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1
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Recent advances in the catalytic N-methylation and N-trideuteromethylation reactions using methanol and deuterated methanol. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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2
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Cui Y, Zhao Y, Shen J, Zhang G, Ding C. The stable "F-SO 2 +" donor provides a mild and efficient approach to nitriles and amides. RSC Adv 2022; 12:33064-33068. [PMID: 36425170 PMCID: PMC9672908 DOI: 10.1039/d2ra05890a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Accepted: 10/20/2022] [Indexed: 10/17/2023] Open
Abstract
In this update, we developed a mild, efficient and practical method using fluorosulfuryl imidazolium salt A as an environment friendly promoter for conversion of oximes to nitriles or amides via β-elimination or Beckmann rearrangement in almost quantitative yield in 10 minutes. The target products were generated in gram-scale and could be collected through crystallization without silica gel column purification in excellent yield.
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Affiliation(s)
- Yin Cui
- College of Chemical Engineering, Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Yiyong Zhao
- Zhejiang Ecological Environment Low Carbon Development Center Hangzhou 310014 P. R. China
| | - Junjie Shen
- Zhejiang Kefeng New Material Co. LTD Huzhou 313200 P. R. China
| | - Guofu Zhang
- College of Chemical Engineering, Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Chengrong Ding
- College of Chemical Engineering, Zhejiang University of Technology Hangzhou 310014 P. R. China
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3
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Yingxian L, Wei C, Linchun Z, Ji-Quan Z, Yonglong Z, Chun L, Bing G, Lei T, Yuan-Yong Y. Catalytic N-methyl amidation of carboxylic acids under cooperative conditions. RSC Adv 2022; 12:20550-20554. [PMID: 35919177 PMCID: PMC9284536 DOI: 10.1039/d2ra03255d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 07/09/2022] [Indexed: 11/21/2022] Open
Abstract
The generation of N-methyl amides using simple acids with high atom economy is rare owning to the volatile nature of methyl amine. Herein, an atom economic protocol was disclosed to prepare this valuable motif under DABCO/Fe3O4 cooperative catalysis.
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Affiliation(s)
- Li Yingxian
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 550014 Guiyang, P. R. China
| | - Chen Wei
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 550014 Guiyang, P. R. China
| | - Zhao Linchun
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 550014 Guiyang, P. R. China
| | - Zhang Ji-Quan
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 550014 Guiyang, P. R. China
| | - Zhao Yonglong
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 550014 Guiyang, P. R. China
| | - Li Chun
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 550014 Guiyang, P. R. China
| | - Guo Bing
- Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases, Guizhou Medical University, 550004 Guiyang, P. R. China
| | - Tang Lei
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 550014 Guiyang, P. R. China
| | - Yang Yuan-Yong
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 550014 Guiyang, P. R. China
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Paul B, Maji M, Panja D, Kundu S. Cobalt Catalyzed N‐Methylation of Amides using Methanol. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100678] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Bhaskar Paul
- Department of Chemistry Indian Institute of Technology Kanpur Kanpur 208016 Uttar Pradesh (U.P. India
- Department of Chemistry University of California at Riverside Riverside California 92521 United States
| | - Milan Maji
- Department of Chemistry Indian Institute of Technology Kanpur Kanpur 208016 Uttar Pradesh (U.P. India
| | - Dibyajyoti Panja
- Department of Chemistry Indian Institute of Technology Kanpur Kanpur 208016 Uttar Pradesh (U.P. India
| | - Sabuj Kundu
- Department of Chemistry Indian Institute of Technology Kanpur Kanpur 208016 Uttar Pradesh (U.P. India
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Song X, Liu X, Yu W, Jin Y. Amide-Assisted Rearrangement of Hydroxyarylformimidoyl Chloride to Diarylurea. Molecules 2021; 26:6437. [PMID: 34770846 PMCID: PMC8587945 DOI: 10.3390/molecules26216437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/20/2021] [Accepted: 10/22/2021] [Indexed: 11/26/2022] Open
Abstract
A novel amide-assisted rearrangement reaction of hydroxybenzimidoyl chloride has been established for the efficient synthesis of 1,3-diphenylurea derivatives. A variety of electronically and sterically different 1,3-diphenylurea derivatives can be obtained in good to excellent yields, and a proposed reaction mechanism is also presented.
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Affiliation(s)
- Xizhong Song
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research & Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China; (X.S.); (X.L.)
- Jianxi Nafutang Pharmaceutical Co., Ltd., Zhangshu 331200, China
| | - Xiaoyu Liu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research & Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China; (X.S.); (X.L.)
| | - Wei Yu
- 920th Hospital of Joint Logistics Support Force, PLA, Kunming 650118, China
| | - Yi Jin
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research & Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China; (X.S.); (X.L.)
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Kabadwal LM, Bera S, Banerjee D. Recent advances in sustainable organic transformations using methanol: expanding the scope of hydrogen-borrowing catalysis. Org Chem Front 2021. [DOI: 10.1039/d1qo01412a] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Recent progress relating to sustainable approaches using methanol as a C1-alkylating agent for C–Me and N–Me bond formation is discussed.
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Affiliation(s)
- Lalit Mohan Kabadwal
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India
| | - Sourajit Bera
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India
| | - Debasis Banerjee
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India
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Paul B, Maji M, Chakrabarti K, Kundu S. Tandem transformations and multicomponent reactions utilizing alcohols following dehydrogenation strategy. Org Biomol Chem 2020; 18:2193-2214. [DOI: 10.1039/c9ob02760b] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
In this review, the progress of tandem transformation of nitro, nitrile and azide functionalities is summarised to develop new C–C and C–N bonds as well as multi-component reactions using alcohols.
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Affiliation(s)
- Bhaskar Paul
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Milan Maji
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Kaushik Chakrabarti
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Sabuj Kundu
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
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Maji M, Kundu S. Cooperative ruthenium complex catalyzed multicomponent synthesis of pyrimidines. Dalton Trans 2019; 48:17479-17487. [DOI: 10.1039/c9dt04040d] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The ruthenium-catalyzed multicomponent synthesis of pyrimidines from amidines and alcohols is reported for the first time.
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Affiliation(s)
- Milan Maji
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Sabuj Kundu
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
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