Regiodivergent Chlorine Atom-transfer Ring-opening Reaction of Trichloromethylcyclopropanes

Regiodivergent Chlorine Atom-transfer Ring-opening Reaction of Trichloromethylcyclopropanes
复制标题

三氯甲基环丙烷的区域分散氯原子转移开环反应

DOI:
10.1002/ejoc.201700567
复制
发表时间:
2017
期刊:
Eur. J. Org. Chem.
影响因子:
--
通讯作者:
Okiko Miyata and Masafumi Ueda
Okiko Miyata and Masafumi Ueda
中科院分区:
--
文献类型:
--
作者:
Nobuyoshi Doi;Norihiko Takeda;Okiko Miyata and Masafumi Ueda

文献摘要

相似文献

发展了一个涉及三氯甲基环丙烷开环的区域发散氯原子转移反应。三氯甲基环丙烷与ZnMe 2反应,通过氯离子介导的原子转移开环反应,得到了高立体选择性的β-氯-α-二氯乙烯基酯。相比之下,使用CuCl通过氯自由基介导的原子转移开环反应得到α-氯-β-二氯乙烯基酯。
A regiodivergent chlorine‐atom‐transfer reaction involving the ring‐opening of trichloromethylcyclopropanes was developed. Treatment of a trichloromethylcyclopropane with ZnMe2provided the β‐chloro‐α‐dichlorovinyl ester with high stereoselectivity through a chloride‐anion‐mediated atom‐transfer ring‐opening reaction. In contrast, the use of CuCl afforded the α‐chloro‐β‐dichlorovinyl ester by a chlorine‐radical‐mediated atom‐transfer ring‐opening reaction.