The leaving group dependence in the rates of solvolysis of 1,2-diphenylethyl system
作者:D. Santhosh Kumar、K. P. Jayakumar、S. Balachandran
DOI:10.1002/poc.1662
日期:2010.8
carbocation. 1,2‐Diphenylethyl chloride thus behaves similar to 1‐phenylethyl chloride in its solvolysis pattern. The solvolytic rate studies of chloride and methanesulphonate of 1,2‐diphenylethyl alcohol in various aqueous organic solvents show that the dispersion observed in the Winstein–Grunwald plot is not due to a change in leaving group but due to the difference in solvation requirements of aromatic
1,2-二苯乙基氯通过S N 1机理在水性有机溶剂中经历溶剂分解。1,2-二苯乙基氯的α-苯基与发展中的碳阳离子中心结合。该β另一方面,由于非经典碳正离子形成中共振的位阻,‐苯基无法通过邻近基团的参与扩展其结合。因此,1,2-二苯乙基氯的溶剂分解行为与1-苯乙基氯相似。在各种水性有机溶剂中1,2-二苯乙醇的氯化物和甲磺酸盐的溶剂化速率研究表明,在温斯坦-格伦瓦尔德图中观察到的分散不是由于离去基团的变化,而是由于芳族化合物的溶剂化要求的不同和脂族基团。版权所有©2010 John Wiley&Sons,Ltd.