A mechanistic investigation of carbon–hydrogen bond stannylation: synthesis and characterization of nickel catalysts†
Abstract
The complex (iPr3P)Ni(η2-Bu3SnCHCH2)2 (1a) was characterized by
CH2, which generates C6F5SnBu3 and
CH2)2 (1b) provides a more easily handled analogue, and is also capable of catalytic
CH2 and C6F5H. Mechanistic studies on 1b show that the catalytically active species remains mononuclear. The rate of catalytic
CH2]. This is consistent with a mechanism where reversible Ph3SnCH
CH2 dissociation provides (iPr3P)Ni(η2-Ph3SnCH
CH2), followed by a rate-determining reaction with C6F5H to generate the stannylation products. Kinetic competition reactions between the fluorinated aromatics
- This article is part of the themed collection: New Talent: Americas