Patent ID: 7932410

Claim:
A process for preparation of a compound of the formula (I) wherein R 2 is selected from the group consisting of a branched or unbranched, saturated, ethylenically mono or di unsaturated aliphatic radical, Z is selected from the group consisting of —CH 2 OH, —CH 2 OAc or —CHO, m is a whole positive integer of one or more, and Ac is an acetyl group wherein the process comprises reacting a substituted and unsubstituted 1-alken-3-yl alkylate compound of the formula (II) wherein R 2 is selected from the group consisting of a branched or unbranched, saturated, ethylenically mono or di unsaturated aliphatic radical, and R 3 is branched or unbranched alkyl group of 2 or more carbon atoms, with a halo alkanol Grignard reagent of the formula (III) X—(Mg) n —(CH 2 )m-Y (III) in the presence of a catalyst, wherein X is a halogen selected from the group consisting of CI, Br and I, n is 1, m is a whole positive integer of 1 or more, and Y is selected from the group consisting of —O—Mg +2 X − ,or (—OR 4 ) 2 and wherein R 4 is an alkyl group of from 1 to 4 carbon atoms and p is a whole integer of from 1 to 4 and with the proviso that when Y is (—OR 4 ) 2 or m is 1 or more to produce a compound of formula (I) wherein Z is —CH 2 OH, and when a product of formula (I) wherein Z is CH 2 OAc is desired the product of formula (I) wherein Z is CH 2 OH is reacted with an acetylating agent, and when a product of formula (I) wherein Z is CHO is desired the reactant of formula (III) wherein Y is (—OR 4 ) 2 or is employed and the resulting reaction product is deprotected to provide the aldehyde (—CHO) group.