METHOD OF SYNTHESIS OF 3,4-DIHYDROXY-5-NITROBENZALDEHYDE Russian patent published in 1997 - IPC

Abstract RU 2098405 C1

FIELD: organic chemistry, chemical technology. SUBSTANCE: method of synthesis of 3,4-dihydroxy-5-nitrobenzaldehyde involves interaction of 4-hydroxy-3-methoxy-5-nitrobenzaldehyde with the strong nucleophilic agent that can be obtained by interaction of aromatic mercapto-compound with the strong organic or inorganic alkaline metal base, for example, lithium hydroxide. Reaction is carried out at increased temperature using aprotonic polar solvent. Reaction is carried out preferably in inert atmosphere. EFFECT: improved method of synthesis. 6 cl

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RU 2 098 405 C1

Authors

Ehrkki Khonkanen[Fi]

Stig Lindkhol'M[Fi]

Dates

1997-12-10—Published

1993-12-17—Filed