Method for producing aqueous ortho-phthalaldehyde solutions

Details Method for producing aqueous ortho-phthalaldehyde solutions Method for producing aqueous ortho-phthalaldehyde solutions

C - Chemistry, Metallurgy

07

C

C07C 47/544 (2006.01)

Patent

CA 2538424

A method for producing aqueous ortho-phthalaldehyde solutions which comprises introducing an acetal of the o-phthalaldehyde into water and subsequently setting a pH < 7 by adding an acid, whereupon, then at a temperature between 10°C and 90°C, the acetal is converted into the o-phthalaldehyde by eliminating the corresponding alcohol, and also use of OPA acetals for producing these solutions.

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