A rare eta2-butadienyl complex from an alkyne double insertion with double vinylidene rearrangement.
A rare eta2-butadienyl Ir(III) complex with a weak Ir...C bond is formed from 1-alkyne double insertion with the independent double alkyne to vinylidene rearrangement. A reaction intermediate is isolated, and labeling and crossover experiments indicate the intramolecularity of both alkyne to vinylidene rearrangements.
Li
Xingwei
X
Department of Chemistry, Yale University, New Haven, Connecticut 06520-8107, USA.
Incarvito
Christopher D
CD
Crabtree
Robert H
RH