Document Type and Number:
Japanese Patent JPS544945
Kind Code:
B2
Abstract:
Sulphones useful for preparing polyenes have the formula IN WHICH THE SUPHONE GROUP REPLACES A HYDROGEN ATOM ON CARBON ATOM (A) OR (B), R represents alkyl, alkylaryl or aryl, optionally substituted, E represent free or protected oxygen or methylene, when E represents free or protected oxygen, Q represents hydrogen, optionally substituted alkyl or aromatic, when E represents methylene Q represents halogen, inorganic anion or NR1R2 where R1 and R2 represent alkyl, aryl or together with nitrogen form a heterocylic structure, or OR3 or SR3 where R3 represents alkyl, aryl or acyl, and A represents an optionally substituted hydrocarbon of 5n + 1 carbon atoms (n is 1-8), methyl optionally substituted by halogen, sulphide or sulphone, CH2OH (or ether or ester thereof), CHO (optionally protected), COOH (or an acid chloride, ester or nitrile thereof).
Application Number:
JP1279173A
Publication Date:
March 12, 1979
Filing Date:
January 31, 1973
Export Citation:
International Classes:
C07C315/04; C07C67/00; C07C313/00; C07C315/00; C07C317/00; C07C317/08; C07C317/10; C07C317/14; C07C317/18; C07C317/24; C07C401/00; C07C403/00; C07C403/22
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