Palladium-Catalyzed Nucleophilic Benzylic Substitutions of Benzylic Esters
作者:Ryoichi Kuwano、Yutaka Kondo、Yosuke Matsuyama
DOI:10.1021/ja037735z
日期:2003.10.1
A palladium complex generated in situ from [Pd(eta3-C3H5)(cod)]BF4 and DPPF is a good catalyst for benzylic alkylation of benzyl methyl carbonate with the carbanion of dimethyl malonates. The catalytic reaction is applicable to a wide range of the benzylations of benzylic esters with malonates. The catalytic activity was heavily affected by the bite angle of the bidentate phosphine ligand on palladium
The Preparation of Methyl-substituted DL-Phenylalanines
作者:Ross R. Herr、Takashi Enkoji、Joseph P. Dailey
DOI:10.1021/ja01572a065
日期:1957.8
New method for the synthesis of optically active .alpha.-amino acids and their N.alpha. derivatives via acylamino malonates
作者:Arieh Berger、Moshe Smolarsky、Nurith Kurn、Hans Rudolf Bosshard
DOI:10.1021/jo00943a009
日期:1973.2
Palladium-Catalyzed Benzylation of Active Methine Compounds without Additional Base: Remarkable Effect of 1,5-Cyclooctadiene
作者:Ryoichi Kuwano、Yutaka Kondo
DOI:10.1021/ol048540e
日期:2004.9.1
The palladium complex prepared from DPPF and Cp(eta(3)-C3H5)Pd is an effective catalyst for the alkylation of active methine compounds with benzylic carbonates under neutral conditions. The addition of 1,5-cyclooctadiene brought about remarkable improvement in the lifetime of the palladium catalyst, which led to high yields of the desired benzylation products.
Substituted Acetamidomalonic Esters and dl-2-Acetamido Acids as Antitumor Agents