反应详情

The starting material can be obtained according to the procedure of A. R. Todd and F. Bergel, J. Chem. Soc. 1937, 365 by reaction of p-n-heptylbenzamidine hydrochloride with α-ethoxymethylene- α-cyanoacetic acid ethyl ester and sodium ethylate in ethanol and then with sodium hydroxide solution. The resulting 5-cyano-4-hydroxy-2-(4-n-heptylphenyl)-pyrimidine (melting point 195.6°-198.6° C) is treated with phosphorus oxychloride to give 4-chloro-5-cyano-2-(4-n-heptylphenyl)-pyrimidine having a melting point of 76.3°-76.8° C.

1. customThe starting material can be obtained