Preparation of o-nitrobenzaldehyde

Details Preparation of o-nitrobenzaldehyde Preparation of o-nitrobenzaldehyde

1983-03-17

1984-05-22

Helfin, Bernard

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568583, C07C 4578, C07C 7936, C07C 7606

Patent

active

044502974

ABSTRACT:
A process for the preparation of o-nitrobenzaldehyde, comprising converting to the corresponding acetals a mixture of nitrated benzaldehyde which contains about 10 to 30% of o-nitrobenzaldehyde and about 70 to 90% of m-nitrobenzaldehyde, removing the o-nitrobenzaldehyde acetal by distillation, and then converting the o-nitrobenzaldehyde acetal to o-nitrobenzaldehyde.

REFERENCES:
patent: 1509412 (1924-09-01), Bissell
patent: 3757006 (1973-09-01), Nedenskov
patent: 4203928 (1980-05-01), Meyer
patent: 4297519 (1981-10-01), Ertel

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