Process for producing phenoxyalkene derivative

Details Process for producing phenoxyalkene derivative Process for producing phenoxyalkene derivative

1979-10-12

1981-05-12

Rotman, Alan L.

Harness for working animal

546286, 546287, 546288, 546297, 546301, 546302, 560 61, 562471, 260465D, 260465F, 260455R, C07C 6976, C07C 69767, C07C 5948

Patent

active

042673178

ABSTRACT:
A phenoxyalkene derivative having the formula ##STR1## wherein R represents a hydrogen atom, ##STR2## and Y and Z are the same or different and respectively represent a hydrogen atom, trifluoromethyl group, a halogen atom, a lower alkyl group, nitro group or cyano group; R.sub.1 represents a hydrogen atom or a lower alkyl group and R.sub.2 represents carboxyl, hydroxymethyl, allyloxycarbonyl, a lower alkoxycarbonyl, a lower haloalkoxycarbonyl, a S-lower alkylthiocarbonyl, carbamoyl, a N-lower alkylcarbamoyl or a N-phenylcarbamoyl group is produced by reacting a phenol compound having the formula ##STR3## with a dihalogen compound having the formula ##STR4## wherein R, R.sub.1 and R.sub.2 are defined above and X.sub.1 represents a halogen atom and X.sub.2 and X.sub.3 are different and respectively represent a hydrogen atom or a halogen atom, by a simultaneous reaction of an etherification and an unsaturated double bond formation, in the presence of a dehydrogenhalide agent and a polar solvent or a combination of a nonpolar solvent and a quaternary ammonium salt or a quaternary phosphonium salt.

REFERENCES:
patent: 3972887 (1976-08-01), Freedman
McKillop et al., Chemical Abstracts, vol. 81, No. 23, 151,696e, Dec. 9, 1974.
Buehler et al., Survey of Organic Synthesis, Wiley-Interscience Pub., pp. 75-77, (1970).

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