作者:Nathan L. Fifer、Jonathan M. White
DOI:10.1039/b503124a
日期:——
The low temperature crystal structures of ester and ether derivatives of varying electron demand, derived from cyclopropylmethanol 8 and dicyclopropylmethanol 9, have been determined. These structures show a very strong response of the CâOR bond distance to the electron demand of the OR substituent, demonstrating the strong Ï-donor ability of the strained CâC bonds in the cyclopropane ring.
已确定来自环丙甲醇8和二环丙甲醇9的酯和醚衍生物在低温下的晶体结构,这些衍生物的电子需求各不相同。这些结构表明C-OR键的距离对OR取代基的电子需求有极强的响应,显示了环丙烷环中受张力的C-C键的强σ-供体能力。