The α-Effect in Benzyl Transfers from Benzylphenylmethyl Sulfonium Salts to <i>N</i>-Methylbenzohydroxamate Anions
作者:K. R. Fountain、Darlene B. Tad-y、Timothy W. Paul、Mikhail V. Golynskiy
DOI:10.1021/jo981902+
日期:1999.9.1
occurrence of the alpha-effect in group transfers from phenyldialkyl sulfonium ions where one alkyl group is benzyl allows an assay of the effect of changing the nature of the C atom being transferred. The size of the alpha-effect responds to increasing electron demand, as methyl transfers do. Quantitative relationships between the size of the alpha-effect are established from both the nucleophilic side and
对从一个烷基为苄基的苯基二烷基sulf离子进行的基团转移中α效应的发生的研究,可以测定改变被转移的C原子的性质的影响。就像甲基转移一样,α效应的大小响应于电子需求的增加。从S(N)2过渡态的亲核侧和离去基团侧都建立了α效应的大小之间的定量关系。