1,3,5-nonatriene derivatives, their preparation and their use

Details 1,3,5-nonatriene derivatives, their preparation and their use 1,3,5-nonatriene derivatives, their preparation and their use

1988-09-19

1989-10-24

Chan, Nicky

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549347, 549369, 568495, 568596, C07D31716, C07C 4721, C07C 43303

Patent

active

048763705

ABSTRACT:
1,3,5-Nonatriene derivatives of formula: ##STR1## in which R.sub.1 and R.sub.2, together with the carbon atom to which they are linked, form a carbonyl group, or each of R.sub.1 and R.sub.2 denotes alkoxy or R.sub.1 and R.sub.2 together form an alkylenedioxy radical, which may be made by reaction of a butadiene derivative of formula: ##STR2## in which R is alkyl or phenyl, with a butanal ketoacetal of 10 formula: ##STR3## followed by reaction of the product with a halomethyltriphenylphosphonium halide, are useful intermediates e.g. for the production of phytol.

REFERENCES:
patent: 3985813 (1926-10-01), Labovitz
patent: 4087465 (1978-05-01), Decor
patent: 4100201 (1978-07-01), Decor

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