Sulphones having a 1,5-dimethyl-hexa-1,5-dienylene group

Details Sulphones having a 1,5-dimethyl-hexa-1,5-dienylene group Sulphones having a 1,5-dimethyl-hexa-1,5-dienylene group

1973-02-01

1982-05-25

Garner, Vivian

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

585351, 585600, 260396K, 260400, 260402, 2604055, 260453R, 260464, 260465K, 2604659, 560 1, 560 8, 560129, 560237, 560254, 560259, 560260, 560262, 568 28, 568 29, 568 31, 568 32, 568 34, 568350, 568352, 568378, 568388, 568396, 568447, 568591, 568668, 568687, 568824, 568875, C07C17500

Patent

active

043318142

ABSTRACT:
Sulphones useful for preparing polyenes have the formula: ##STR1## where the sulphonyl group replaces a hydrogen atom on carbon atom (a) or (b), R represents alkyl, aralkyl or aryl, optionally substituted, A and Q represent an optionally substituted hydrocarbon of 5n+1 carbon atoms (n is 1-5), methyl, optionally substituted by halogen, sulphide or sulphone, CH.sub.2 OH (or an ether or ester thereof), CHO (optionally protected), COOH (or an acid chloride, ester or nitrile thereof), with the proviso that when A represents a 2-(2,6,6-trimethylcyclohex-1-enyl) ethenyl radical, Q cannot represent --COOH or an ester thereof.

REFERENCES:
patent: 3075003 (1963-01-01), Blumenthal
patent: 3665040 (1972-05-01), Ruegg et al.

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