Patent ID: 7553910
Filing Date: 2009-06-30
Classification: C07C

Abstract:
1. Process for preparing a compound of the formula (I) wherein the R comprising the step of reacting a compound of the formula (II) wherein R with the a compound of the formula (III) wherein Me wherein said step of reacting is performed in the presence of water, a carbonyl containing compound and an organic solvent, in a pH range of 7 to 14 at a reaction temperature of 0° to 90° C., until the compound of the formula (I) reaches a percent yield of at least 80% based on the salts of the formula (III), further wherein the amount of the compound of the formula (II) is 180 to 250 mol % based on the moles of the compound of the formula (III) used, the amount of the carbonyl containing compound is 5 to 600 mol % based on the moles of the compound of the formula (III) used, and the amount of the organic solvent is 2 to 100,000 parts by weight based on 100 parts by weight of the theoretical yield of the compound of the formula (I).