METHOD OF SYNTHESIS OF GLUTACONIC ALDEHYDE DIANIL CHLOROHYDRATE Russian patent published in 1996 - IPC

Abstract SU 1779020 A1

FIELD: chemical technology. SUBSTANCE: reagent 1: 2,4-dinitrochlorobenzene; reagent 2: pyridine; reagent 3: aniline. Reaction conditions: condensation of reagents 1 and 2 at boiling in isopropanol, splitting formed quaternary salt in isopropanol at boiling in reaction mass directly with reagent 3. Synthesized compound is used in synthesis of polymethine dyes. EFFECT: simplified process, high yield and quality of the end product.

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SU 1 779 020 A1

Authors

Rumjantseva L.I.

Kuzeeva N.L.

Katkova I.G.

Dates

1996-11-10—Published

1989-12-27—Filed