Coordinattvely induced 1,4-diastereoselection in the reaction of acyclic α,β-enones with organocopper reagents. A new type of organocopper reagent
作者:E.J. Corey、Francis J. Hannon、Neil W. Boaz
DOI:10.1016/0040-4020(89)80082-1
日期:1989.1
of a stereochemical prediction for conjugateaddition based on the intermediacy of d,π∗-complexes in the reaction of organocopper reagents with α,β-enones. The chiral α,β-enone 7 has been synthesized and subjected to reaction with various methylcuprate reagents. Under conditions favorable to lithium chelation to the α-alkoxycarbonyl system of 7, conjugateaddition to 7 was found to proceed with high