The vinylogous aldol reaction of N-Sulfinyl metallodienamines
作者:Po-Cheng Yu、Vijay K. Chatare、Harsh Patel、Charles DeBrosse、Rodrigo B. Andrade
DOI:10.1016/j.tet.2019.130901
日期:2020.2
first reported in 2017 as a key step in the totalasymmetricsynthesis of (−)-albocycline, has been corrected by Mosher ester analysis. The reaction has been optimized and the scope investigated, with yields ranging from 68–89% and diastereomeric ratios as high as 5.9:1. Extensive investigation into the mechanisms affecting stereoselectivity revealed that two stereochemical erosion pathways are operative
First total synthesis of salinipyrone A using highly stereoselective vinylogous Mukaiyama aldol reaction
作者:Palakuri Ramesh、Harshadas Mitaram Meshram
DOI:10.1016/j.tet.2012.08.035
日期:2012.11
A synthetic approach for the totalsynthesis of salinipyrone A has been developed. Key steps involve the TiCl4-mediated vinylogousMukaiyamaaldolreaction (VMAR) of chiral ketene silyl N,O-acetal with propionaldyhyde, an aldol condensation, Witting olefination, and a cyclization. The synthesis proceeds in eight steps.