E. V. Luzikova

Catalytic coupling of terminal acetylenes with iodoarenes and diaryliodonium salts in water

Abstract The catalytic coupling of terminal acetylenes with iodoarenes and diaryliodonium salts are shown to occur in aqueous K 2 CO 3 in the presence of 10 mol.% Bu 3 N under very mild conditions using PdCl 2 (PPh 3 ) 2 and CuI as catalyst precursor to give substituted tolans in high yields.

Palladium catalyzed cross-coupling reaction of Grignard reagents with halobenzoic acids, halophenols and haloanilines

Abstract Convenient syntheses of substituted benzoic acids, phenols and anilines have been achieved by using pall cross-coupling reactions between Grignard reagents and aryl halides containing carboxy, hydroxy and amino groups without a protection-deprotection sequence.

PALLADIUM-CATALYZED ACYLDEMETALLATION OF ORGANOMERCURIALS IN AQUEOUS MEDIA

Palladium- and iodide ion-catalyzed acyldemercuration of R2Hg(RHgI) by aroyl chlorides (ArCOCI) can be carried out in aqueous media. Nonsymmetrical ketones (ArCOR) are obtained in high yields along wiht oxidative demercuration products (R2) in trace quantities. The possible reaction mechanism and the role of the iodide ion are discussed.