Angewandte Chemie - International Edition p. 4035 - 4039 (2016)
Update date:2022-08-03
Topics:
Liang, Yujie
Jiao, Ning
The unique regioselectivity and reactivity of cobalt(III) in the direct cyclization of N-nitrosoanilines with alkynes for the expedient synthesis of N-substituted indoles is demonstrated. In the presence of a cobalt(III) catalyst, high regioselectivity was observed when using unsymmetrical meta-substituted N-nitrosoanilines. Moreover, internal alkynes bearing electron-deficient groups, which are almost unreactive in the [Cp?RhIII]-catalyzed system, display good reactivity in this transformation.
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