To obtain the subject compound used in cosmetics such as deodorants and in laundry products such as detergents, generating an aroma on contact with skin, and capable of being used in the detergents to extend fragrant effects to textiles.
A carbonic acid equivalent, phosgene, etc., is reacted with an alcohol or mercaptan in the presence of a base to obtain the perfume precursor of the formula [R1, R2 are each the residue of an aromatic alcohol or aromatic mercaptan: R1XH or R2XH; R3, R4 are each H, a 1-6C alkyl, etc.; X is O, S; (m) is 0-2]. For example, bis(2-phenylethyl) carbonate ester is obtained by adding phenethyl alcohol to the dichloromethane solution of triphosgene, cooling the mixture in a water bath, simultaneously dropwisely adding pyridine to the cooled mixture, stirring the mixture at room temperature, diluting the reaction product with dichloromethane, washing the diluted solution with an aqueous HCl solution and with an aqueous NaHCO3 solution, drying the organic phase, filtering the dried organic layer, subjecting the filtrate to an evaporation treatment to dryness, recrystallizing the crystals and subsequently again recrystallizing the crystals in hexane: methyl t-butyl ether (50ml: 50ml).
FRATER GEORG