Benzoyl chloride → N-(3-Carboxymethyl-5-phenyl-2-thienyl)-benzamide

참여 물질

반응 단계

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. Similarly prepared was: N-(3-Carboxymethyl-5-phenyl-2-thienyl) cyclohexane carboxamide, m.p. 121°-122° C.

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