Changduo Pan

Cu(OAc)2-Catalyzed N-Arylation of Sulfonamides with Arylboronic Acids or Trimethoxy(phenyl)silane

Abstract Cu(OAc)2-catalyzed C-N bond-formation reaction of sulfonamides with organoboronic acids or trimethoxy(phenyl)silane was achieved in the presence of 20 mol% of Cu(OAc)2, providing N-arylation products with yields ranging from moderate to good.

Copper-Catalyzed Sequential Alkyl/Aryl or Vinyl Esterification of Dicarboxylic Acid Anhydrides with Alkoxysilanes

A copper(I)-catalyzed bis-esterification of cyclic anhydrides with aryl and vinyl alkoxysilanes is described, in which the alkoxy and aryl (or vinyl) esters of dicarboxylic acids were prepared in one pot with moderate to good yields. Notably, vinyl trimethoxysilanes also worked well with this procedure.

Iron-catalysed Sonogashira reactions

A catalytic system has been developed that used an iron/ligand combination for the Sonogashira cross coupling of terminal alkynes with aryl iodides, which affords products in good to excellent yields.

Rhodium-Catalyzed Dimerization of Diaryl Acetylenes in the Presence of Grignard Reagents: Synthesis of 1,2,3-Triphenyl Naphthalene Derivatives

Abstract An efficient Rh-catalyzed dimerization of diaryl acetylenes was achieved in the presence of Wilkinson catalyst, AgF2, and 1.5 equivalent of PhMgBr in toluene, providing the 1,2,3-triaryl naphthalene derivatives in moderate to good yields. Supplemental materials are available for this article. Go to the publishers online edition of Synthetic Communications to view the free supplemental file. GRAPHICAL ABSTRACT

Palladium-catalyzed kumada reaction employing aminophosphine as ligand

Abstract In this article a palladium‐catalyzed Kumada reaction was reported. The procedure was mild and tolerated a series of aryl bromides, affording the biaryls in good to excellent yield.