A process for making 2,7-dimethyl-2,4,6-octatrien-1,8-dial starting form an allylic halide is described. The process steps include aldehyde protection, conversion to a sulfide, oxidation to an allylic sulfone followed by a Ramberg-Backlund reaction and hydrolysis.
CROSS REFERENCE TO RELATED APPLICATIONS AND CLAIM FOR FOREIGN PRIORITY
This application is a division of U.S. patent application Ser. No. 09/873,672, filed Jun. 4, 2001, now U.S. Pat. No. 6,326,519, as a division of U.S. Ser. No. 09/435,336, filed Nov. 5, 1999, now U.S. Pat. No. 6,297,416, and claims priority from KR Patent Application Number 98-47549, filed Nov. 6, 1998. The entire disclosures of the prior applications are incorporated herein by reference.
