A convenient oxidative demasking of 1,3-dithiolanes and dithianes to carbonyl compounds with TBHP
摘要:
Regeneration of carbonyl compounds from their 1,3-dithiolanes and dithianes was achieved using tert-butyl hydroperoxide (TBHP, aq. 70%) in high yields. Thus, an efficient, economic and experimentally simple protocol for dethioacetalization has been demonstrated. (C) 2002 Elsevier Science Ltd. All rights reserved.
Facile Conversion of Cyclopropanols into Linear Conjugate Enones
作者:Wei-Bo Han、Shao-Gang Li、Xiao-Wei Lu、Yikang Wu
DOI:10.1002/ejoc.201402175
日期:2014.6
A practical method for the conversion of 1,2-disubstituted cyclopropanols derived from Kulinkovich cyclopropanation into linearenones was developed. The approach features regioselective cleavage of the cyclopropane rings in EtOH at ambient temperature with inexpensive and readily available Co(acac)2 as the catalyst and air as the reagent. The crude intermediate peroxides were directly reduced with
A convergent approach to heterocycle synthesis via silver ion mediated .alpha.-ketoimidoyl halide-arene cyclizations. An application to the synthesis of the erythrinane skeleton