反应详情

Methyl 2-amino-5-phenyl-thiophene-3-carboxylate (1.3 g, 0.0055 mole) in hexamethyl phosphoramide (prepared by the method of Chemische Berichte, 99, 94 (1966) but using methyl cyanoacetate in place of ethyl cyanoacetate) (20 ml.) was stirred and treated with benzoyl chloride (1.56 g, 1.28 ml, 0.011 mole). The solution was stirred for 2 hours, poured into water (750 ml), stored overnight and the title compound filtered off (1.31 g) m.p. 190° C.

1. stirringThe solution was stirred for 2 hours
2. filtrationthe title compound filtered off (1.31 g) m.p. 190° C.