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Bagad PK, Darole RS, Krishna GR, Senthilkumar B. Highly Selective C-N and C-S Dual Functionalization of 1,3-Dicarbonyl Derivatives Using TBHP as an Oxidant. J Org Chem 2024; 89:9371-9380. [PMID: 38913603 DOI: 10.1021/acs.joc.4c00612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
A direct electrosynthesis/photocatalyst-free, atom-economical, and efficient method for the selective synthesis of (E)-3-amino-2-thiocyanato-α,β-unsaturated carbonyl compounds is described through a given protocol. The present approach features the use of inexpensive ammonium thiocyanate to achieve dual functionalization of 1,3-dicarbonyl compounds using TBHP as an oxidant, providing a rapid and practical route to the selective formation of both C-N and C-S bonds via a radical process. This method offers a broad substrate scope with excellent yield and allows for further exploration of the products to construct heterocyclic compounds and other functionalities.
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Affiliation(s)
- Pooja K Bagad
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Ratanamala S Darole
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - G Rama Krishna
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Beeran Senthilkumar
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
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2
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Chen S, Li Z, Hu K, Feng W, Mao G, Xiao F, Deng GJ. Three-component selective synthesis of phenothiazines and bis-phenothiazines under metal-free conditions. Org Biomol Chem 2023; 21:1920-1926. [PMID: 36752306 DOI: 10.1039/d3ob00055a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
An iodine-containing reagent promoted three-component method for the selective synthesis of phenothiazines and bis-phenothiazines has been developed. The present protocol starts from simple and easily available cyclohexanones, elemental sulfur, and inorganic ammonium salts, selectively producing phenothiazines and bis-phenothiazines in satisfactory yields under aerobic conditions. This method has the advantages of simple and readily available starting materials and metal-free conditions, affording a facile and practical approach for the preparation of phenothiazines and bis-phenothiazines.
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Affiliation(s)
- Shanping Chen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China.
| | - Zhuoqin Li
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China.
| | - Kai Hu
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China.
| | - Wei Feng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China.
| | - Guojiang Mao
- School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang, 453007, P. R. China
| | - Fuhong Xiao
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China.
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China.
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3
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Dodds AC, Puddu S, Sutherland A. Thioarylation of anilines using dual catalysis: two-step synthesis of phenothiazines. Org Biomol Chem 2022; 20:5602-5614. [PMID: 35796590 DOI: 10.1039/d2ob01082h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A two-step synthesis of phenothiazines has been developed using a dual-catalytic ortho-thioarylation reaction of anilines as the key step. Activation of N-(2-bromophenylthio)succinimide was achieved using the super Lewis acid, iron(III) triflimide and the Lewis base, diphenyl selenide, resulting in an accelerated and efficient ortho-thioarylation reaction of various protected aniline derivatives and less reactive, unprotected analogues. The thioarylated adducts were then cyclised to the desired phenothiazines using either an Ullmann-Goldberg or Buchwald-Hartwig coupling reaction. The dual catalytic thioarylation and copper(I)-catalysed cyclisation approach was used for the four-step synthesis of methopromazine, a neuroleptic agent with antipsychotic activity.
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Affiliation(s)
- Amy C Dodds
- School of Chemistry, The Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, UK.
| | - Sabrina Puddu
- School of Chemistry, The Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, UK.
| | - Andrew Sutherland
- School of Chemistry, The Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, UK.
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Virendra SA, Wahan SK, Sahu C, Chawla PA. Green synthesis of various saturated S-heterocyclic scaffolds: an update. PHYSICAL SCIENCES REVIEWS 2022. [DOI: 10.1515/psr-2021-0222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Development of reliable and eco-friendly novel schemes for the synthesis of organic compounds is an important step in the field of organic and medicinal chemistry. Green chemistry-based strategies involving use of catalysts, green solvents, atom economic reactions etc. play a key role because of their exceptional ability to minimize the toxicity or hazards of the side products and processes. With the use of these green techniques, a number of researchers were able to synthesis a wide range of heterocyclic compounds. This chapter highlights the potential and diverse biological activities of saturated sulphur containing heterocyclic compounds including thiirane, thiane, thiolane and many more. The aim of this chapter is to provide fresh perspective on the various techniques employed for the formation of C–S bond by summarizing all green synthesis from 2016 to 2021.
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Affiliation(s)
- Sharma Arvind Virendra
- Department of Pharmaceutical Chemistry , ISF College of Pharmacy , Moga , Punjab 142001 , India
| | - Simranpreet K. Wahan
- Department of Pharmaceutical Chemistry , ISF College of Pharmacy , Moga , Punjab 142001 , India
| | - Chandrakant Sahu
- Department of Pharmaceutical Chemistry , ISF College of Pharmacy , Moga , Punjab 142001 , India
| | - Pooja A. Chawla
- Department of Pharmaceutical Chemistry , ISF College of Pharmacy , Moga , Punjab 142001 , India
- Department of Pharmaceutical Analysis , ISF College of Pharmacy , Moga 142001 , India
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Taha I, Keshk EM, Khalil AGM, Fekri A. Benzocaine as a precursor of promising derivatives: synthesis, reactions, and biological activity. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01808-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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6
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Rui X, Wang C, Si D, Hui X, Li K, Wen H, Li W, Liu J. One-Pot Tandem Access to Phenothiazine Derivatives from Acetanilide and 2-Bromothiophenol via Rhodium-Catalyzed C-H Thiolation and Copper-Catalyzed C-N Amination. J Org Chem 2021; 86:6622-6632. [PMID: 33881319 DOI: 10.1021/acs.joc.1c00403] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A one-pot and step economic reaction involving Rh(III)-catalyzed C-H thiolation and relay Cu(II)-catalyzed C-N amination of acetanilide and 2-bromothiophenol is reported here, with several valuable phenothiazine products obtained. This synthesis protocol proceeds from easily starting materials, demonstrating high atom economy, broad substrate scope, and good yield. Furthermore, the directing group can be easily eliminated, and chlorpromazine is provided in a large scale; thus this synthesis protocol could be utilized to construct phenothiazine scaffolds.
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Affiliation(s)
- Xiyan Rui
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Chao Wang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Dongjuan Si
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Xuechao Hui
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Keting Li
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Hongmei Wen
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Wei Li
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Jian Liu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
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Anchan K, Puttappa NH, Poongavanam B, Sarkar SK. Microwave assisted rapid synthesis of phenoxazines and benzopyridoxazines. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1849723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Kavitha Anchan
- Research and Development Centre, Bharathiar University, Coimbatore, India
- Discovery Chemistry, Syngene International Limited, Bangalore, India
| | - Nagaswarupa H. Puttappa
- Research and Development Centre, Bharathiar University, Coimbatore, India
- Department of studies in chemistry, Davangere University, Davangere, India
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Pluta K, Jeleń M, Morak-Młodawska B. The Smiles rearrangement in the syntheses of azaphenothiazines. Part I. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127501] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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9
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Zhang J, Liu T, Chen M, Liu F, Liu X, Zhang J, Lin J, Jin Y. Synthesis and Biological Evaluation of Indole-2-carbohydrazide Derivatives as Anticancer Agents with Anti-angiogenic and Antiproliferative Activities. ChemMedChem 2018; 13:1181-1192. [DOI: 10.1002/cmdc.201800033] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 04/02/2018] [Indexed: 12/18/2022]
Affiliation(s)
- Jianqiang Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resources; Ministry of Education and Yunnan Province; School of Chemical Science and Technology; Yunnan University; No. 2 Cuihu North Road Kunming 650091 P.R. China
- Key Laboratory of Subtropical Medicinal Edible Resources Development and Utilization in Yunnan Province; College of Biology and Chemistry; Puer University; No. 6 Xueyuan's Road Puer 665000 P.R. China
| | - Tongyang Liu
- Laboratory of Molecular Genetics of Aging and Tumors; Medical School; Kunming University of Science and Technology; No. 68 Wenchang Road, 121 Avenue Kunming 650500 P.R. China
| | - Mei Chen
- Key Laboratory of Subtropical Medicinal Edible Resources Development and Utilization in Yunnan Province; College of Biology and Chemistry; Puer University; No. 6 Xueyuan's Road Puer 665000 P.R. China
| | - Feifei Liu
- Laboratory of Molecular Genetics of Aging and Tumors; Medical School; Kunming University of Science and Technology; No. 68 Wenchang Road, 121 Avenue Kunming 650500 P.R. China
| | - Xingyuan Liu
- Key Laboratory of Subtropical Medicinal Edible Resources Development and Utilization in Yunnan Province; College of Biology and Chemistry; Puer University; No. 6 Xueyuan's Road Puer 665000 P.R. China
| | - Jihong Zhang
- Laboratory of Molecular Genetics of Aging and Tumors; Medical School; Kunming University of Science and Technology; No. 68 Wenchang Road, 121 Avenue Kunming 650500 P.R. China
| | - Jun Lin
- Key Laboratory of Medicinal Chemistry for Natural Resources; Ministry of Education and Yunnan Province; School of Chemical Science and Technology; Yunnan University; No. 2 Cuihu North Road Kunming 650091 P.R. China
| | - Yi Jin
- Key Laboratory of Medicinal Chemistry for Natural Resources; Ministry of Education and Yunnan Province; School of Chemical Science and Technology; Yunnan University; No. 2 Cuihu North Road Kunming 650091 P.R. China
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10
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Zhou Y, Zeng Q, Zhang L. Transition-metal-free synthesis of phenothiazines from S-2-acetamidophenyl ethanethioate and ortho-dihaloarenes. SYNTHETIC COMMUN 2017. [DOI: 10.1080/00397911.2017.1281959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Yue Zhou
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Materials, Chemistry and Chemical Engineering, Chengdu University of Technology, Chengdu, P. R. China
| | - Qingle Zeng
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Materials, Chemistry and Chemical Engineering, Chengdu University of Technology, Chengdu, P. R. China
| | - Li Zhang
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Materials, Chemistry and Chemical Engineering, Chengdu University of Technology, Chengdu, P. R. China
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