Chemistry of Ylids. XIII. Electronic Effects in Phosphonium Ylids1a

AW Johnson, SY Lee, RA Swor…

文献索引：Johnson,A.W. et al. Journal of the American Chemical Society, 1966 , vol. 88, # 9 p. 1953 - 1958

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被引用次数: 18

摘要

Abstract: A series of substituted 9-fluorenyltriphenylphosphonium bromides (11) and another of 9-fluorenyltriphenylphosphonium bromides (IV) substituted on the phenyl group have been prepared and converted to the corresponding fluorenylidenephosphoranes. The acidities of the two series of phosphonium salts followed a linear correlation with Taft's UO and Hammett's u constants with p values of f5. 0 and+ 4.8, respectively. The basicity of the ...