Hydrochloric Acid → HCID 178516641, 화합물

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To sodium ethoxide (48 ml of a 21% wt solution in ethanol diluted with a further 130 ml ethanol) was added 4-chlorobenzamidine (8 g) and diethyl malonate (6.67 ml) and the solution left to stir at 40° C. for 96 hrs. The reaction mixture was subsequently cooled to 5° C. and acidified cautiously to pH 2 using concentrated hydrochloric acid. The solid thus precipitated was filtered, washed with excess cold water, then 50 ml diethyl ether and dried in vacuo yielding the title compound (7.51 g).

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