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US 3,947,490 AGranted
Process for preparing omega-formyloxy-alkanals
AssigneeRhone-Poulenc Inc.
InventorsJean Claude Brunie, Michel Costantini, Noel Crenne, Michel Jouffret
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Abstract
An improved process for preparing .omega.-formyloxy-alkanals from the corresponding cycloalkyl peroxides and formic acid is provided in which the process is carried out in the presence of a small amount of a strong acid having a pKa of less than 2.
Claims9
In a process for the preparation of an .omega.-formyloxy-alkanal of the general formula:
- HC(O)O(CH.sub.2).sub.n CHO
- in which n represents an integer from 5 to 11, which comprises reacting formic acid with a cycloalkyl hydroperoxide of the formula:
- ##EQU2## in which n is as defined above, the improvement wherein the reaction is carried out in the presence of 0.005 to .5 hydrogen ion per liter of formic acid of a strong acid with a pK of less than 2.
Process for the preparation of .omega.-formyloxyhexanal which comprises reacting cyclohexyl hydroperoxide with formic acid in the presence of 0.005 to 0.5 hydrogen ion per liter of formic acid of a strong acid having a pKa of less than 2.
Dependencies are inferred from the claim text.