Solvolyses of monosubstituted benzhydryl bromides. Nucleophilic solvent intervention and dependence of solvation on the extent of charge delocalization in cationic transition states
作者:Kwang-Ting Liu、Chien-Pu Chin、Yen-Shyi Lin、Meng-Lin Tsao
DOI:10.1016/0040-4039(95)01430-p
日期:1995.9
Y(BnBr) or Y(Br). Correlation analyses against corresponding logk of α-tert-butyl-(2-naphthyl) methyl bromide provided evidence for the importance of different extent of solvation in delocalized transition state and for nucleophilic solvent intervention in the solvolysis of benzhydryl systems.
单取代的苯甲基溴化物的溶剂化使logk具有σ+常数,而不具有Y(BnBr)或Y(Br)的优异线性相关性。对α-叔丁基-(2-萘基)甲基溴的相应logk进行相关分析,提供了证据表明,在离域过渡态中不同程度的溶剂化非常重要,并且亲核溶剂的干预对苯甲基系统的溶剂化具有重要意义。