Coordination Modes and Catalytic Carbonylative [4 + 1] Cycloaddition of Vinylallenes
作者:Masahiro Murakami、Kenichiro Itami、Yoshihiko Ito
DOI:10.1021/om990028n
日期:1999.3.1
the rhodium-catalyzed carbonylative [4 + 1] cycloadditionreaction of vinylallenes, affording five-membered carbocycles. With a nonsymmetrical vinylallene, face-selective η4-coordination from the less hindered side of the allenyl group was observed. The achievement of [4 + 1] carbonylation can be attributed to (i) the substantial facility of substituted vinylallenes for η4-coordination and (ii) the