Palladium(<scp>II</scp>)-catalysed oxidation of carbon–carbon double bonds of allylic compounds with molecular oxygen; regioselective formation of aldehydes
作者:Takahiro Hosokawa、Shunji Aoki、Minoru Takano、Takatoshi Nakahira、Yoshinori Yoshida、Shun-Ichi Murahashi
DOI:10.1039/c39910001559
日期:——
Treatment of N-allylamides 1aâc and lactams 1dâf with molecular oxygen in the presence of [PdCl2(MeCN)2]âCuCl catalyst in anhydrous 1,2-dichloroethane containing hexamethylphosphoric triamide gives the corresponding aldehydes 2 regioselectively, while methyl ketones 3 become the major products in the presence of water.
N-烯丙基酰胺1a–c和内酰胺1d–f在[PdCl2(MeCN)2]–CuCl催化剂存在下,于无水1,2-二氯乙烷含六甲基磷酰胺中与分子氧反应,可以区域选择性地得到相应的醛2,而在水的存在下,主要的产物是甲基酮3。