Sulfonic acid esters of 2,2,2-trichloroethylhydroxycyclobutanone

Details Sulfonic acid esters of 2,2,2-trichloroethylhydroxycyclobutanone Sulfonic acid esters of 2,2,2-trichloroethylhydroxycyclobutanone

1979-03-05

1981-03-10

Chan, Nicky

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260456P, 2603472, 2603475, 568348, 568374, 568381, 562506, 560124, 549 66, 549 79, C07C14368

Patent

active

042553512

ABSTRACT:
Compounds of the formulae Ia, Ib, IIa and IIb ##STR1## are described, wherein R represents alkyl, haloalkyl, benzyl, naphthyl or substituted or unsubstituted phenyl and one of R.sub.1 and R.sub.2 represents methyl and the other represents hydrogen or methyl, or R.sub.1 and R.sub.2 together represent alkylene of 2 or 3 carbon atoms. The compound of the formulae Ia, Ib, IIa and IIb are valuable intermediates for the manufacture of pyrethroid pesticides or precursors thereof.

REFERENCES:
patent: 3309403 (1967-03-01), Mador
patent: 3361811 (1968-01-01), Ihrman et al.
patent: 3423456 (1969-01-01), Mador et al.
patent: 3728372 (1973-04-01), Siddal
patent: 4128584 (1978-12-01), Martel et al.

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