Aerobic ligand-free Suzuki coupling catalyzed by in situ-generated palladium nanoparticles in water
作者:Debasree Saha、Kalicharan Chattopadhyay、Brindaban C. Ranu
DOI:10.1016/j.tetlet.2008.12.063
日期:2009.3
efficient procedure for Suzukicoupling of aryl bromides/iodides with aryl- and alkylboronicacids catalyzed by in situ-generated palladium(0) nanoparticles in water without any ligand in open air to produce a variety of functionalized biaryls and alkyl-aryls has been developed. The boronic acids act here as the reducing agent for the formation of Pd nanoparticles. The reactions are remarkably fast (5 min)
N-Heterocyclic Carbene Derived Nickel-Pincer Complexes: Efficient and Applicable Catalysts for Suzuki-Miyaura Coupling Reactions of Aryl/Alkenyl Tosylates and Mesylates
作者:Jun-ichi Kuroda、Kiyofumi Inamoto、Kou Hiroya、Takayuki Doi
DOI:10.1002/ejoc.200900067
日期:2009.5
activities of NHC-derived nickel–pincercomplexes for the Suzuki–Miyauracouplingreactions of aryl/alkenyltosylates and mesylates are described. In the presence of a catalytic amount of nickelacycle 1a, a wide array of tosylates and mesylates reacted with several aryl- and alkenylboronic acids to afford the coupling products, generally in high yields. Fine tuning of the reaction conditions for each class
Sequential borylation of a first aryl iodide using a dialkylaminoborane followed by a Suzuki-Miyaura cross coupling of second aryl iodide ended up with an efficient, selective and practical synthesis of unsymmetrical biaryls. This tandem coupling shows a wide range of applicability.
Palladium-catalyzed desulfinylative Negishi C–C bond forming cross-couplings of sulfonyl and organozinc chlorides
作者:Srinivas Reddy Dubbaka、Pierre Vogel
DOI:10.1016/j.tetlet.2006.03.101
日期:2006.5
Arene-, phenylmethane- and alkenesulfonyl chlorides are suitable electrophilic reagents in desulfinylative carbon–carbon bond formation cross-coupling reactions with organozinc reagents.
芳烃,苯甲烷和链烷磺酰氯是与有机锌试剂发生脱硫酰化碳-碳键形成交叉偶联反应的合适亲电试剂。
Palladium-Catalyzed Stille Cross-Couplings of Sulfonyl Chlorides and Organostannanes
作者:Srinivas Reddy Dubbaka、Pierre Vogel
DOI:10.1021/ja038328q
日期:2003.12.1
% tri-2-furylphosphine in tetrahydrofuran or toluene under reflux. This extension of the Stille cross-couplingreaction realizes a new and economical method for the generation of C-C bonds. The palladium-catalyzed carbonylative Stille cross-couplingreactions of arenesulfonyl chlorides and organostannanes in the presence of CO (60 bar) at 110 degrees C in toluene generate the corresponding ketones.