When periphery matters: Enhanced reactivity of 8-oxa-1,4-dithiaspiro[4.5]decane-7,9-dione and 9-oxa-1,5-dithiaspiro[5.5]undecane-8,10-dione in the Castagnoli-Cushman reaction with imines
作者:Artem Rashevskii、Olga Bakulina、Mikhail S. Novikov、Dmitry Dar'in、Mikhail Krasavin
DOI:10.1016/j.tetlet.2020.152658
日期:2020.12
8-Oxa-1,4-dithiaspiro[4.5]decane-7,9-dione and 9-oxa-1,5-dithiaspiro[5.5]undecane-8,10-dione, cyclicanhydrides formed in situ from the respective dicarboxylicacids in the presence of acetic anhydride, possess an enhanced reactivity and display a broad substrate scope in the Castagnoli-Cushman reaction with imines.