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Huang Y, Choy PY, Wang J, Tse MK, Sun RWY, Chan ASC, Kwong FY. Palladium-Catalyzed Monoarylation of Arylhydrazines with Aryl Tosylates. J Org Chem 2020; 85:14664-14673. [PMID: 32924493 DOI: 10.1021/acs.joc.0c01599] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A palladium-catalyzed C-N bond coupling reaction between arylhydrazines and aryl tosylates for facile synthesis of unsymmetrical N,N-diarylhydrazines has been developed. Employing the catalyst system of Pd(TFA)2 associated with newly developed phosphine ligand L1, the monoarylation of arylhydrazine proceeds smoothly to afford desired products in good-to-excellent yields (up to 95%) with good functional group compatibility. This method provides an alternative synthetic pathway for accessing structurally diversified N,N-diarylhydrazines from simple and easily accessible coupling components.
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Affiliation(s)
- Yange Huang
- Shenzhen Municipal Key Laboratory of Chemical Synthesis of Medicinal Organic Molecules, Shenzhen Research Institute, The Chinese University of Hong Kong, No. 10, Second Yuexing Road, Shenzhen 518507, China.,State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The Chinese University of Hong Kong, New Territories, Shatin, Hong Kong, China
| | - Pui Ying Choy
- Shenzhen Municipal Key Laboratory of Chemical Synthesis of Medicinal Organic Molecules, Shenzhen Research Institute, The Chinese University of Hong Kong, No. 10, Second Yuexing Road, Shenzhen 518507, China.,State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The Chinese University of Hong Kong, New Territories, Shatin, Hong Kong, China
| | - Junya Wang
- Shenzhen Municipal Key Laboratory of Chemical Synthesis of Medicinal Organic Molecules, Shenzhen Research Institute, The Chinese University of Hong Kong, No. 10, Second Yuexing Road, Shenzhen 518507, China
| | - Man-Kin Tse
- Guangzhou Lee & Man Technology Co. Ltd, Rm 401, Blk A, 8 Huanshi Avenue South, Nansha, Guangzhou, China
| | - Raymond Wai-Yin Sun
- Guangzhou Lee & Man Technology Co. Ltd, Rm 401, Blk A, 8 Huanshi Avenue South, Nansha, Guangzhou, China
| | - Albert Sun-Chi Chan
- Guangzhou Lee & Man Technology Co. Ltd, Rm 401, Blk A, 8 Huanshi Avenue South, Nansha, Guangzhou, China
| | - Fuk Yee Kwong
- Shenzhen Municipal Key Laboratory of Chemical Synthesis of Medicinal Organic Molecules, Shenzhen Research Institute, The Chinese University of Hong Kong, No. 10, Second Yuexing Road, Shenzhen 518507, China.,State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The Chinese University of Hong Kong, New Territories, Shatin, Hong Kong, China
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Poisson J, Butler IS, Bohle DS. π-Delocalization in the vicinal lone pairs of hydrazines: Electronic effects in derivatives of 1-(2-nitrophenyl)-1-phenylhydrazine. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.02.061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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