The carbometalation of C–C multiple bonds is a very important organic transformation. 1 In particular, the development of allylmetalation of simple unactivated alkynes toward the synthesis of 1,4-dienes is valuable in organic synthesis because of the utility of 1,4-dienes and the limited number of allylmetals available for this purpose. 2 To date various allylmetalations have been reported on the basis of nucleophilic character of allylmetals obtained from allyl halides ...
