HRID1984091

反应详情

EQUATION

反应方程式

HRID 1984091 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

A solution of 1-(pent-4-ynyl)piperazine (2.2 g) and Et3N (22 mL) in 1,2-dichloroethane (22 mL) was treated with p-nitrophenyl chloroformate (2.9 g) at rt for 10 min. Work-up and silica gel chromatography (DCM:EtOAc 1:3→0:3) gave 4-nitrophenyl 4-(pent-4-ynyl)piperazine-1-carboxylate as a yellow oil (2.96 g).