Utilization of Aldoses as a Carbonyl Source in Cyclocarbonylation of Enynes
作者:Keiichi Ikeda、Tsumoru Morimoto、Kiyomi Kakiuchi
DOI:10.1021/jo1012288
日期:2010.9.17
The reaction of enynes with acetyl-masked aldoses in the presence of a rhodium(I) catalyst resulted in cyclocarbonylation, thus avoiding the direct use of carbon monoxide, to afford bicyclic cyclopentenones. In rhodium catalysis, aldoses serve as a carbon monoxide equivalent by donating their carbonyl moieties on the acyclic aldehyde form to enynes. A variety of aldoses, including d-glucose, d-mannose