Reaction of dihydrolipoic acid with juglone and related naphthoquinones: unmasking of a spirocyclic 1,3-dithiane intermediate en route to naphtho[1,4]dithiepines
作者:Giorgia Greco、Lucia Panzella、Alessandro Pezzella、Alessandra Napolitano、Marco d'Ischia
DOI:10.1016/j.tet.2010.03.103
日期:2010.5
The reaction of dihydrolipoic acid (DHLA) with 5-hydroxy-1,4-naphthoquinone (juglone) gives rise to the novel naphtho[1,4]dithiepine derivatives through ring expansion of an unstable spirocyclic 1,3-dithiane intermediate, which was isolated and completely characterized. Reported herein is also the characterization of novel reaction products of DHLA with other naphthoquinones and the extension of the
二氢硫辛酸(DHLA)与5-羟基-1,4-萘醌(朱古力)的反应通过不稳定的螺环1,3-二硫杂环戊烷中间体的扩环反应生成了新型的萘并[1,4]二噻吩衍生物。孤立且完全具有特征。本文还报道了DHLA与其他萘醌的新型反应产物的表征,并将研究范围扩展至通过与代表性的2-取代萘醌反应形成的螺环加合物。