acetylide to Access Copper Enamides. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Han Hao
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, Canada V6T1Z1
| | - Laurel L. Schafer
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, Canada V6T1Z1
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8
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Synthesis of Indoles via Intermolecular and Intramolecular Cyclization by Using Palladium-Based Catalysts. Catalysts 2021. [DOI: 10.3390/catal11091018] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
As part of natural products or biologically active compounds, the synthesis of nitrogen-containing heterocycles is becoming incredibly valuable. Palladium is a transition metal that is widely utilized as a catalyst to facilitate carbon-carbon and carbon-heteroatom coupling; it is used in the synthesis of various heterocycles. This review includes the twelve years of successful indole synthesis using various palladium catalysts to establish carbon-carbon or carbon-nitrogen coupling, as well as the conditions that have been optimized.
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9
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Zhang J, Li Y, Zhang C, Wang XN, Chang J. Metal-Free [3+2] Annulation of Ynamides with Anthranils to Construct 2-Aminoindoles. Org Lett 2021; 23:2029-2035. [PMID: 33645992 DOI: 10.1021/acs.orglett.1c00158] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A novel metal-free [3+2] annulation of ynamides with anthranils provides a facile, flexible, environmentally friendly, and atom-economical route to 2-aminoindoles. This synthetic process proceeds with efficiency, excellent regioselectivity, and wide functional group tolerance under mild conditions. Moreover, the obtained 2-aminoindole products represent a multifunctional platform for the construction of various 2-aminoindolyl frameworks.
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Affiliation(s)
- Jingyi Zhang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Ying Li
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Chaofeng Zhang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Xiao-Na Wang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Junbiao Chang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
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10
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Hao H, Bagnol T, Pucheault M, Schafer LL. Using Catalysts To Make Catalysts: Titanium-Catalyzed Hydroamination To Access P,N-Ligands for Assembling Catalysts in One Pot. Org Lett 2021; 23:1974-1979. [PMID: 33661014 DOI: 10.1021/acs.orglett.0c04212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Using a diamido-bis(amidate) titanium precatalyst, the hydroamination of alkynylphosphines afforded phosphinoenamine products. After reduction, 2-aminophosphines are prepared in excellent yield and on gram scale. A broad variety of alkynylphosphines and primary amines with different electronic and steric features are tolerated in this sequential transformation, enabling the rapid assembly of a collection of ligands. Additionally, intermediate phosphinoenamines can be used directly as proligands for coordination to transition metals using protonolysis or salt metathesis reactions. These transformations result in easy-to-use one pot protocols to prepare metal P,N-complexes for catalysis or small molecule activation.
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Affiliation(s)
- Han Hao
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC Canada, V6T1Z1
| | - Thibault Bagnol
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC Canada, V6T1Z1.,Institut des Sciences Moléculaires Université de Bordeaux, Institut Européen de Chimie et Biologie 2 Rue Robert Escarpit, 33600 Pessac, France
| | - Mathieu Pucheault
- Institut des Sciences Moléculaires Université de Bordeaux, Institut Européen de Chimie et Biologie 2 Rue Robert Escarpit, 33600 Pessac, France
| | - Laurel L Schafer
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC Canada, V6T1Z1
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11
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Wen H, Yan W, Chen P, Li Y, Tang Y. Catalyst-Free [4+2] Cycloaddition of Ynamides with 2-Halomethyl Phenols To Construct 2-Amino-4 H-Chromenes and α-Halo Enamides Simultaneously. J Org Chem 2020; 85:12870-12881. [PMID: 33000945 DOI: 10.1021/acs.joc.0c01258] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We report the development of a facile protocol for the [4+2] cycloaddition of ynamides and 2-halomethyl phenols to afford the corresponding 2-amino-4H-chromenes and α-halo enamides under catalyst-free conditions. The reaction proceeds under mild conditions and exhibits good tolerance toward various functional groups and generates high yields. The plausible mechanism involves the formation of an active intermediate keteniminium as well as o-methylene quinone.
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Affiliation(s)
- Hao Wen
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road, Qingdao 266003, P. R. China
| | - Weibo Yan
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road, Qingdao 266003, P. R. China
| | - Ping Chen
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road, Qingdao 266003, P. R. China
| | - Yu Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road, Qingdao 266003, P. R. China
| | - Yu Tang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road, Qingdao 266003, P. R. China.,Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology Qingdao 266237, P. R. China
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12
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Di Nicola A, Marsicano V, Arcadi A, Michelet V. Room temperature palladium-catalyzed hydroarylation of ynamides in water. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151725] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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13
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Neto JSS, Zeni G. Recent advances in the synthesis of indoles from alkynes and nitrogen sources. Org Chem Front 2020. [DOI: 10.1039/c9qo01315f] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This review highlights ten years of success in the synthesis of indoles using alkynes and nitrogen sources as substrates.
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Affiliation(s)
- José Sebastião Santos Neto
- Laboratório de Síntese
- Reatividade
- Avaliação Farmacológica e Toxicológica de Organocalcogênios CCNE
- UFSM
- Santa Maria
| | - Gilson Zeni
- Laboratório de Síntese
- Reatividade
- Avaliação Farmacológica e Toxicológica de Organocalcogênios CCNE
- UFSM
- Santa Maria
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14
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Kim YH, Yoo HJ, Youn SW. Facile one-pot synthesis of 2-aminoindoles from simple anilines and ynamides. Chem Commun (Camb) 2020; 56:13963-13966. [DOI: 10.1039/d0cc06490d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly effective and facile one-pot reaction has been developed for the synthesis of 2-aminoindoles directly from anilines and ynamides.
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Affiliation(s)
- Young Ho Kim
- Center for New Directions in Organic Synthesis
- Department of Chemistry and Research Institute for Natural Sciences
- Hanyang University
- Seoul 04763
- Korea
| | - Huen Ji Yoo
- Center for New Directions in Organic Synthesis
- Department of Chemistry and Research Institute for Natural Sciences
- Hanyang University
- Seoul 04763
- Korea
| | - So Won Youn
- Center for New Directions in Organic Synthesis
- Department of Chemistry and Research Institute for Natural Sciences
- Hanyang University
- Seoul 04763
- Korea
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15
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Intramolecular Ullmann-type C−N coupling for the synthesis of substituted benzo[4,5]imidazo[1,2-a]pyrrolo[3,4-c]pyridines. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130473] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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16
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Jong JAW, Bao X, Wang Q, Zhu J. Formal [4+1] Cycloaddition ofo‐Aminobenzyl Chlorides with Isocyanides: Synthesis of 2‐Amino‐3‐Substituted Indoles. Helv Chim Acta 2019. [DOI: 10.1002/hlca.201900002] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Jacobus A. W. Jong
- Laboratory of Synthesis and Natural ProductsInstitute of Chemical Sciences and EngineeringEcole Polytechnique Fédérale de LausanneEPFL-SB-ISIC-LSPNBCH5304 CH-1015 Lausanne Switzerland
| | - Xu Bao
- Laboratory of Synthesis and Natural ProductsInstitute of Chemical Sciences and EngineeringEcole Polytechnique Fédérale de LausanneEPFL-SB-ISIC-LSPNBCH5304 CH-1015 Lausanne Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural ProductsInstitute of Chemical Sciences and EngineeringEcole Polytechnique Fédérale de LausanneEPFL-SB-ISIC-LSPNBCH5304 CH-1015 Lausanne Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural ProductsInstitute of Chemical Sciences and EngineeringEcole Polytechnique Fédérale de LausanneEPFL-SB-ISIC-LSPNBCH5304 CH-1015 Lausanne Switzerland
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17
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Zhang D, Man J, Chen Y, Yin L, Zhong J, Zhang QF. Synthesis of poly-functionalized benzofurans via one-pot domino oxidation/[3+2] cyclization reactions of a hydroquinone ester and ynamides. RSC Adv 2019; 9:12567-12571. [PMID: 35515817 PMCID: PMC9063667 DOI: 10.1039/c9ra02144b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 04/15/2019] [Indexed: 02/02/2023] Open
Abstract
Densely substituted amino-functionalized benzofurans were concisely accessed via the first one-pot domino oxidation/[3+2] cyclization of a hydroquinone ester and easily accessible ynamides under mild conditions in a short time. The complex benzofurans were able to be efficiently synthesized all from simple and inexpensive starting materials in two steps. Efficient method for the construction of poly-functionalized benzofurans has been developed via one-pot domino oxidation/[3+2] cyclization reactions.![]()
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Affiliation(s)
- Dongxin Zhang
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
| | - Jingjing Man
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
| | - Yan Chen
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
| | - Lei Yin
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
| | - Junchao Zhong
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
| | - Qian-Feng Zhang
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
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18
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Anitha M, Shankar M, Kumara Swamy KC. Reactivity of epoxy-ynamides with metal halides: nucleophile (Br/Cl/OH)-assisted tandem intramolecular 5-exo-digor 6-endo-digcyclisation and AgF2-promoted oxidation. Org Chem Front 2019. [DOI: 10.1039/c9qo00027e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Several metal halides (CuBr, LiCl, CuF2, AgF2) react with epoxy-ynamides to afford 1,3-oxazolidines, 1,4-oxazines or 1,2-dioxo-enamides.
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Affiliation(s)
- Mandala Anitha
- School of Chemistry
- University of Hyderabad
- Hyderabad 500 046
- India
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19
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Han P, Mao ZY, Si CM, Zhou Z, Wei BG, Lin GQ. Stereoselective Synthesis of Pyrido- and Pyrrolo[1,2-c][1,3]oxazin-1-ones via a Nucleophilic Addition–Cyclization Process of N,O-Acetal with Ynamides. J Org Chem 2018; 84:914-923. [DOI: 10.1021/acs.joc.8b02795] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Pan Han
- School of Pharmacy and Institutes of Biomedical Sciences, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Zhuo-Ya Mao
- School of Pharmacy and Institutes of Biomedical Sciences, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Chang-Mei Si
- School of Pharmacy and Institutes of Biomedical Sciences, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Zhu Zhou
- School of Pharmacy and Institutes of Biomedical Sciences, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Bang-Guo Wei
- School of Pharmacy and Institutes of Biomedical Sciences, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Guo-Qiang Lin
- School of Pharmacy and Institutes of Biomedical Sciences, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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20
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Behera A, Rakshit A, Sahoo AK, Patel BK. One Pot Sequential Synthesis of N
-[2-(Phenylsulfinyl)phenyl]acetamides: A Ring Opening Rearrangement Functionalization (RORF). European J Org Chem 2018. [DOI: 10.1002/ejoc.201801597] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Ahalya Behera
- Department of Chemistry; Indian Institute of Technology Guwahati; 781 039 North Guwahati Assam India
| | - Amitava Rakshit
- Department of Chemistry; Indian Institute of Technology Guwahati; 781 039 North Guwahati Assam India
| | - Ashish K. Sahoo
- Department of Chemistry; Indian Institute of Technology Guwahati; 781 039 North Guwahati Assam India
| | - Bhisma K. Patel
- Department of Chemistry; Indian Institute of Technology Guwahati; 781 039 North Guwahati Assam India
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21
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Thirupathi A, Janni M, Peruncheralathan S. Copper Catalyzed Intramolecular N-Arylation of Ketene Aminals at Room Temperature: Synthesis of 2-Amino-3-cyanoindoles. J Org Chem 2018; 83:8668-8678. [PMID: 29847946 DOI: 10.1021/acs.joc.8b00816] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Various 2-amino-3-cyanoindoles are synthesized through copper catalyzed intramolecular N-arylations of ketene aminals at room temperature for the first time with 60-99% yields within 0.1-2 h. Controlled regioselective N-arylations of unsymmetrical ketene aminals are also studied. Further, a new double heteroannulation approach is demonstrated for the synthesis of 11-aminoindolo[2,3- b]quinolines from acyclic and nonheterocyclic precursors.
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Affiliation(s)
- Annaram Thirupathi
- School of Chemical Sciences , National Institute of Science Education and Research (NISER) Bhubaneswar , HBNI, Jatni , Khurda 752050 , Odisha , India
| | - Manojkumar Janni
- School of Chemical Sciences , National Institute of Science Education and Research (NISER) Bhubaneswar , HBNI, Jatni , Khurda 752050 , Odisha , India
| | - Saravanan Peruncheralathan
- School of Chemical Sciences , National Institute of Science Education and Research (NISER) Bhubaneswar , HBNI, Jatni , Khurda 752050 , Odisha , India
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22
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Ghosh M, Ray JK. Ten years advancement in the synthetic applications of 2-bromo-cyclohexenecarbaldehydes and 2-bromobenzaldehydes and derived substrates under palladium-catalyzed cross-coupling conditions. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.05.053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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23
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Siva Reddy A, Leela Siva Kumari A, Swamy KK. Palladium-catalyzed regioselective synthesis of benzosultams from functionalized ynamides and benzotriazoles/tetrazoles. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.03.070] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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24
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Siva Kumari AL, Siva Reddy A, Swamy KCK. Transition Metal-Free Cascade Cyclization of Epoxy-Ynamides: To Go for 1,3-Oxazines or 1,4-Oxazines? Org Lett 2016; 18:5752-5755. [DOI: 10.1021/acs.orglett.6b03047] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- A. Leela Siva Kumari
- School of Chemistry, University of Hyderabad, Hyderabad-500046, Telangana, India
| | - Alla Siva Reddy
- School of Chemistry, University of Hyderabad, Hyderabad-500046, Telangana, India
| | - K. C. Kumara Swamy
- School of Chemistry, University of Hyderabad, Hyderabad-500046, Telangana, India
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25
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Yang Y, Liu H, Peng C, Wu J, Zhang J, Qiao Y, Wang XN, Chang J. AlCl3-Catalyzed Annulations of Ynamides Involving a Torquoselective Process for the Simultaneous Control of Central and Axial Chirality. Org Lett 2016; 18:5022-5025. [DOI: 10.1021/acs.orglett.6b02480] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yanyan Yang
- Collaborative Innovation
Center of New Drug Research and Safety Evaluation,
Henan Province, School of Pharmaceutical Sciences, and College of
Chemistry and Molecular Engineering, and ‡Department of Pathophysiology, School
of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Hongxu Liu
- Collaborative Innovation
Center of New Drug Research and Safety Evaluation,
Henan Province, School of Pharmaceutical Sciences, and College of
Chemistry and Molecular Engineering, and ‡Department of Pathophysiology, School
of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Cheng Peng
- Collaborative Innovation
Center of New Drug Research and Safety Evaluation,
Henan Province, School of Pharmaceutical Sciences, and College of
Chemistry and Molecular Engineering, and ‡Department of Pathophysiology, School
of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Jie Wu
- Collaborative Innovation
Center of New Drug Research and Safety Evaluation,
Henan Province, School of Pharmaceutical Sciences, and College of
Chemistry and Molecular Engineering, and ‡Department of Pathophysiology, School
of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Jingyi Zhang
- Collaborative Innovation
Center of New Drug Research and Safety Evaluation,
Henan Province, School of Pharmaceutical Sciences, and College of
Chemistry and Molecular Engineering, and ‡Department of Pathophysiology, School
of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Yan Qiao
- Collaborative Innovation
Center of New Drug Research and Safety Evaluation,
Henan Province, School of Pharmaceutical Sciences, and College of
Chemistry and Molecular Engineering, and ‡Department of Pathophysiology, School
of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Xiao-Na Wang
- Collaborative Innovation
Center of New Drug Research and Safety Evaluation,
Henan Province, School of Pharmaceutical Sciences, and College of
Chemistry and Molecular Engineering, and ‡Department of Pathophysiology, School
of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Junbiao Chang
- Collaborative Innovation
Center of New Drug Research and Safety Evaluation,
Henan Province, School of Pharmaceutical Sciences, and College of
Chemistry and Molecular Engineering, and ‡Department of Pathophysiology, School
of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China
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26
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Heinrich CF, Fabre I, Miesch L. Silver-Catalyzed 7-exo-
dig Cyclization of Silylenolether-ynesulfonamides. Angew Chem Int Ed Engl 2016; 55:5170-4. [DOI: 10.1002/anie.201510708] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 02/05/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Clément F. Heinrich
- Laboratoire de Chimie Organique Synthétique; Institut de Chimie; 1, rue Blaise Pascal, BP296/R8 67008 Strasbourg France
| | - Indira Fabre
- Département de Chimie, Ecole Normale Supérieure-PSL Research University; Sorbonne Universités-UPMC Univ Paris 06, CNRS UMR 8640 PASTEUR; 24, rue Lhomond 75005 Paris France
| | - Laurence Miesch
- Laboratoire de Chimie Organique Synthétique; Institut de Chimie; 1, rue Blaise Pascal, BP296/R8 67008 Strasbourg France
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27
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Heinrich CF, Fabre I, Miesch L. Silver-Catalyzed 7-exo-
dig Cyclization of Silylenolether-ynesulfonamides. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510708] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Clément F. Heinrich
- Laboratoire de Chimie Organique Synthétique; Institut de Chimie; 1, rue Blaise Pascal, BP296/R8 67008 Strasbourg France
| | - Indira Fabre
- Département de Chimie, Ecole Normale Supérieure-PSL Research University; Sorbonne Universités-UPMC Univ Paris 06, CNRS UMR 8640 PASTEUR; 24, rue Lhomond 75005 Paris France
| | - Laurence Miesch
- Laboratoire de Chimie Organique Synthétique; Institut de Chimie; 1, rue Blaise Pascal, BP296/R8 67008 Strasbourg France
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28
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Siva Reddy A, Siva Kumari AL, Saha S, Kumara Swamy KC. Palladium-Catalyzed Tandem-Cyclization of Functionalized Ynamides: An Approach to Benzosultams. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500854] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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29
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Kotipalli T, Kavala V, Janreddy D, Bandi V, Kuo CW, Yao CF. Synthesis of 2,3-Disubstituted Quinazolinone Derivatives through Copper Catalyzed C-H Amidation Reactions. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501552] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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30
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Liu H, Yang Y, Wu J, Wang XN, Chang J. Regioselective synthesis of 3,4-disubstituted isocoumarins through the Pd-catalyzed annulation of 2-iodoaromatic acids with ynamides. Chem Commun (Camb) 2016; 52:6801-4. [DOI: 10.1039/c6cc01565d] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Pd(0)-catalyzed annulation of 2-iodoaromatic acids with ynamides is described for the efficient synthesis of 3,4-disubstituted isocoumarins with excellent regioselectivities.
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Affiliation(s)
- Hongxu Liu
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Yanyan Yang
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Jie Wu
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Xiao-Na Wang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation
- Henan Province, and School of Pharmaceutical Sciences
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Junbiao Chang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation
- Henan Province, and School of Pharmaceutical Sciences
- Zhengzhou University
- Zhengzhou
- P. R. China
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31
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Liu H, Yang Y, Wang S, Wu J, Wang XN, Chang J. Synthesis of 3-Substituted 2-Aminochromones via Sn(IV)-Promoted Annulation of Ynamides with 2-Methoxyaroyl Chlorides. Org Lett 2015; 17:4472-5. [PMID: 26332185 DOI: 10.1021/acs.orglett.5b02137] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A Sn(IV)-promoted annulation reaction of ynamides is described for the efficient synthesis of 3-substituted 2-aminochromones under mild conditions. This novel method allows for a concomitant construction of C-C and C-O bonds between ynamides and 2-methoxyaroyl chlorides by a tandem Friedel-Crafts acylation/oxo-Michael addition/elimination strategy.
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Affiliation(s)
- Hongxu Liu
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, School of Pharmaceutical Sciences, and College of Chemistry and Molecular Engineering, Zhengzhou University , Zhengzhou, Henan 450001, P. R. China
| | - Yanyan Yang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, School of Pharmaceutical Sciences, and College of Chemistry and Molecular Engineering, Zhengzhou University , Zhengzhou, Henan 450001, P. R. China
| | - Shen Wang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, School of Pharmaceutical Sciences, and College of Chemistry and Molecular Engineering, Zhengzhou University , Zhengzhou, Henan 450001, P. R. China
| | - Jie Wu
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, School of Pharmaceutical Sciences, and College of Chemistry and Molecular Engineering, Zhengzhou University , Zhengzhou, Henan 450001, P. R. China
| | - Xiao-Na Wang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, School of Pharmaceutical Sciences, and College of Chemistry and Molecular Engineering, Zhengzhou University , Zhengzhou, Henan 450001, P. R. China
| | - Junbiao Chang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, School of Pharmaceutical Sciences, and College of Chemistry and Molecular Engineering, Zhengzhou University , Zhengzhou, Henan 450001, P. R. China
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32
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Shu C, Wang YH, Zhou B, Li XL, Ping YF, Lu X, Ye LW. Generation of α-Imino Gold Carbenes through Gold-Catalyzed Intermolecular Reaction of Azides with Ynamides. J Am Chem Soc 2015. [DOI: 10.1021/jacs.5b06015] [Citation(s) in RCA: 213] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Chao Shu
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, College of
Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yong-Heng Wang
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, College of
Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Bo Zhou
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, College of
Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xin-Ling Li
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, College of
Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yi-Fan Ping
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, College of
Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xin Lu
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, College of
Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Long-Wu Ye
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, College of
Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- State
Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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33
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Yu L, Deng Y, Cao J. Regioselective Synthesis of Highly Substituted Imidazoles via the Sequential Reaction of Allenyl Sulfonamides and Amines. J Org Chem 2015; 80:4729-35. [PMID: 25853897 DOI: 10.1021/acs.joc.5b00141] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel synthesis of imidazoles from electron-withdrawing group-substituted allenyl sulfonamides with amines was developed. The 4- and 5-functionalized imidazoles were constructed regioselectively, which depended on the substituents on the nitrogen atoms.
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Affiliation(s)
- Lian Yu
- Key Laboratory of Organosilicon Chemistry and Material Technology of the Ministry of Education, Hangzhou Normal University, Wenyi Road 222, Hangzhou 310012, People's Republic of China
| | - Yuan Deng
- Key Laboratory of Organosilicon Chemistry and Material Technology of the Ministry of Education, Hangzhou Normal University, Wenyi Road 222, Hangzhou 310012, People's Republic of China
| | - Jian Cao
- Key Laboratory of Organosilicon Chemistry and Material Technology of the Ministry of Education, Hangzhou Normal University, Wenyi Road 222, Hangzhou 310012, People's Republic of China
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34
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Hudson R, Bizier NP, Esdale KN, Katz JL. Synthesis of indoles, benzofurans, and related heterocycles via an acetylene-activated SNAr/intramolecular cyclization cascade sequence in water or DMSO. Org Biomol Chem 2015; 13:2273-84. [DOI: 10.1039/c4ob02549k] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The synthesis of 2-substituted indoles and benzofurans was achieved by nucleophilic aromatic substitution, followed by subsequent 5-endo-dig cyclization between the nucleophile and an ortho acetylene.
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Affiliation(s)
- R. Hudson
- Department of Chemistry
- Colby College
- Waterville
- USA
| | - N. P. Bizier
- Division of Natural Sciences
- Daemen College
- Amherst
- USA
| | - K. N. Esdale
- Department of Chemistry
- Colby College
- Waterville
- USA
| | - J. L. Katz
- Department of Chemistry
- Colby College
- Waterville
- USA
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35
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Vijay Kumar S, Saraiah B, Parameshwarappa G, Ila H, Verma GK. Synthesis of N-Functionalized/NH-Multisubstituted Indoles, Thienopyrroles, Pyrroloindoles, and Pyrazolopyrroles via Sequential One-Pot Base-Mediated and Copper-Catalyzed Inter- and Intramolecular Amination of 2-[2-Bromo(het)aryl]-3-(het)aryl-3-(methylthio)acrylonitriles. J Org Chem 2014; 79:7961-78. [DOI: 10.1021/jo501114a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- S. Vijay Kumar
- New
Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - B. Saraiah
- New
Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - G. Parameshwarappa
- New
Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - H. Ila
- New
Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - Girijesh K. Verma
- Department
of Chemistry, Banaras Hindu University, Varanasi 221005, India
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36
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Yu L, Cao J. Synthesis of α,β-unsaturated amides and iminocoumarins from N,N-disulfonyl ynamides with aldehydes via the ketenimine intermediate. Org Biomol Chem 2014; 12:3986-90. [DOI: 10.1039/c4ob00513a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Huang Z, Shang R, Zhang ZR, Tan XD, Xiao X, Fu Y. Copper-Catalyzed Decarboxylative Coupling of Alkynyl Carboxylates with 1,1-Dibromo-1-alkenes. J Org Chem 2013; 78:4551-7. [DOI: 10.1021/jo400616r] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Zheng Huang
- Anhui Province
Key Laboratory of Biomass Clean Energy,
Collaborative Innovative Center of Chemistry for Energy Materials,
and Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Rui Shang
- Anhui Province
Key Laboratory of Biomass Clean Energy,
Collaborative Innovative Center of Chemistry for Energy Materials,
and Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Zi-Rong Zhang
- Anhui Province
Key Laboratory of Biomass Clean Energy,
Collaborative Innovative Center of Chemistry for Energy Materials,
and Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Xiao-Dan Tan
- Anhui Province
Key Laboratory of Biomass Clean Energy,
Collaborative Innovative Center of Chemistry for Energy Materials,
and Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Xiao Xiao
- Anhui Province
Key Laboratory of Biomass Clean Energy,
Collaborative Innovative Center of Chemistry for Energy Materials,
and Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Yao Fu
- Anhui Province
Key Laboratory of Biomass Clean Energy,
Collaborative Innovative Center of Chemistry for Energy Materials,
and Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
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38
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Assembly of N-Containing Heterocycles via Pd- and Cu-Catalyzed C–N Bond Formation Reactions. TOP ORGANOMETAL CHEM 2013. [DOI: 10.1007/3418_2013_61] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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39
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Minko Y, Pasco M, Lercher L, Marek I. Stereodefined trisubstituted enolates as a unique entry to all-carbon quaternary stereogenic centers in acyclic systems. Nat Protoc 2013; 8:749-54. [PMID: 23518666 DOI: 10.1038/nprot.2013.036] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
This protocol describes a new approach for the preparation of stereodefined trisubstituted chiral enolate species, avoiding conventional asymmetric enolization of carbonyl compounds. This protocol was developed as a single-flask synthetic sequence and therefore does not require isolation or purification of intermediate compounds. The sequence starts from a regioselective carbocupration reaction of readily accessible chiral ynamides; this is followed by oxidation of the generated vinylcuprate with a commonly available oxidizing reagent (tert-butyl hydroperoxide) in order to generate an enolate that completely retains its configuration. This synthetic protocol has been applied to the preparation of aldol and Mannich-type adducts. The procedure reported here requires a simple reaction setup commonly available in all synthetic laboratories and takes ∼6 h for completion and 2 h for isolation and purification. Final products are valuable diastereomerically and enantiomerically enriched building blocks for organic synthesis containing all-carbon quaternary stereocenters in acyclic systems.
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Affiliation(s)
- Yury Minko
- The Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of Chemistry and the Lise Meitner-Minerva Center for Computational Quantum Chemistry, Technion-Israel Institute of Technology, Haifa, Israel
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40
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Minko Y, Pasco M, Chechik H, Marek I. Regio- and stereoselective carbometallation reactions of N-alkynylamides and sulfonamides. Beilstein J Org Chem 2013; 9:526-32. [PMID: 23616793 PMCID: PMC3628878 DOI: 10.3762/bjoc.9.57] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Accepted: 02/21/2013] [Indexed: 01/26/2023] Open
Abstract
The carbocupration reactions of heterosubstituted alkynes allow the regio- and stereoselective formation of vinyl organometallic species. N-Alkynylamides (ynamides) are particularly useful substrates for the highly regioselective carbocupration reaction, as they lead to the stereodefined formation of vinylcopper species geminated to the amide moiety. The latter species are involved in numerous synthetically useful transformations leading to valuable building blocks in organic synthesis. Here we describe in full the results of our studies related to the carbometallation reactions of N-alkynylamides.
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Affiliation(s)
- Yury Minko
- The Mallat Family Organic Chemistry Laboratory, Schulich Faculty of Chemistry, and the Lise Meitner-Minerva Center for Computational Quantum Chemistry, Technion - Israel Institute of Technology, Haifa 32000, Israel
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41
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Kong Y, Jiang K, Cao J, Fu L, Yu L, Lai G, Cui Y, Hu Z, Wang G. Synthesis of 3-Alkyl- or 3-Allenyl-2-amidobenzofurans via Electrophilic Cyclization of o-Anisole-Substituted Ynamides with Carbocations. Org Lett 2013; 15:422-5. [DOI: 10.1021/ol303474a] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Yulong Kong
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Wenyi Road 222, Hangzhou 310012, People’s Republic of China
| | - Kezhi Jiang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Wenyi Road 222, Hangzhou 310012, People’s Republic of China
| | - Jian Cao
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Wenyi Road 222, Hangzhou 310012, People’s Republic of China
| | - Lingzi Fu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Wenyi Road 222, Hangzhou 310012, People’s Republic of China
| | - Lian Yu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Wenyi Road 222, Hangzhou 310012, People’s Republic of China
| | - Guoqiao Lai
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Wenyi Road 222, Hangzhou 310012, People’s Republic of China
| | - Yuming Cui
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Wenyi Road 222, Hangzhou 310012, People’s Republic of China
| | - Ziqiang Hu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Wenyi Road 222, Hangzhou 310012, People’s Republic of China
| | - Guanhai Wang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Wenyi Road 222, Hangzhou 310012, People’s Republic of China
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42
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Xiao Q, Luo Y, Yan Y, Ding Q, Wu J. A palladium-catalyzed reaction of 2-alkynylbromobenzene with 2-(2-alkynyl)benzenesulfonamide. RSC Adv 2013. [DOI: 10.1039/c3ra40582f] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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43
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Ball CJ, Willis MC. Cascade Palladium- and Copper-Catalysed Aromatic Heterocycle Synthesis: The Emergence of General Precursors. European J Org Chem 2012. [DOI: 10.1002/ejoc.201201386] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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44
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Surasani R, Kalita D, Rao AVD, Chandrasekhar KB. Palladium-catalyzed C-N and C-O bond formation of N-substituted 4-bromo-7-azaindoles with amides, amines, amino acid esters and phenols. Beilstein J Org Chem 2012; 8:2004-18. [PMID: 23209536 PMCID: PMC3511036 DOI: 10.3762/bjoc.8.227] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Accepted: 10/26/2012] [Indexed: 01/15/2023] Open
Abstract
Simple and efficient procedures for palladium-catalyzed cross-coupling reactions of N-substituted 4-bromo-7-azaindole (1H-pyrrole[2,3-b]pyridine), with amides, amines, amino acid esters and phenols through C-N and C-O bond formation have been developed. The C-N cross-coupling reaction of amides, amines and amino acid esters takes place rapidly by using the combination of Xantphos, Cs(2)CO(3), dioxane and palladium catalyst precursors Pd(OAc)(2)/Pd(2)(dba)(3). The combination of Pd(OAc)(2), Xantphos, K(2)CO(3) and dioxane was found to be crucial for the C-O cross-coupling reaction. This is the first report on coupling of amides, amino acid esters and phenols with N-protected 4-bromo-7-azaindole derivatives.
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Affiliation(s)
- Rajendra Surasani
- Custom Pharmaceutical Services, Dr. Reddy’s Laboratories Ltd., Miyapur, Hyderabad 50049, India
- Department of Chemistry, Institute of Science and Technology, JNTU University of Anantapur, Anantapur 515002, India
| | - Dipak Kalita
- Custom Pharmaceutical Services, Dr. Reddy’s Laboratories Ltd., Miyapur, Hyderabad 50049, India
| | - A V Dhanunjaya Rao
- Custom Pharmaceutical Services, Dr. Reddy’s Laboratories Ltd., Miyapur, Hyderabad 50049, India
| | - K B Chandrasekhar
- Department of Chemistry, Institute of Science and Technology, JNTU University of Anantapur, Anantapur 515002, India
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Yang Y, Zhang X, Liang Y. Copper-catalyzed coupling of 1,2-dibromo-1-styrenes with sulfonamides for the preparation of ynamides. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.09.092] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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46
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Prakash KS, Nagarajan R. A General Method for the Synthesis of 5H-Benzo[b]-, Carbazolo[2,3-b]- and Indolo[2,3-b]carbazole Derivatives via Copper(II) Triflate-Catalyzed Heteroannulation. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201100887] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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47
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Affiliation(s)
- Morteza Shiri
- Department of Chemistry, Faculty of Science, Alzahra University, Vanak, Tehran, Iran.
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48
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Cai S, Wang F, Xi C. Assembly of 3-Substituted Isocoumarins via a CuI-Catalyzed Domino Coupling/Addition/Deacylation Process. J Org Chem 2012; 77:2331-6. [DOI: 10.1021/jo2026433] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shangjun Cai
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Fei Wang
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Chanjuan Xi
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
- State Key Laboratory of Elemento-Organic
Chemistry, Nankai University, Tianjin 300071,
China
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49
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Li Z, Hong J, Weng L, Zhou X. Facile synthesis of sulfenyl-substituted isocoumarins, heterocycle-fused pyrones and 3-(inden-1-ylidene)isobenzofuranones by FeCl3-promoted regioselective annulation of o-(1-alkynyl)benzoates and o-(1-alkynyl)heterocyclic carboxylates with disulfides. Tetrahedron 2012. [DOI: 10.1016/j.tet.2011.12.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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50
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Pan X, Luo Y, Liu G, Pu S, Wu J. Generation of 11‐Fluoro‐11
H
‐indeno[1,2‐
c
]quinolines
via
a Palladium‐Catalyzed Three‐Component Reaction of 2‐Alkynylbromobenzenes, 2‐Alkynylanilines, and
N
‐Fluorobenzenesulfonimide. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201100582] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xiaolin Pan
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, People's Republic of China, Fax: (+86)‐216‐564‐1740
| | - Yong Luo
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, People's Republic of China, Fax: (+86)‐216‐564‐1740
| | - Gang Liu
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, People's Republic of China, Fax: (+86)‐216‐564‐1740
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi 330013, People's Republic of China
| | - Shouzhi Pu
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi 330013, People's Republic of China
| | - Jie Wu
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, People's Republic of China, Fax: (+86)‐216‐564‐1740
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