Substituent effects on the Bergman cyclization of (Z)‐1,5‐hexadiyne‐3‐enes: a systematic computational study

Substituent effects on the Bergman cyclization of (Z)‐1,5‐hexadiyne‐3‐enes: a systematic computational study
复制标题

取代基对 (Z)-1,5-己二炔-3-烯伯格曼环化的影响:系统计算研究

DOI:
10.1002/jcc.1114
复制
发表时间:
2001
影响因子:
3
通讯作者:
P. Schreiner
P. Schreiner
中科院分区:
化学3区
文献类型:
--
作者:
M. Prall;A. Wittkopp;A. Fokin;P. Schreiner

文献摘要

参考文献

被引文献

相似文献

几种取代基(BH2、BF2、AlH2、CH3、C6H5、CN、COCH3、CF3、SiH3、NH2、NH3+、NO2、PH2、OH、使用 6-31G* 基组在 Becke-Lee-Yang-Parr (BLYP) 密度泛函 (DFT) 水平上研究了 (Z)-1,5-己二炔-3-烯(烯二炔,3)Bergman 环化中的 OH2+、SH、F、Cl、Br)。一些取代基(NH3+、NO2、OH、OH2+、F、Cl、Br)能够降低能垒(二氟烯二炔 7rr 最低可达 16.9 kcal mol−1)和反应焓(环化预计对于 OH2+ 和 来说是放能的) F) 与在生理温度下产生取代的 1,4-脱氢苯的母体系统相比。 © 2001 John Wiley & Sons, Inc. J Comput Chem 22: 1605–1614, 2001
The effects of several substituents (BH2, BF2, AlH2, CH3, C6H5, CN, COCH3, CF3, SiH3, NH2, NH3+, NO2, PH2, OH, OH2+, SH, F, Cl, Br) on the Bergman cyclization of (Z)‐1,5‐hexadiyne‐3‐ene (enediyne, 3) were investigated at the Becke–Lee–Yang–Parr (BLYP) density functional (DFT) level employing a 6‐31G* basis set. Some of the substituents (NH3+, NO2, OH, OH2+, F, Cl, Br) are able to lower the barrier (up to a minimum of 16.9 kcal mol−1 for difluoro‐enediyne 7rr) and the reaction enthalpy (the cyclization is predicted to be exergonic for OH2+ and F) compared to the parent system giving rise to substituted 1,4‐dehydrobenzenes at physiological temperatures. © 2001 John Wiley & Sons, Inc. J Comput Chem 22: 1605–1614, 2001
DOI: 10.1021/ja0033032
发表时间: 2001-03-14
影响因子: 15
作者:
Jones, GB;Warner, PM
通讯作者: Warner, PM