反应详情

Pyrrolidine (2.07 g, 0.0292 m) is added to 4.00 g (0.0292 m) of an ice-cooled solution of ethyl N,2-dicyanoacetimidate in 80 ml of tetrahydrofuran and stirred for two hours at room temperature. The crude product is isolated and chromatographed in the same manner as that of Example 2. The tlc-pure crystalline product (4.80 g) is triturated with diethyl ether to give 4.00 g (84%), mp 45° C. Nmr and ir are consistent.