3 years ago

Pd-Catalyzed Cross-Coupling of Terminal Alkynes with Chromium(0) Fischer Carbene Complexes

Pd-Catalyzed Cross-Coupling of Terminal Alkynes with Chromium(0) Fischer Carbene Complexes
Kang Wang, Fengjin Wu, Yan Zhang, Jianbo Wang
Alkyl chromium(0) carbene complexes typically undergo cycloadditions with alkynes to afford carbo- or heterocyclic compounds. In the presence of Pd catalyst, it is demonstrated that a traditional cycloaddition pathway is completely altered: instead of cycloaddition, oxidative cross-coupling reaction of alkyl chromium(0) carbene complexes with terminal alkynes occurs. The coupling reaction exhibits excellent functional group tolerance and good efficiency.

Publisher URL: http://dx.doi.org/10.1021/acs.orglett.7b01096

DOI: 10.1021/acs.orglett.7b01096

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