SULFONE COMPOUND AND CAROTENOID MANUFACTURING METHOD USING SAID COMPOUND
申请人:Sumitomo Chemical Company, Limited
公开号:EP2253613A1
公开(公告)日:2010-11-24
The present invention relates to a process for producing a sulfone compound of the following formula (3), characterized in that an allyl sulfone compound of the formula (1) and an allyl halide compound of the formula (2) are reacted in an organic solvent in the presence of an alkali metal hydroxide and a phase-transfer catalyst:
wherein A is CH2 or C=O; Ar is an aryl group optionally having 1 to 3 substitutents; and the wavy line means that the steric relation to the double bond which the wavy line is bound to is of E-form, Z-form or a mixture of E/Z;
wherein X is a halogen atom; and the wavy line means the same as defined above; and
wherein A, Ar and the wavy line mean the same as defined above.
The present invention also relates to a process for producing a carotenoid from the same sulfone compound.
esters from carotenoids, various carotenols or their succinates were reacted with bi‐ and trifunctional aromatic acids and alcohols. Several methods were tested, from which the Steglich esterification was found to give the best yields. Apocarotenoids showed higher reactivity in most of the reactions and served as model compounds for C40 carotenoids and their derivatives. The synthesized triesters can be