Process for the preparation of percarboxylic acids

Abstract

Abstract 1. IN THE PREPARATION OF A PERCARBOXYLIC ACID BY REACTION AT A TEMPERATURE OF ABOUT -20 TO 100*C. OF A CARBOXYLIC ACID OR ITS ANHYDRIDE WITH HYDROGEN PEROXIDE, THE CARBOXYLIC ACID BEING SELECTED FROM THE GROUP CONSISTING OF ALKANOIC, HALOGEN SUBSTITUTED ALKANOIC, BENZOIC AND NITRO-SUBSTITUTED BENZOIC ACIDS, THE IMPROVEMENT WHICH COMPRISES ADDING TO A DILUTE AQUEOUS HYDROGEN PEROXIDE SOLUTION A PHOSPHORUS COMPOUND OF THE FORMULA R1-(X)M-P(=O)(-(V)N-R2)-(Z)P-R3 WHEREIN: X, Y AND Z EACH INDIVIDUALLY IS AN OXYGEN ATOM, AN $N-C1-C6 ALKYL OR AN $N-C4-SC7 CYCLOALKYL GROUP, M, N AND P EACH INDIVIDUALLY IS 0 OR 1, R1 R2 AND R3 EACH INDIVIDUALLY IS A C1-C6 ALKYL OR C4-C6 CYCLOALKYL RADICAL OPTIONALLY SUBSTITUTED WITH HALOGEN, OH, LOWER ALKOXY, CN OR PHENYL; OR A PHENYL RADICAL OPTIONALLY SUBSTITUTED WITH HALOGEN, OH, LOWER ALKYL OR ALKOXY, CARBO-LOWER ALKOXY OR CN, OR TWO OF R1, R2 AND R3 AND R3 TOGETHER COMPRISE AN ALKYLENE RADICAL FORMING A 5-TO 7-MEMBERED HETEROCYCLIC RING CONTAINING PHOSPHORUS AS A HETERO ATOM, REMOVING THE WATER FROM SAID AQUEOUS HYDROGEN PEROXIDE PHOSPHORUS COMPOUND-CONTAINING SOLUTION AT LEAST IN PART, AND USING THE RESIDUE TO EFFECT AND REACTION WITH SAID CARBOXYLIC ACID OR ITS ANHYDRIDE.

Inventors

• 👤 H Waldmann
• 👤 W Schwerdtel
• 👤 W Swodenk

Bibliographic Details