期刊
ORGANIC LETTERS
卷 23, 期 6, 页码 2386-2391出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.1c00748
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资金
- Natural Science Foundation of Zhejiang Province (ZJNSF) [LY19B020005]
- Pandeng Plan Foundation of Hangzhou Normal University
- Leung (Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University)
The study demonstrates that the reaction of arylthianthrenium salts with diarylphosphines can undergo phosphination via the cleavage of either an endocyclic or exocyclic C-S bond, with significantly higher speed in the presence of a palladacycle catalyst.
Diverse C-P cross-couplings of arylthianthrenium salts with diarylphosphines producing various triarylphosphines via highly selective C-S bond cleavage are reported. In the absence of catalyst, the reaction of arylthianthrenium salts with diarylphosphines undergoes phosphinative ring opening exclusively via the cleavage of an endocyclic C-S bond of a thianthrene skeleton. The use of a palladacycle catalyst under otherwise the same conditions enables the phosphination via the cleavage of an exocyclic C-S bond with significantly higher speed.
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