METHOD OF SYNTHESIS OF 4-[5,6,7,8-TETRAHYDROIMIDAZO(1,5-A)-PYRIDINE-5-YL]-BENZONITRILE HYDROCHLORIDE Russian patent published in 1994 - IPC

Abstract RU 2021271 C1

FIELD: organic chemistry. SUBSTANCE: product: crystalline semihydrate of 4-( 5,6,7,8 -tetrahydroimidazo -[1,5-a]- pyridine -5- yl)- benzonitrile hydrochloride of the general formula. This compound shows a definite interplanar lattice distance (d) and relative line intensity of powder roentgenogram obtained in Guignet's chamber at copper irradiation K_α1, and high stability under condition of relative humidity. Reagent 1: 4-( 5,6,7,8- tetrahydroimidazo- [1,5-a] - pyridine -5- yl)- benzonitrile. Reagent 2: hydrogen chloride. Reaction condition: in the presence of water. EFFECT: improved method of synthesis. 2 tbl

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RU 2 021 271 C1

Authors

Ibrakhim Jutta[Ch]

Dates

1994-10-15—Published

1991-01-11—Filed