| abstract |
Process for producing 3-chlorobenzaldehyde acetalsnof formula I wherein X isnan alkyl group having 1 to 5 carbon atomsnthe atoms, or both X together represent oligomethylenenthe group - (CH 2) n - where n isnan integer of 2 or 3, by reaction of 3-chlorobenzaldehydenwith an alcohol of the general formulanH - / CH 1 - (CH 2) n --CH 2,nOH / p OHnwhere n is 1 or 2 and p = 0 to 2, restsnin that the reaction occurs in the presencen0.1 to 5.0 g of catalyst per mole of aldehyde,nthe active ingredient of which is acidic saltsnor salts of strong acid and weak base,noptionally in the presence of an inert solvent,ntaking azeotropicnit removes water. |