successive reaction of 2-chloroethylbenzamide with n-butyl-lithium and lithium naphthalenide at -78°C leads to N-lithio-N-(2-lithioethyl)benzamide, which reacts with different electrophiles (H2O, D2O, Me2S2, CO2, i-PrCHO, PhCHO, Me2CO, Ph2CO) to afford the expected 2-functionalized benzamides.
2-
氯乙基苯甲酰胺与
正丁基锂和
萘二
甲酸锂在-78°C的连续反应生成N-
硫代-N-(2-
硫代乙基)苯甲酰胺,后者与不同的亲电试剂(H 2 O,D 2 O, Me 2 S 2,CO 2,i-PrCHO,PhCHO,Me 2 CO,Ph 2 CO)得到预期的2-官能化的苯甲酰胺。