Oxygen ylides - II.
作者:Wolfgang Kirmse、Pham Van Chiem、Volker Schurig
DOI:10.1016/s0040-4039(00)61878-6
日期:1985.1
Photolysis of diazomethane in (S)-2-methyloxetane gives 2- and 3-methyltetrahydrofuran (1:3.2), the latter being formed with 21 % net retention of configuration. In contrast, rhodium acetate catalysis yields racemic 3-methyltetrahydrofuran exclusively.
重氮甲烷在(S)-2-甲基氧杂环丁烷中的光解得到2-和3-甲基四氢呋喃(1:3.2),后者的构型净保留率为21%。相反,乙酸铑催化仅产生外消旋的3-甲基四氢呋喃。