Asymmetric Intermolecular C−H Activation, Using Immobilized Dirhodium Tetrakis((<i>S</i>)-<i>N</i>-(dodecylbenzenesulfonyl)- prolinate) as a Recoverable Catalyst
作者:Huw M. L. Davies、Abbas M. Walji
DOI:10.1021/ol0273506
日期:2003.2.1
readily achieved on a pyridine functionalized highly cross-linked polystyrene resin. The immobilized complex is readily recycled and exhibits excellent catalytic activity for asymmetric intermolecular C-H activation by means of rhodium carbenoid induced C-H insertion.
Iridium(III) Catalyzed Diastereo- and Enantioselective C−H Bond Functionalization
作者:Hidehiro Suematsu、Tsutomu Katsuki
DOI:10.1021/ja9065267
日期:2009.10.14
Iridium(III)-salen complexes were found to efficiently catalyze the enantioselectiveC-H carbene insertion. The insertion reaction at the alpha-position of tetrahydrofuran or at the methylene of 1,4-cyclohexadiene proceeded with high enantio- (up to 99%) and diastereoselectivity (up to >20:1 dr; in the former reaction) by using an appropriate combination of complex (1, 2, or 3) and alpha-diazoacetate