Preparation of perfluorocyclopentenylmetal species and their cross-coupling reaction with electrophiles—Remarkable accesses to versatile perfluorocyclopentene derivatives
作者:Shigeyuki Yamada、Emi Ishii、Tsutomu Konno、Takashi Ishihara
DOI:10.1016/j.tet.2008.02.089
日期:2008.5
at −78 °C for 1 h, perfluorocyclopentenylstannane was obtained in good yield. The reaction of the fluorinated vinylstannane with n-BuLi in THF at −78 °C for 1 h, followed by addition of carbonyl compounds, gave the corresponding allyl alcohols in good yields. On the other hand, Pd(0)-catalyzed cross-coupling reaction of perfluorocyclopentenylstannane with benzyl chloroformate in THF at reflux temperature
在-78°C下用THF中的双(三丁基锡烷基)氰基丙二酸酯在THF中处理全氟环戊烯1小时,可以得到高收率的全氟环戊烯锡烷。氟化乙烯基锡烷与正丁基锂在THF中于-78°C反应1 h,然后添加羰基化合物,从而以良好的收率得到相应的烯丙醇。另一方面,Pd(0)催化全氟环戊烯基锡烷与氯甲酸苄酯在THF中回流温度下2h的交叉偶联反应顺利进行,以高收率形成脱碳偶联产物。