ORGANOMANGANESE (II) REAGENTS XVI: COPPER-CATALYZED 1,4-ADDITION OF ORGANOMANGANESE CHLORIDES TO CONJUGATED ENONES

Article abstract of DOI:10.1016/S0040-4039(00)99434-6

Copper-catalyzed conjugate addition of organomanganese chlorides to conjugated enones in THF, at 0 deg C, leads to the 1,4-addition products in high yields.The scope of the reaction is very large and the results are generally better than those obtained from organomagnesium compounds in the presence of a copper salts as well as from organocopper or cuprate reagents.Furthermore organomanganese chlorides are indisputably cheaper and more stable than the latter.