1
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Ma J, Feng R, Zhou HL, Hao EJ, Shi Z, Dong ZB. One-Pot Synthesis of N,N-Diphenyl-2-benzothiazolamines from 1-(2-Iodophenyl)-3-phenylthioureas and Iodobenzenes. J Org Chem 2022; 87:14342-14351. [PMID: 36200367 DOI: 10.1021/acs.joc.2c01789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient copper-catalyzed synthesis of a variety of N,N-diphenyl-2-benzothiazolamines was developed. Starting from substituted 1-(2-iodophenyl)-3-phenylthioureas and substituted iodobenzenes, the reaction proceeded smoothly via a tandem manner in the presence of CuI to afford the corresponding N,N-diphenyl-2-benzothiazolamine derivatives with good functional group tolerance. The protocol features simple performance, easily available starting materials, a one-pot manner, and good functional group tolerance, providing a practical strategy for the preparation of poly-functionalized amines.
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Affiliation(s)
- Jie Ma
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Rong Feng
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Hao-Lin Zhou
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Er-Jun Hao
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Zhen Shi
- Hubei Key Laboratory of Biologic Resources Protection and Utilization, Hubei Minzu University, Enshi 445000, China
| | - Zhi-Bing Dong
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China.,Key Laboratory of Green Chemical Process, Ministry of Education, Wuhan Institute of Technology, Wuhan 430205, China.,Hubei Key Laboratory of Novel Reactor and Green Chemistry Technology, Wuhan Institute of Technology, Wuhan 430205, China.,Hubei Key Laboratory of Biologic Resources Protection and Utilization, Hubei Minzu University, Enshi 445000, China
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2
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Lei J, Li SQ, Luo YF, Tang DY, Zhou CH, Li HY, Xu ZG, Chen ZZ. Zn(OTf) 2-Promoted Isocyanide-Based Three-Component Reaction: Direct Access to 2-Oxazolines and β-Amino Amides. J Org Chem 2022; 87:11888-11898. [PMID: 35976796 DOI: 10.1021/acs.joc.2c01437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient one-pot reaction of propargylamides, isocyanides, and water catalyzed by zinc was developed for the rapid construction of 2-oxazolines with a wide functional group tolerance. The methylene-3-oxazoline was proven to play a vitally important role to start the tandem cascade transformation through unfunctionalized alkynes with sequential nucleophilic addition approaches of isocyanide and water. Notably, with a slight alteration of the reaction temperature and the addition of one molecule of water, various β-amino amide derivatives were synthesized in good to excellent yields.
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Affiliation(s)
- Jie Lei
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, China
| | - Shi-Qiang Li
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, China
| | - Ya-Fei Luo
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, China
| | - Dian-Yong Tang
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, China
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Hong-Yu Li
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, United States
| | - Zhi-Gang Xu
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, China
| | - Zhong-Zhu Chen
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, China
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3
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Jangir N, Poonam, Dhadda S, Jangid DK. Recent advances in the synthesis of five‐ and six‐membered heterocycles as bioactive skeleton: A concise overview. ChemistrySelect 2022. [DOI: 10.1002/slct.202103139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Nidhi Jangir
- Department of Chemistry (Centre of Advanced Study) University of Rajasthan JLN Marg Jaipur Rajasthan India- 302004
| | - Poonam
- Department of Chemistry (Centre of Advanced Study) University of Rajasthan JLN Marg Jaipur Rajasthan India- 302004
| | - Surbhi Dhadda
- Department of Chemistry (Centre of Advanced Study) University of Rajasthan JLN Marg Jaipur Rajasthan India- 302004
| | - Dinesh K. Jangid
- Department of Chemistry (Centre of Advanced Study) University of Rajasthan JLN Marg Jaipur Rajasthan India- 302004
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4
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Chen S, Oliva M, Van Meervelt L, Van der Eycken EV, Sharma UK. Palladium‐Catalyzed Domino Synthesis of 2,3‐Difunctionalized Indoles
via
Migratory Insertion of Isocyanides in Batch and Continuous Flow. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100339] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Su Chen
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC) Department of Chemistry University of Leuven (KU Leuven) Celestijnenlaan 200F B-3001 Leuven Belgium
| | - Monica Oliva
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC) Department of Chemistry University of Leuven (KU Leuven) Celestijnenlaan 200F B-3001 Leuven Belgium
| | - Luc Van Meervelt
- Biomolecular Architecture Department of Chemistry KU Leuven Celestijnenlaan 200F B-3001 Leuven Belgium
| | - Erik V. Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC) Department of Chemistry University of Leuven (KU Leuven) Celestijnenlaan 200F B-3001 Leuven Belgium
- Peoples' Friendship University of Russia (RUDN University) Miklukho-Maklaya street 6 RU-117198 Moscow Russia
| | - Upendra K. Sharma
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC) Department of Chemistry University of Leuven (KU Leuven) Celestijnenlaan 200F B-3001 Leuven Belgium
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5
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Bandehali-Naeini F, Shiri M, Ramezani B, Rajai-Daryasarei S. Quinoline-Based Polyazaheterocycles by a Hydrogen Peroxide-Mediated Isocyanide Insertion. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2019.1599403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
| | - Morteza Shiri
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Vanak, Tehran, Iran
| | - Bahareh Ramezani
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Vanak, Tehran, Iran
| | - Saideh Rajai-Daryasarei
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Vanak, Tehran, Iran
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6
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Antenucci A, Barbero M, Dughera S, Ghigo G. Copper catalysed Gomberg-Bachmann-Hey reactions of arenediazonium tetrafluoroborates and heteroarenediazonium o-benzenedisulfonimides. Synthetic and mechanistic aspects. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131632] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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7
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Li X, Mai S, Li X, Xu J, Xu H, Song Q. Cu-Catalyzed o-Amino Benzofuranthioether Formation from N-Tosylhydrazone-Bearing Thiocarbamates and Arylative Electrophiles. Org Lett 2020; 22:7874-7878. [PMID: 32990445 DOI: 10.1021/acs.orglett.0c02778] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An important framework of o-amino benzofuranthioethers was constructed by Cu-catalyzed arylative cyclization of N-tosylhydrazone-bearing thiocarbamates with silylaryl triflates or ArI. This transformation provides a novel strategy for the synthesis of valuable arylative o-amino benzofuranthioethers in moderate yields which could not be obtained from known methods. The reaction features smart design, efficient construction, and mild reaction conditions.
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Affiliation(s)
- Xue Li
- Institute of Next Generation Matter Transformation, College of Material Sciences Engineering, Huaqiao University, Xiamen, Fujian 361021, P.R. China
| | - Shaoyu Mai
- Institute of Next Generation Matter Transformation, College of Material Sciences Engineering, Huaqiao University, Xiamen, Fujian 361021, P.R. China
| | - Xin Li
- Institute of Next Generation Matter Transformation, College of Material Sciences Engineering, Huaqiao University, Xiamen, Fujian 361021, P.R. China
| | - Jian Xu
- Institute of Next Generation Matter Transformation, College of Material Sciences Engineering, Huaqiao University, Xiamen, Fujian 361021, P.R. China
| | - Hetao Xu
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian 350108, P.R. China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation, College of Material Sciences Engineering, Huaqiao University, Xiamen, Fujian 361021, P.R. China.,Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian 350108, P.R. China
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8
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Gujjarappa R, Vodnala N, Reddy VG, Malakar CC. A Facile C‐H Insertion Strategy using Combination of HFIP and Isocyanides: Metal‐Free Access to Azole Derivatives. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000481] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Raghuram Gujjarappa
- Department of Chemistry National Institute of Technology Manipur, Langol Imphal 795004, Manipur India
| | - Nagaraju Vodnala
- Department of Chemistry National Institute of Technology Manipur, Langol Imphal 795004, Manipur India
| | - Velma Ganga Reddy
- Centre for Advanced Materials & Industrial Chemistry (CAMIC) School of Science RMIT University GPO Box 2476 Melbourne 3001 Australia
| | - Chandi C. Malakar
- Department of Chemistry National Institute of Technology Manipur, Langol Imphal 795004, Manipur India
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9
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Sahoo K, Pradhan P, Panda N. Access to C4-arylated benzoxazoles from 2-amidophenol through C-H activation. Org Biomol Chem 2020; 18:1820-1832. [PMID: 32100813 DOI: 10.1039/d0ob00061b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A Pd-catalyzed aerobic approach to access C4-aryl benzoxazoles by tandem C-H ortho-arylation and acid-mediated annulation of 2-amidophenol has been presented. The directing potential of the -NHCOR group over the -OH group was exploited for selective arylation adjacent to the amide group. Deuterium labeling experiments suggest that palladation predominantly occurs adjacent to the -NHCOR group and is the key step during benzoxazole formation. One-pot hydrolysis of the resulting C4-arylated benzoxazole was also accomplished to access structurally challenging 3-aryl aminophenols for further applications.
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Affiliation(s)
- Kanchanbala Sahoo
- Department of Chemistry, National Institute of Technology Rourkela, Odisha 769008, India.
| | - Priyanka Pradhan
- Department of Chemistry, National Institute of Technology Rourkela, Odisha 769008, India.
| | - Niranjan Panda
- Department of Chemistry, National Institute of Technology Rourkela, Odisha 769008, India.
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10
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Arfan M, Tahira A, Mannan A, Fatima T. A Facile Approach to the Synthesis of Benzothiazoles from N-Protected Amino Acids. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1070428020020190] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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11
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Cao M, Teng QH, Xi ZW, Liu LQ, Gu RY, Wang YC. Facile synthesis of 2-alkynyl oxazoles via a Ce(OTf) 3-catalyzed cascade reaction of alkynyl carboxylic acids with tert-butyl isocyanide. Org Biomol Chem 2020; 18:655-659. [PMID: 31930236 DOI: 10.1039/c9ob02337b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
We developed an efficient and novel protocol to synthesize 2-alkynyl oxazoles from tert-butyl isocyanide and alkynyl carboxylic acids. This method allowed the synthesis of diversely functionalized oxazoles under mild reaction conditions, coupled with operational simplicity and these functionalized oxazoles showed a certain degree of biological activity. Moreover, compounds 2b, 2h, 2k, 2n, 2p and 2t exhibited good anticancer activities in human gastric cancer cells (MGC803) and human bladder tumor cells (T24), with IC50 below 20.0 μM.
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Affiliation(s)
- Ming Cao
- National Demonstration Center for Experimental Chemistry Education, Hunan Engineering Laboratory for Analyse and Drugs Development of Ethnomedicine in Wuling Mountains, Jishou University, Jishou 416000, P. R. China.
| | - Qing-Hu Teng
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Zhi-Wei Xi
- National Demonstration Center for Experimental Chemistry Education, Hunan Engineering Laboratory for Analyse and Drugs Development of Ethnomedicine in Wuling Mountains, Jishou University, Jishou 416000, P. R. China.
| | - Li-Qiu Liu
- National Demonstration Center for Experimental Chemistry Education, Hunan Engineering Laboratory for Analyse and Drugs Development of Ethnomedicine in Wuling Mountains, Jishou University, Jishou 416000, P. R. China.
| | - Ren-Yong Gu
- National Demonstration Center for Experimental Chemistry Education, Hunan Engineering Laboratory for Analyse and Drugs Development of Ethnomedicine in Wuling Mountains, Jishou University, Jishou 416000, P. R. China.
| | - Ying-Chun Wang
- National Demonstration Center for Experimental Chemistry Education, Hunan Engineering Laboratory for Analyse and Drugs Development of Ethnomedicine in Wuling Mountains, Jishou University, Jishou 416000, P. R. China.
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12
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Kaur N. Metal and Non-Metal Catalysts in the Synthesis of Five-Membered S-Heterocycles. Curr Org Synth 2020; 16:258-275. [PMID: 31975675 DOI: 10.2174/1570179416666181207144430] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 11/19/2018] [Accepted: 11/29/2018] [Indexed: 12/20/2022]
Abstract
BACKGROUND A wide variety of biological activities are exhibited by N, O and S containing heterocycles and recently, many reports appeared for the synthesis of these heterocycles. The synthesis of heterocycles with the help of metal and non-metal catalyst has become a highly rewarding and important method in organic synthesis. This review article concentrated on the synthesis of S-heterocylces in the presence of metal and non-metal catalyst. The synthesis of five-membered S-heterocycles is described here. OBJECTIVE There is a need for the development of rapid, efficient and versatile strategy for the synthesis of heterocyclic rings. Metal, non-metal and organocatalysis involving methods have gained prominence because traditional conditions have disadvantages such as long reaction times, harsh conditions and limited substrate scope. CONCLUSION The metal-, non-metal-, and organocatalyst assisted organic synthesis is a highly dynamic research field. For ßthe chemoselective and efficient synthesis of heterocyclic molecules, this protocol has emerged as a powerful route. Various methodologies in the past few years have been pointed out to pursue more sustainable, efficient and environmentally benign procedures and products. Among these processes, the development of new protocols (catalysis), which avoided the use of toxic reagents, are the focus of intense research.
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Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali Vidyapith, Banasthali-304022, Rajasthan, India
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13
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Ni Z, Mou C, Zhu X, Qi P, Yang S, Chi YR, Jin Z. Carbene-Catalyzed Formal [3+3] Cycloaddition Reaction for Access to Substituted 2-Phenylbenzothiazoles. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901773] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Zhibin Ni
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering; Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education; Guizhou University; 550025 Guiyang Huaxi District China
| | - Chengli Mou
- School of Pharmacy; Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education; Guizhou University of Traditional Chinese Medicine; 550025 Guiyang Huaxi District China
- Division of Chemistry & Biological Chemistry; School of Physical & Mathematical Sciences; Nanyang Technological University; 637371 Singapore Singapore
| | - Xun Zhu
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering; Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education; Guizhou University; 550025 Guiyang Huaxi District China
| | - Puying Qi
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering; Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education; Guizhou University; 550025 Guiyang Huaxi District China
| | - Song Yang
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering; Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education; Guizhou University; 550025 Guiyang Huaxi District China
| | - Yonggui Robin Chi
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering; Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education; Guizhou University; 550025 Guiyang Huaxi District China
- Division of Chemistry & Biological Chemistry; School of Physical & Mathematical Sciences; Nanyang Technological University; 637371 Singapore Singapore
| | - Zhichao Jin
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering; Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education; Guizhou University; 550025 Guiyang Huaxi District China
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14
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Tian Q, Luo W, Gan Z, Li D, Dai Z, Wang H, Wang X, Yuan J. Eco-Friendly Syntheses of 2-Substituted Benzoxazoles and 2-Substituted Benzothiazoles from 2-Aminophenols, 2-Aminothiophenols and DMF Derivatives in the Presence of Imidazolium Chloride. Molecules 2019; 24:E174. [PMID: 30621218 PMCID: PMC6337447 DOI: 10.3390/molecules24010174] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 12/24/2018] [Accepted: 12/29/2018] [Indexed: 11/17/2022] Open
Abstract
A simple, economical and metal-free approach to the synthesis of 2-substituted benzoxazoles and 2-substituted benzothiazoles from 2-aminophenols, 2-aminothiophenols and DMF derivatives, only using imidazolium chloride (50% mmol) as promoter without any other additive, was reported. Various 2-substituted benzoxazoles and 2-substituted benzothiazoles were thus prepared in moderate to excellent yields.
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Affiliation(s)
- Qingqiang Tian
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Wen Luo
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Zongjie Gan
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Dan Li
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Zeshu Dai
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Huajun Wang
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Xuetong Wang
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Jianyong Yuan
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
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15
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Affiliation(s)
- Jasper Biemolt
- Department of Chemistry & Pharmaceutical Sciences and Amsterdam; Institute for Molecules; Medicines & Systems; Vrije Universiteit Amsterdam; De Boelelaan 1108 1081HZ Amsterdam The Netherlands
| | - Eelco Ruijter
- Department of Chemistry & Pharmaceutical Sciences and Amsterdam; Institute for Molecules; Medicines & Systems; Vrije Universiteit Amsterdam; De Boelelaan 1108 1081HZ Amsterdam The Netherlands
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16
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Qian C, Liu K, Tao SW, Zhang FL, Zhu YM, Yang SL. Palladium-Catalyzed Oxidative Three-Component Coupling of Anthranilamides with Isocyanides and Arylboronic Acids: Access to 2,3-Disubstituted Quinazolinones. J Org Chem 2018; 83:9201-9209. [DOI: 10.1021/acs.joc.8b01218] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chun Qian
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
- School of Pharmaceutical Sciences, Guizhou University, Guiyang 550000, China
| | - Kui Liu
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Shou-Wei Tao
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Fang-Ling Zhang
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Yong-Ming Zhu
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Shi-Lin Yang
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
- School of Pharmaceutical Sciences, Guizhou University, Guiyang 550000, China
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17
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Wang B, Jiang C, Qian J, Zhang S, Jia X, Yuan Y. Synthesis of 2-methylbenzoxazoles directly from N-phenylacetamides catalyzed by palladium acetate. Org Biomol Chem 2018; 16:101-107. [DOI: 10.1039/c7ob02566a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A method to synthesize 2-methylbenzoxazoles directly from N-phenylacetamides catalyzed by Pd(OAc)2 in moderate to excellent yields has been achieved.
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Affiliation(s)
- Biying Wang
- School of Chemistry and Chemical Engineering
- Yangzhou University
- 225002 Yangzhou
- People's Republic of China
| | - Chengfei Jiang
- School of Chemistry and Chemical Engineering
- Yangzhou University
- 225002 Yangzhou
- People's Republic of China
| | - Jiasheng Qian
- School of Chemistry and Chemical Engineering
- Yangzhou University
- 225002 Yangzhou
- People's Republic of China
| | - Shuwei Zhang
- School of Chemistry and Chemical Engineering
- Yangzhou University
- 225002 Yangzhou
- People's Republic of China
| | - Xiaodong Jia
- School of Chemistry and Chemical Engineering
- Yangzhou University
- 225002 Yangzhou
- People's Republic of China
| | - Yu Yuan
- School of Chemistry and Chemical Engineering
- Yangzhou University
- 225002 Yangzhou
- People's Republic of China
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18
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Kaur N, Jangid NK, Sharma V. Metal- and nonmetal-catalyzed synthesis of five-membered S,N-heterocycles. J Sulphur Chem 2017. [DOI: 10.1080/17415993.2017.1415338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali University, Banasthali, India
| | | | - Vivek Sharma
- Department of Chemistry, Banasthali University, Banasthali, India
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19
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Clemenceau A, Wang Q, Zhu J. Cooperative Pd/Cu Catalysis: Multicomponent Synthesis of Tetrasubstituted Imidazolones from Methyl α-Isocyanoacetates, Primary Amines, and Aryl(vinyl) Iodides. Org Lett 2017; 20:126-129. [DOI: 10.1021/acs.orglett.7b03479] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Antonin Clemenceau
- Laboratory of Synthesis and Natural Products,
Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015 Lausanne, Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products,
Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015 Lausanne, Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products,
Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015 Lausanne, Switzerland
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20
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Clemenceau A, Wang Q, Zhu J. Silver Nitrate-Catalyzed Isocyanide Insertion/Lactamization Sequence to Imidazolones and Quinazolin-4-ones: Development and Application in Natural Product Synthesis. Org Lett 2017; 19:4872-4875. [DOI: 10.1021/acs.orglett.7b02334] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Antonin Clemenceau
- Laboratory of Synthesis and
Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015 Lausanne, Switzerland
| | - Qian Wang
- Laboratory of Synthesis and
Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015 Lausanne, Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and
Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015 Lausanne, Switzerland
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21
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Mamboury M, Wang Q, Zhu J. α-Oxo-Ketenimines from Isocyanides and α-Haloketones: Synthesis and Divergent Reactivity. Chemistry 2017; 23:12744-12748. [PMID: 28755439 DOI: 10.1002/chem.201703458] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Indexed: 12/30/2022]
Abstract
The palladium-catalyzed reaction of α-haloketones with isocyanides afforded α-oxo-ketenimines through β-hydride elimination of the β-oxo-imidoyl palladium intermediates. Reaction of these relatively stable α-oxo-ketenimines with nucleophiles such as hydrazines, hydrazoic acid, amines, and Grignard reagent afforded pyrazoles, tetrazole, β-keto amidines, and enaminone, respectively, with high chemoselectivity. Whereas amines attack exclusively on the ketenimine functions, the formal [3+2] cycloaddition between N-monosubstituted hydrazines and α-oxo-ketenimines was initiated by nucleophilic addition to the carbonyl group.
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Affiliation(s)
- Mathias Mamboury
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
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22
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Wang X, Miao D, Li X, Hu R, Yang Z, Gu R, Han S. Elemental sulfur mediated cyclization via redox strategy: Synthesis of benzothiazoles from o -chloronitrobenzenes and benzyl chlorides. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.07.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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23
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Steinberg DF, Turk MC, Kalyani D. Nickel-Catalyzed C-H Arylation of Benzoxazoles and Oxazoles: Benchmarking the Influence of Electronic, Steric and Leaving Group Variations in Phenolic Electrophiles. Tetrahedron 2017; 73:2196-2209. [PMID: 29051675 PMCID: PMC5642964 DOI: 10.1016/j.tet.2017.02.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Deborah F. Steinberg
- Department of Chemistry, St. Olaf College, 1520 St. Olaf Avenue, Northfield, Minnesota 55057, USA
| | - Morgan C. Turk
- Department of Chemistry, St. Olaf College, 1520 St. Olaf Avenue, Northfield, Minnesota 55057, USA
| | - Dipannita Kalyani
- Department of Chemistry, St. Olaf College, 1520 St. Olaf Avenue, Northfield, Minnesota 55057, USA
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24
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Chang W, Sun Y, Huang Y. One-pot green synthesis of benzoxazole derivatives through molecular sieve-catalyzed oxidative cyclization reaction. HETEROATOM CHEMISTRY 2017. [DOI: 10.1002/hc.21360] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Weichieh Chang
- Department of Applied Chemistry; National University of Kaohsiung; Kaohsiung Taiwan
| | - Yukai Sun
- Department of Chemistry; National Tsing Hua University; Hsinchu Taiwan
| | - Yungtzung Huang
- Department of Applied Chemistry; National University of Kaohsiung; Kaohsiung Taiwan
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25
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Sahu PK. A green approach to the synthesis of a nano catalyst and the role of basicity, calcination, catalytic activity and aging in the green synthesis of 2-aryl bezimidazoles, benzothiazoles and benzoxazoles. RSC Adv 2017. [DOI: 10.1039/c6ra25293a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A green synthesis of hydrotalcite (a double layered catalyst) by a grinding method using Al/Mg molar ratios of 1.0–3.0 at room temperature is described.
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Affiliation(s)
- Pramod K. Sahu
- School of Studies in Chemistry
- Jiwaji University
- Gwalior-474011
- India
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26
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Balaguez RA, Betin ES, Barcellos T, Lenardão EJ, Alves D, Schumacher RF. Synthesis of 2-acyl-benzo[1,3-d]selenazoles via domino oxidative cyclization of methyl ketones with bis(2-aminophenyl) diselenide. NEW J CHEM 2017. [DOI: 10.1039/c6nj03103j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The synthesis of unprecedented 2-acyl-benzo[1,3-d]selenazoles is presented using bis(2-aminophenyl) diselenide and aryl methyl ketones under conventional heating and microwave irradiation.
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Affiliation(s)
- Renata A. Balaguez
- Laboratório de Síntese Orgânica Limpa – LASOL
- CCQFA
- Universidade Federal de Pelotas – UFPel
- Pelotas
- Brazil
| | - Eduardo S. Betin
- Laboratório de Síntese Orgânica Limpa – LASOL
- CCQFA
- Universidade Federal de Pelotas – UFPel
- Pelotas
- Brazil
| | - Thiago Barcellos
- Laboratory of Biotechnology of Natural and Synthetic Products
- Universidade de Caxias do Sul
- Caxias do Sul
- Brazil
| | - Eder J. Lenardão
- Laboratório de Síntese Orgânica Limpa – LASOL
- CCQFA
- Universidade Federal de Pelotas – UFPel
- Pelotas
- Brazil
| | - Diego Alves
- Laboratório de Síntese Orgânica Limpa – LASOL
- CCQFA
- Universidade Federal de Pelotas – UFPel
- Pelotas
- Brazil
| | - Ricardo F. Schumacher
- Laboratório de Síntese Orgânica Limpa – LASOL
- CCQFA
- Universidade Federal de Pelotas – UFPel
- Pelotas
- Brazil
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27
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Qiu G, Wang Q, Zhu J. Palladium-Catalyzed Three-Component Reaction of Propargyl Carbonates, Isocyanides, and Alcohols or Water: Switchable Synthesis of Pyrroles and Its Bicyclic Analogues. Org Lett 2016; 19:270-273. [DOI: 10.1021/acs.orglett.6b03592] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Guanyinsheng Qiu
- Laboratory of Synthesis and
Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015 Lausanne, Switzerland
| | - Qian Wang
- Laboratory of Synthesis and
Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015 Lausanne, Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and
Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015 Lausanne, Switzerland
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28
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Qiu G, Mamboury M, Wang Q, Zhu J. Ketenimines from Isocyanides and Allyl Carbonates: Palladium-Catalyzed Synthesis of β,γ-Unsaturated Amides and Tetrazoles. Angew Chem Int Ed Engl 2016; 55:15377-15381. [PMID: 27862731 DOI: 10.1002/anie.201609034] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Indexed: 01/10/2023]
Abstract
The reaction of allyl ethyl carbonates with isocyanides in the presence of a catalytic amount of Pd(OAc)2 provided ketenimines through β-hydride elimination of the allyl imidoylpalladium intermediates. The insertion of the isocyanide into the π-allyl Pd complex proceeded via an unusual η1 -allyl Pd species. The resulting ketenimines were hydrolyzed to β,γ-unsaturated carboxamides during purification by flash column chromatography on silica gel or converted in situ into 1,5-disubstituted tetrazoles by [3+2] cycloaddition with hydrazoic acid or trimethylsilyl azide.
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Affiliation(s)
- Guanyinsheng Qiu
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Mathias Mamboury
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
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29
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Qiu G, Mamboury M, Wang Q, Zhu J. Ketenimines from Isocyanides and Allyl Carbonates: Palladium-Catalyzed Synthesis of β,γ-Unsaturated Amides and Tetrazoles. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201609034] [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)
- Guanyinsheng Qiu
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Mathias Mamboury
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
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30
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Li Y, Cao J, Zhu Q, Zhang X, Shi G. The copper-catalyzed cross-coupling reactions of aryl diazonium salts and isocyanides. RUSS J GEN CHEM+ 2016. [DOI: 10.1134/s1070363216030257] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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31
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Dumonteil G, Hiebel MA, Scherrmann MC, Berteina-Raboin S. Iodine-catalyzed formation of substituted 2-aminobenzothiazole derivatives in PEG400. RSC Adv 2016. [DOI: 10.1039/c6ra15971k] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An iodine-catalyzed formation of substituted 2-aminobenzothiazole derivatives is herein described using hydrogen peroxide as an oxidant in PEG400.
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Affiliation(s)
- G. Dumonteil
- Institut de Chimie Organique et Analytique
- Université d'Orléans
- UMR CNRS 7311
- 45067 Orléans Cedex
- France
| | - M.-A. Hiebel
- Institut de Chimie Organique et Analytique
- Université d'Orléans
- UMR CNRS 7311
- 45067 Orléans Cedex
- France
| | | | - S. Berteina-Raboin
- Institut de Chimie Organique et Analytique
- Université d'Orléans
- UMR CNRS 7311
- 45067 Orléans Cedex
- France
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32
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Khalili D, Banazadeh AR. Graphene Oxide as a Heterogeneous Reagent Promoted Synthesis of 2-Substituted 1,3-Benzazoles in Water. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2015. [DOI: 10.1246/bcsj.20150232] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Dariush Khalili
- Department of Chemistry, College of Sciences, Shiraz University
| | - Ali Reza Banazadeh
- Department of Chemistry and Petrochemical Engineering, Standard Research Institute (SRI)
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33
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Kaur N. Palladium-Catalyzed Approach to the Synthesis ofS-heterocycles. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 2015. [DOI: 10.1080/01614940.2015.1082824] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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34
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Song XR, Qiu YF, Song B, Hao XH, Han YP, Gao P, Liu XY, Liang YM. BF3·Et2O-Promoted Cleavage of the Csp–Csp2 Bond of 2-Propynolphenols/Anilines: Route to C2-Alkenylated Benzoxazoles and Benzimidazoles. J Org Chem 2015; 80:2263-71. [DOI: 10.1021/jo502761x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Xian-Rong Song
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Yi-Feng Qiu
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Bo Song
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xin-Hua Hao
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Ya-Ping Han
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Pin Gao
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xue-Yuan Liu
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Yong-Min Liang
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
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35
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Li J, He Y, Luo S, Lei J, Wang J, Xie Z, Zhu Q. Palladium-catalyzed intramolecular C(sp(2))-H imidoylation for the synthesis of six-membered N-heterocycles. J Org Chem 2015; 80:2223-30. [PMID: 25611368 DOI: 10.1021/jo502731n] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A new strategy for the construction of phenanthridine and isoquinoline scaffolds, starting from arenes containing a pending isocyanide moiety under palladium catalysis, has been developed. This process involves sequential intermolecular isocyanide insertion to an aryl palladium(II) intermediate and intramolecular aromatic C-H activation as key steps. Alkyl palladium(II) intermediate lacking β-hydrogen is also applicable to this reaction, generating unique bisheterocyclic scaffolds with three C-C bonds being formed consecutively.
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Affiliation(s)
- Jing Li
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences , 190 Kaiyuan Avenue, Guangzhou 510530, China
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36
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Zhu N, Du G, Han L, Hong H, Suo Q. Metal-Free Synthesis of Benzothiazoles from Disulfides of 2-Aminobenzenethiol and Carboxylic Acid via PCl3-Promoted Tandem Reaction. HETEROCYCLES 2015. [DOI: 10.3987/com-15-13256] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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37
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Prasad B, Nallapati SB, Kolli SK, Sharma AK, Yellanki S, Medisetti R, Kulkarni P, Sripelly S, Mukkanti K, Pal M. Pd-catalyzed isocyanide insertion/nucleophilic attack by indole C-3/desulfonylation in the same pot: a direct access to indoloquinolines of pharmacological interest. RSC Adv 2015. [DOI: 10.1039/c5ra13535d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A Pd-catalyzed new cascade reaction furnished indoloquinolin based small molecules as potential cytotoxic agents.
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Affiliation(s)
- Bagineni Prasad
- Dr Reddy's Institute of Life Sciences
- University of Hyderabad Campus
- Hyderabad 500 046
- India
| | - Suresh Babu Nallapati
- Dr Reddy's Institute of Life Sciences
- University of Hyderabad Campus
- Hyderabad 500 046
- India
- Institute of Science and Technology
| | - Sunder Kumar Kolli
- Dr Reddy's Institute of Life Sciences
- University of Hyderabad Campus
- Hyderabad 500 046
- India
| | | | - Swapna Yellanki
- Dr Reddy's Institute of Life Sciences
- University of Hyderabad Campus
- Hyderabad 500 046
- India
- Zephase Therapeutics (an incubated company at the DRILS)
| | - Raghavender Medisetti
- Dr Reddy's Institute of Life Sciences
- University of Hyderabad Campus
- Hyderabad 500 046
- India
- Zephase Therapeutics (an incubated company at the DRILS)
| | - Pushkar Kulkarni
- Dr Reddy's Institute of Life Sciences
- University of Hyderabad Campus
- Hyderabad 500 046
- India
- Zephase Therapeutics (an incubated company at the DRILS)
| | - S. Sripelly
- Dr Reddy's Institute of Life Sciences
- University of Hyderabad Campus
- Hyderabad 500 046
- India
| | - K. Mukkanti
- Institute of Science and Technology
- JNT University Hyderabad
- Hyderabad-500085
- India
| | - Manojit Pal
- Dr Reddy's Institute of Life Sciences
- University of Hyderabad Campus
- Hyderabad 500 046
- India
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38
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Rezazadeh S, Akhlaghinia B, Razavi N. Trichloroisocyanuric Acid/Triphenylphosphine-Mediated Synthesis of Benzimidazoles, Benzoxazoles, and Benzothiazoles. Aust J Chem 2015. [DOI: 10.1071/ch14037] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A new and efficient method for preparation of benzimidazoles, benzoxazoles, and benzothiazoles from reactions of different carboxylic acids with o-phenylenediamine, o-aminophenol, and o-aminothiophenol in the presence of triphenylphosphine/trichloroisocyanuric acid system is presented. The desired products have been characterised on the basis of spectral (infrared, NMR, mass spectrometry) data, and the mechanism of their formation is proposed. The remarkable advantages are the inexpensive and readily available reagent, simple procedure, mild conditions, and good-to-excellent yields.
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39
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Sharma S, Jain A. Ligand-free palladium assisted insertion of isocyanides to urea derivatives for cascade synthesis of phenylamino-substituted quinazolinones. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.09.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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40
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Mampuys P, Zhu Y, Vlaar T, Ruijter E, Orru RVA, Maes BUW. Sustainable Three-Component Synthesis of Isothioureas from Isocyanides, Thiosulfonates, and Amines. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406717] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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41
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Mampuys P, Zhu Y, Vlaar T, Ruijter E, Orru RVA, Maes BUW. Sustainable Three-Component Synthesis of Isothioureas from Isocyanides, Thiosulfonates, and Amines. Angew Chem Int Ed Engl 2014; 53:12849-54. [DOI: 10.1002/anie.201406717] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Indexed: 11/09/2022]
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42
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Chakrabarty S, Choudhary S, Doshi A, Liu FQ, Mohan R, Ravindra MP, Shah D, Yang X, Fleming FF. Catalytic Isonitrile Insertions and Condensations Initiated by RNC-X Complexation. Adv Synth Catal 2014; 356:2135-2196. [PMID: 25484847 PMCID: PMC4251577 DOI: 10.1002/adsc.201400017] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Isonitriles are delicately poised chemical entities capable of being coaxed to react as nucleophiles or electrophiles. Directing this tunable reactivity with metal and non-metal catalysts provides rapid access to a large array of complex nitrogenous structures ideally functionalized for medicinal applications. Isonitrile insertion into transition metal complexes has featured in numerous synthetic and mechanistic studies, leading to rapid deployment of isonitriles in numerous catalytic processes, including multicomponent reactions (MCR). Covering the literature from 1990-2014, the present review collates reaction types to highlight reactivity trends and allow catalyst comparison.
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Affiliation(s)
- Suravi Chakrabarty
- Mylan School of Pharmacy, Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA 15282-1530, USA
| | - Shruti Choudhary
- Mylan School of Pharmacy, Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA 15282-1530, USA
| | - Arpit Doshi
- Mylan School of Pharmacy, Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA 15282-1530, USA
| | - Fa-Qiang Liu
- Mylan School of Pharmacy, Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA 15282-1530, USA
| | - Rishabh Mohan
- Mylan School of Pharmacy, Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA 15282-1530, USA
| | - Manasa P. Ravindra
- Mylan School of Pharmacy, Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA 15282-1530, USA
| | - Dhruv Shah
- Mylan School of Pharmacy, Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA 15282-1530, USA
| | - Xun Yang
- Department of Chemistry, Duquesne University, Pittsburgh, PA 15282-1530, USA
| | - Fraser F. Fleming
- Department of Chemistry, Duquesne University, Pittsburgh, PA 15282-1530, USA
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43
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Jiang X, Wang JM, Zhang Y, Chen Z, Zhu YM, Ji SJ. Palladium-catalyzed formylation of aryl halides with tert-butyl isocyanide. Org Lett 2014; 16:3492-5. [PMID: 24956352 DOI: 10.1021/ol5014262] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A novel palladium-catalyzed formylation of aryl halides with isocyanide in the presence of Et3SiH has been demonstrated, which provides a strategy toward important aldehydes with moderate to excellent yield. The advantage of this reaction includes milder conditions, convenient operation, lower toxicity, and wide functional group tolerance.
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Affiliation(s)
- Xiao Jiang
- College of Pharmaceutical Sciences, Soochow University , Suzhou, 215123, China
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44
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Cheng Y, Peng Q, Fan W, Li P. Room-Temperature Ligand-Free Pd/C-Catalyzed C–S Bond Formation: Synthesis of 2-Substituted Benzothiazoles. J Org Chem 2014; 79:5812-9. [DOI: 10.1021/jo5002752] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Yannan Cheng
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering,
and Materials Science, Soochow University, 199 RenAi Road, Suzhou, Jiangsu 215123, China
| | - Qian Peng
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering,
and Materials Science, Soochow University, 199 RenAi Road, Suzhou, Jiangsu 215123, China
| | - Weigang Fan
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering,
and Materials Science, Soochow University, 199 RenAi Road, Suzhou, Jiangsu 215123, China
| | - Pixu Li
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering,
and Materials Science, Soochow University, 199 RenAi Road, Suzhou, Jiangsu 215123, China
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45
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Jiang X, Tang T, Wang JM, Chen Z, Zhu YM, Ji SJ. Palladium-Catalyzed One-Pot Synthesis of Quinazolinones via tert-Butyl Isocyanide Insertion. J Org Chem 2014; 79:5082-7. [DOI: 10.1021/jo500636y] [Citation(s) in RCA: 113] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Xiao Jiang
- College
of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Ting Tang
- College
of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Jin-Mei Wang
- College
of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Zhong Chen
- College
of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Yong-Ming Zhu
- College
of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Shun-Jun Ji
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
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46
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Vlaar T, Bensch L, Kraakman J, Vande Velde CML, Maes BUW, Orru RVA, Ruijter E. Synthesis of Diverse Azolo[c]quinazolines by Palladium(II)- Catalyzed Aerobic Oxidative Insertion of Isocyanides. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201301129] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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47
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Zhu YM, Shen JK, Wang JM, Jiang X, Tang T. Nickel-Catalyzed Ligand-Free Systhesis of Benzoxazoles and Oxazolines via Isocyanide Insertion. HETEROCYCLES 2014. [DOI: 10.3987/com-14-12996] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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48
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Pan L, Yu L, Wu Z, Li Z, Xiang H, Zhou X. Quaternary ammonium salt as alkylation agent in three-component reactions for the synthesis of benzothiazoles in water. RSC Adv 2014. [DOI: 10.1039/c4ra04145c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Substituted benzothiazoles are synthesized by metal-catalyst-free three-component reactions of o-iodoaniline, quaternary ammonium salt, and sulfur powder in water with moderate-to-excellent yields up to 95%.
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Affiliation(s)
- Lei Pan
- Institute of Homogeneous Catalysis
- College of Chemistry
- Sichuan University
- Chengdu 610064, P. R. China
| | - Lintao Yu
- Institute of Homogeneous Catalysis
- College of Chemistry
- Sichuan University
- Chengdu 610064, P. R. China
- College of Chemical and Pharmaceutical Engineering
| | - Zhiqing Wu
- Institute of Homogeneous Catalysis
- College of Chemistry
- Sichuan University
- Chengdu 610064, P. R. China
| | - Zhengkai Li
- Institute of Homogeneous Catalysis
- College of Chemistry
- Sichuan University
- Chengdu 610064, P. R. China
| | - Haifeng Xiang
- Institute of Homogeneous Catalysis
- College of Chemistry
- Sichuan University
- Chengdu 610064, P. R. China
| | - Xiangge Zhou
- Institute of Homogeneous Catalysis
- College of Chemistry
- Sichuan University
- Chengdu 610064, P. R. China
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49
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Metal Catalyzed Cross-Coupling Reactions in the Decoration of Pyrimidine, Pyridazine, and Pyrazine. TOPICS IN HETEROCYCLIC CHEMISTRY 2014. [DOI: 10.1007/7081_2014_138] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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50
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Shelkar R, Sarode S, Nagarkar J. Nano ceria catalyzed synthesis of substituted benzimidazole, benzothiazole, and benzoxazole in aqueous media. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.09.092] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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