Ketoenamine pyrethroid intermediates

Details Ketoenamine pyrethroid intermediates Ketoenamine pyrethroid intermediates

1981-10-28

1983-02-15

Helfin, Bernard

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

Organic compounds

Oxygen containing

568343, C07C 4540

Patent

active

043742750

ABSTRACT:
Novel pyrethroid intermediates ##STR1## wherein R.sup.1 and R.sup.2 each is alkyl are prepared by treating 2,2-dimethyl-3-(2-oxopropyl)cyclopropylacetaldehyde with a trialkylsilyldialkylamine. The above compounds can be treated with ozone to form 2,3-dimethyl-3-(2-oxopropyl)cyclopropanecarbaldehyde.

REFERENCES:
Mudd et al, Chem. Abs., vol. 80 (1974), 148747w.
Fieser et al, Reagents for Organic Synthesis, (1967), 775.
Isaacs, Reactive Intermediates in Organic Chemistry, (1974), 460-465.
Hilgetag/Weygand, Preparative Organic Chemistry, (1972), 1038-1039.

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