ChemInform Abstract: Palladium(0)‐Catalyzed Cross‐Couplings of 2‐Bromophosphinine.

Abstract

Palladium(0)-Catalyzed Cross-Couplings of 2-Bromophosphinine. -The new title Negishi-type cross-coupling reaction expands the scope of monobromophosphines, which are considered as poor substrates so far. Aryl-, alkenyl-, and alkynylzinc bromides are effective coupling partners. -(KOSTENKO, N.; ERICSSON, C.; ENGQVIST, M.; GONZALEZ, S. V.; BAYER*, A.; Eur. J. Org. Chem. 2013, 22, 4756-4759, http://dx.

Buchwald–Hartwig Amination of Phosphinines and the Effect of Amine Substituents on Optoelectronic Properties of the Resulting Coupling Products

“…In contrast to the variety of synthetic investigations into λ 3phosphinines based on conventional organic synthesis, the exploration of coupling reactions that involve transition-metal complexes is still in its infancy. Since the first report on the Pdcatalyzed Kosugi−Migita−Stille coupling of bromophosphinine, which affords 2,5-dithienylphosphinines, 5 only three other studies have been reported so far; specifically, these studies are concerned with a homocoupling and a Kosugi−Migita−Stille coupling of 2-bromophosphinines, which generates 2,2′biphosphinines 6 and 2-ethynylphosphinines, 7 respectively. Moreover, a Negishi coupling of 2-bromophosphinine with phenyllithium has been reported.…”