Mechanistic Investigation of Rh<sup>I</sup>–Catalyzed Cycloisomerization of Benzylallene-Internal Alkynes via C–H Activation
作者:Yasuaki Kawaguchi、Shigeo Yasuda、Chisato Mukai
DOI:10.1021/acs.joc.7b01048
日期:2017.7.21
effected a cycloisomerizationvia a Csp2–H bond activation to produce the tricyclo[9.4.0.03,8]pentadecapentaene skeleton. The reaction mechanism viaformation of the rhodabicyclo[4.3.0] intermediates and σ-bond metathesis between the Csp2–H bond on the benzene ring and the Csp2–RhIII bond was proposed. In addition, a plausible alternative mechanism for the previously reported cycloisomerization of the