Rh<sup>I</sup>-Catalyzed Regio- and Stereospecific Carbonylation of 1-(1-Alkynyl)cyclopropyl Ketones: A Modular Entry to Highly Substituted 5,6-Dihydrocyclopenta[<i>c</i>]furan-4-ones
作者:Yanqing Zhang、Zuliang Chen、Yuanjing Xiao、Junliang Zhang
DOI:10.1002/chem.200900413
日期:2009.5.18
route: A novel RhI‐catalyzed regio‐ and stereospecific carbonylation reaction of (1‐alkynyl)cyclopropyl ketones by selective activation of a carboncarbon σ bond of the cyclopropane ring was demonstrated (see scheme). This method provides a general, efficient, stereoselective route to synthesise 1,3,5‐trisubstituted and 1,3,5,6‐tetrasubstituted 5,6‐dihydrocyclopenta[c]furan‐4‐one with convertible functional
高效途径:通过选择性活化环丙烷环的碳碳σ键,证明了一种新的Rh I催化的(1-炔基)环丙基酮的区域和立体定向羰基化反应(参见方案)。该方法为合成具有可转换官能团的1,3,5-三取代和1,3,5,6-四取代的5,6-二氢环戊[ c ]呋喃-4-酮提供了一种通用,有效的立体选择途径。