2-(2',2'-Dihalovinyl)-cyclobutanones and 2-(2',2',2'-trihaloethy

Details 2-(2',2'-Dihalovinyl)-cyclobutanones and 2-(2',2',2'-trihaloethy 2-(2',2'-Dihalovinyl)-cyclobutanones and 2-(2',2',2'-trihaloethy

1979-03-16

1980-11-18

Trousof, Natalie

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

Organic compounds

Oxygen containing

2603436, C07C 4939

Patent

active

042345170

ABSTRACT:
Novel 2-(2',2'-dihalovinyl)-cyclobutan-1-ones and 2-(2',240 ,2'-trihaloethyl)-cyclobutan-1-ones of the formula ##STR1## are disclosed, wherein R.sub.1 represents --CH.dbd.CX.sub.2 or --CH.sub.2 --CX.sub.3, and X in each case represents chlorine or bromine, one of R.sub.2 and R.sub.3 represents methyl and the other represents hydrogen or methyl, or R.sub.2 and R.sub.3 together represent an alkylene group having 2 to 4 carbon atoms. The invention relates also to the production and the use of the said cyclobutanones.

REFERENCES:
patent: 4028418 (1977-06-01), van den Brink et al.
Elliott, M. et al., "Potent Pyrethroid Insecticides from Modified Cyclopropane Acids," Nature, vol. 244 (Aug. 17, 1973) p. 45617.
J. of the American Chemical Society, vol. 87, pp. 5257-5259 (1965).
Tetrahedron Letters, No. 1, pp. 135-139 (1966).
Heine, Hans Georg et al., Ger. Offen. No. 2,638,356, Mar. 2, 1978, (See Chemical Abstracts, vol. 88, #190, 209n (1978).

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