Alkyne Carbonyl Metathesis As a Means To Make 4-Acyl Chromenes: Syntheses of (±)-Deguelin and (±)-Munduserone
作者:Maloy Nayak、Ikyon Kim
DOI:10.1021/acs.joc.5b02160
日期:2015.11.20
A highly convergent synthetic approach to rotenoid natural products is described. Successful,pairing of two building blocks,for Sonogashira cross-coupling and intramolecular alkyne carbonyl metathesis allows ready, access to 4-acylchromene, a key substructure of these natural products, leading to syntheses of (+/-)-degnelin and (+/-)-munduserone in high overall yields.