Fig. 7: Proposed reaction mechanism. | Nature Communications

Fig. 7: Proposed reaction mechanism.

From: Ni-catalyzed regio- and stereo-defined intermolecular cross-electrophile dialkylation of alkynes without directing group

Fig. 7

Specifically, A, B: Ni (II) intermediates of cyclometallation of alkynes with enones; C, D: Ni (II) intermediates after Ni-O bond dissociation; E: Ni (I) intermediate reduced by Zn; F: transition state for single-electron reduction of Ni (I) with alkyl bromides; G: Ni (III) intermediate of oxidative addition to alkyl bromides.

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