Method for preparing glyoxylic acids and derivatives thereof

C - Chemistry – Metallurgy – 07 – C

Patent

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260/488, 260/552

C07C 59/84 (2006.01) C07C 51/08 (2006.01) C07C 69/738 (2006.01)

Patent

CA 1146175

ABSTRACT Glyoxylic acids or derivatives thereof are prepared by reacting an acyl nitrile compound with concentrated sulfuric acid in the presence of halide anion to form a first reaction product and then further reacting the first reaction product with a compound of the general formula ROH to form the desired glyoxy- lic acid or glyoxylic acid derivative.

341157

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