Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1980-06-23
1982-08-03
Fan, Jane T.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
204158HA, 204158R, 560 17, 560177, 562431, 562577, 549302, C07D30930, C07D30793
Patent
active
043426948
ABSTRACT:
Processes for producing a (1.alpha., 4.alpha., 5.alpha.)-6,6-dimethyl-4-halo-substituted-methyl-3-oxabicyclo[3.1.0]hexan- 2-one and its novel intermediates from known and inexpensive starting materials are described and exemplified. The halomethyl bicyclic lactone is a useful intermediate for the preparation of insecticidal cis-3-(2,2-dihaloethenyl)-2,2-dimethylcyclopropanecarboxylates or cis-3-(2-halo-2-trihalomethylethenyl)-2,2-dimethylcyclopropanecarboxylates .
REFERENCES:
patent: 4195033 (1980-03-01), Punja
patent: 4215050 (1980-07-01), Lantzsch
March, Advanced Organic Chemistry, 2nd Edition, pp. 687 to 689 and pp. 746 to 747.
Osborn et al. J. Am. Chem. Soc. 90, 5806 (1968).
Kondo Kiyoshi
Suda Minoru
Takashima Toshiyuki
Andersen Robert L.
Ertelt H. Robinson
Fan Jane T.
FMC Corporation
Kennedy Robert M.
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