Palladium-Catalyzed Highly Stereoselective Synthesis of <i>N</i>-Aryl-3-arylmethylisoxazolidines via Tandem Arylation of <i>O</i>-Homoallylhydroxylamines
作者:Jinsong Peng、Wenqing Lin、Shixue Yuan、Yuanwei Chen
DOI:10.1021/jo0625958
日期:2007.4.1
The palladium-catalyzed tandem arylation of O-homoallylhydroxylamines with 2 equiv of aryl bromides was examined. With Pd2(dba)3 (1 mol %) as the catalyst, Xantphos (2 mol %) as the ligand, and NaOt-Bu as the base, the reactions of O-homoallylhydroxylamines with aryl bromides via sequential N-arylation/cyclization/C-arylation in toluene afforded the corresponding N-aryl-3-arylmethylisoxazolidines in
研究了O-高烯丙基羟胺与2当量芳基溴化物的钯催化串联芳基化反应。用Pd 2(DBA)3(1摩尔%)作为催化剂,加入Xantphos(2摩尔%)作为配体,及NaO叔卜为基准,的反应ö -homoallylhydroxylamines与芳基溴化物与经顺序N-芳基化/在甲苯中的环化/ C-芳基化以良好的收率和优异的非对映选择性提供了相应的N-芳基-3-芳基甲基异恶唑烷。