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Tetrahedron Letters

Solvolysis of 1-aryl-1-(trifloromethyl) ethyl tosylates. Evidence for an extremely high electron demand carbenium ion intermediate due to the presence of α- …

KT Liu, CF Sheu

文献索引:Liu, Kwang-Ting; Sheu, Ching-Fen Tetrahedron Letters, 1980 , vol. 21, p. 4091 - 4094

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被引用次数: 16

摘要

Abstract The rate-retarding effect of?-trifluoromethyl group observed in the solvolysis of 1- aryl-1-(trifluoromethyl) ethyl tosylates is so profound that a very large negative α+ value,− 8.82, is resulted and the 1-phenyl derivative becomes even less reactive than benzyl