Diastereospecific Nazarov Cyclization of Fully Substituted Dienones: Generation of Vicinal All-Carbon-Atom Quaternary Stereocenters
作者:Anais Jolit、Saleta Vazquez-Rodriguez、Glenn P. A. Yap、Marcus A. Tius
DOI:10.1002/anie.201305218
日期:2013.10.11
vacancy: Fully substituted dienones that are highly polarized by a vinylogous carbonate group were found to undergo a remarkably rapid and diastereospecific Nazarovcyclization that led to cyclopentenones with vicinal all‐carbon‐atom quaternary centers (see example; SEM=2‐(trimethylsilyl)ethoxymethyl, Tf=trifluoromethanesulfonyl).