Alkyl .beta.-oxo-benzenepropanoates

Details Alkyl .beta.-oxo-benzenepropanoates Alkyl .beta.-oxo-benzenepropanoates

1984-10-12

1987-08-18

Daus, Donald G.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

544 92, 544322, 544329, 544332, 546156, 546308, 546309, 548163, 548185, 548192, 548233, 548236, 548245, 548246, 548251, 548257, 548337, 549 69, 560 47, C07C101447, C07D21522, C07D23922, C07D27746

Patent

active

046878572

ABSTRACT:
Novel alkyl .beta.-oxo-benzenepropanoates of the formula ##STR1## wherein X is in the 5-,6-,7- or 8-position and is selected from the group consisting of hydrogen, halogen, alkyl of 1 to 5 carbon atoms, alkoxy of 1 to 4 carbon atoms, CF.sub.3 --, CF.sub.3 S-- and CF.sub.3 O--, R.sub.1 ' is selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms, R.sub.2 ' is selected from the group consisting of hydrogen, thiazolyl, 4,5-dihydrothiazolyl, pyridinyl, oxazolyl, isoxazolyl, imidazolyl, pyrimidyl, tetrazolyl, thienyl, benzothiazolyl and phenyl optionally substituted with at least one member of the group consisting of halogen, alkoxy of 1 to 4 carbon atoms, hydroxy, phenyl, CF.sub.3 --, NO.sub.2 -- alkyl of 1 to 4 carbon atoms and alkyl of 1 to 4 carbon atoms substituted with amino, alkylamino or dialkylamino with alkyls of 1 to 3 carbon atoms or R.sub.1 ' and R.sub.2 ' taken together with the nitrogen atom to which they are attached form a member of the group consisting of thiazolyl, 4,5-dihydrothiazolyl, pyridinyl, oxazolyl, isoxazolyl, imidazolyl, pyrimidyl, tetrazolyl, thienyl and benzothiazolyl with the double bond being attached to the nitrogen atom, R is alkyl of 1 to 8 carbon atoms, R.sub.3 is selected from the group consisting of hydrogen, halogen and alkyl of 1 to 4 carbon atoms, R.sub.4 is hydrogen or halogen and R.sub.5 is halogen and a process for their preparation and a process for the preparation of compounds of the formula ##STR2## wherein X, R.sub.1 ', R.sub.2 ', R.sub.3, R.sub.4 and R.sub.5 have the above definition.

REFERENCES:
patent: 3798227 (1974-03-01), Lesher
patent: 4154756 (1979-05-01), Shepherd
patent: 4397856 (1983-08-01), Allais et al.
patent: 4486438 (1984-12-01), Clemmence et al.
Mahmoud et al, "Some Reactions with 4H-3,1-Benzoxazin-4-One and Some Studies on the Growth of Bacteria", Rev. Roum. Chim., 1979, 24(6), 849-858, (CA (92):158264y).
Clemence et al., Chemical Abstracts, vol. 105, 226393d (1986).

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