METHOD OF SYNTHESIS OF IMIDAZO-(1,2-B)-PYRIDAZINE OR THEIR SALTS AND IMIDAZO-(1,2-B)-PYRIDAZINE DERIVATIVES OR THEIR SALTS

摘要

FIELD: organic chemistry. SUBSTANCE: method of synthesis of derivatives of imidazo-(1,2-b)-pyridazine of the formula (I) where R₁, R₂, R₃, X - as indicated in description is carried out by interaction of compound of the formula (II) where R₁ and Z - as indicated in description with compound of the formula (III) where Alk, X, R₂, R₃ - as indicated above. EFFECT: improved method of synthesis. 3 cl, 3 tbl