A PROCESS FOR PRODUCING O-NITROBENZALDEHYDE

摘要

o-Nitrobenzaldehyde is produced by treating an o-nitrophenyl pyruvate precursor compound with an oxidizing agent and recovering o-nitrobenzaldehyde from the mixture obtained: the precursor compound is an alkyl ester of o-nitrophenyl pyruvic acid in the form of the enol salt or enol ester having the formula

in which R1 is a C1-C4 alkyl group and X is the monovalent residue of an alkali metal atom, an alkaline earth metal atom, or of aluminum or an acyl group of the formula -C(O)R<2>, in which R<2> is hydrogen or a C1-C3 alkyl group; the oxidizing agent is hydrogen peroxide.