Palladium‐Catalyzed Umpolung Type‐II Cyclization of Allylic Carbonate‐Aldehydes Leading to 3‐Methylenecycloalkanol Derivatives
作者:Hirokazu Tsukamoto、Ayumu Kawase、Takayuki Doi
DOI:10.1002/adsc.201900450
日期:2019.8.21
umpolung type‐II cyclization of allylic carbonate‐aldehydes leading to 3‐methylenecycloalkanol derivatives was developed. The formate reductant was effective for the cyclization without causing a reduction of the η3‐allylpalladium intermediate. One‐pot decarboxylative allylation of aldehyde‐containing malonate with 2‐[(acetyloxy)methyl]‐2‐propenyl methyl carbonate followed by the cyclization of the allyl