Preparation of esters of carboxylic acids in improved yields in shorter reaction times by use as catalysts organic compounds and complexes of certain Group VA and VIA elements. The method optionally uses a soluble iodide for further increase in yield.
Process for the quantitative preparation of esters, with a high yield, which comprises reacting an aldehyde or ketone compound and an acid halide compound in a one pot reaction in the presence of at least one compound represented by the following formulae: in which R represents a hydrocarbon group, and X represents a halogen atom. Production processes of a resist material and a semiconductor device are also disclosed.
An improved process for preparing reduced-odor or odorless esters, preferably benzoate esters, octanoate esters, aliphatic emollient esters and glycol dibenzoate esters. The improved process comprises, in part, removing the esterification catalyst from the crude ester after the esterification reaction is substantially complete, before neutralization of acidity. The resultant ester compositions are odorless or have substantially reduced odor as compared to commercially available esters.
