FORFARANDE FOR FRAMSTELLNING AV D,D'-2,2'-(ETYLENDIIMINO)-DI-1-BUTANOL-DIHYDROKLORID

摘要

1345478 Ethambutol hydrochloride AMERICAN CYANAMID CO 24 Jan 1972 [11 Feb 1971] 3319/72 Heading C2C Ethambutol hydrochloride is prepared by reacting ethylene dichloride with a substantial excess of d-2-aminobutanol, adding sufficient finely divided NaOH to react with the combined HC1 present, distilling off the excess aminobutanol, adding a C 2-4 alkanol, separating the NaCl and treating the solution with HCl.