A Simplified Protocol for the Stereospecific Nickel-Catalyzed C–S Vinylation Using NiX₂ Salts and Alkyl Phosphites

Abstract

A Ni-catalyzed C–S cross-coupling using only NiI₂ (0.5–2.5 mol%) and P(OiPr)₃ (2.0–10.0 mol%) is reported. Using an air-stable Ni(II) precatalyst, and a cheap and commercially available ligand, a scalable and robust method was developed to cross-couple various thiophenols and styryl bromides, including some sterically encumbered thiols, an α-bromocinnamaldehyde as well as a thiolation-cyclization.

Key words

nickel - cross-coupling - scalable - heterocycles

• References


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