Stereoselective Intramolecular Aminocarbonylation of 3-Hydroxypent-4-enylamides Catalyzed by Palladium
作者:Yoshinao Tamaru、Takuji Kobayashi、Shin-ichi Kawamura、Hirofumi Ochiai、Zen-ichi Yoshida
DOI:10.1016/s0040-4039(00)88935-2
日期:1985.1
The urethanes and tosamides of 3-Hydroxypent-4-enylamine and its C1 C4 substituted derivatives undergo the palladium catalyzed intramolecular aminocarbonylation (0.1 equiv of PdCl2, 3.0 equiv of CuCl2, 3.0 equiv of NaOAc in acetic acid under ca. 1 atm of CO) to give selectively cis 3-hydroxypyrrolidine 2-acetic acid lactone and its C2 C5 substituted derivatives in good yields (66 – 90%), respectively
的氨基甲酸乙酯和3-羟基戊-4-烯基胺的tosamides和其C 1 Ç 4取代的衍生物经历钯催化氨基羰基化的分子内(0.1当量的PdCl的2,3.0当量的CuCl 2,在大约下乙酸3.0当量的NaOAc 1个大气压的CO),得到顺式选择性3-羟基吡咯烷-2-乙酸内酯和其C 2 ç 5以良好的收率(66取代的衍生物-分别为90%)。