51264-60-9Relevant articles and documents
Gold catalysed Suzuki-Miyaura coupling of arenediazonium o-benzenedisulfonimides
Barbero, Margherita,Dughera, Stefano
, p. 5758 - 5769 (2018/09/10)
Arenediazonium o-benzenedisulfonimides have been used as efficient electrophilic partners in Au(I) catalysed Suzuki coupling reactions. The synthetic protocol is general, easy and produced either biaryls or heteroaryl arenes in good yields (51 positive examples, average yield 80%). o-Benzenedisulfonimide was recovered at the end of the reactions and was reused to prepare the starting salts for further reactions. Mechanistic insights suggest that the o-benzenedisulfonimide anion act as an electron transfer agent and promotes a catalytic cycle which does not require the presence of photocatalysts or external oxidants.
Synthesis, characterization, and catalytic activity of nickel(II) alkyl complexes supported by pyrrole-diphosphine ligands
Venkanna, Gopaladasu T.,Tammineni, Swetha,Arman, Hadi D.,Tonzetich, Zachary J.
, p. 4656 - 4663 (2013/09/23)
The organometallic Ni(II) chemistry of the pyrrole-based pincer ligands (P2RPyr)- (P2RPyr = 2,5-(R2PCH2)2C4H2N, R = Ph, Cy) is reported. Reactions of Grignard reagents with [NiCl(P 2RPyr)] afford a variety of alkyl and aryl complexes (methyl, ethyl, benzyl, phenyl, and allyl) that all display square-planar geometries about nickel. The hydride complex [NiH(P2 CyPyr)] can also prepared either through treatment of [NiCl(P 2CyPyr)] with LiHBEt3 or by reaction of H(P2RPyr) with [Ni(COD)2] (COD = 1,4-cyclooctadiene). Reactions of the methyl and hydride complexes with CO and CO2, respectively, evince clean migratory insertion chemistry of the Ni-C and Ni-H bonds. Both the alkyl and chloride complexes are active catalysts for the Kumada coupling of aryl chlorides and aryl or alkyl Grignard reagents at room temperature. The solid-state structures of several of the complexes are reported.
Palladium acetate immobilized in a hierarchical MFI zeolite-supported ionic liquid: A highly active and recyclable catalyst for Suzuki reaction in water
Jin, Myung-Jong,Taher, Abu,Kang, Hee-Jae,Choi, Minkee,Ryoo, Ryong
experimental part, p. 309 - 313 (2010/04/22)
Palladium acetate was immobilized in thin ionic liquid layers on the mesopore wall of hierarchical MFI zeolite, and tested as a catalyst for Suzuki coupling reaction in water. The catalyst exhibited very high activity in the coupling of various aryl bromides with arylboronic acids. Moreover, the catalyst could be recycled without a significant loss of catalytic activity.