Pd(II)/Bu4NBr/DMSO Catalytic System for Practical Synthesis of Indoles and Pyrroles from Imines through Aerobic Dehydrogenative Cyclization
作者:Naohiko Yoshikai、Wei Tan、Xiaoya Hou
DOI:10.1055/s-0034-1379208
日期:——
scales (up to 55 mmol). N-Aryl- and N-allylimines derived typically from substituted acetophenones undergo palladium(II)-catalyzed dehydrogenative cyclization reactions in the presence of tetrabutylammonium bromide and molecular oxygen in DMSO to afford indole and pyrrole derivatives, respectively, in moderate to good yields. The reactions are operationally simple and can be readily performed on multigram
摘要 ñ -芳基-和Ñ -allylimines通常衍生自取代的苯乙酮经历钯(II)在四丁基溴化铵和分子氧在DMSO存在下得到的吲哚并吡咯衍生物,分别催化的脱氢环化反应,在中度至良好的产率。该反应操作简单,可以容易地以克级(最高55 mmol)进行。 ñ -芳基-和Ñ -allylimines通常衍生自取代的苯乙酮经历钯(II)在四丁基溴化铵和分子氧在DMSO存在下得到的吲哚并吡咯衍生物,分别催化的脱氢环化反应,在中度至良好的产率。该反应操作简单,可以容易地以克级(最高55 mmol)进行。