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US 4,230,891 AGranted
2-(2,2-Dihalovinyl)-3,3-dimethylcyclopropanecarbaldehyde dimethyl acetal
AssigneeShell Oil Company
InventorsPieter A. Verbrugge, Petrus A. Kramer, Johannes Van Berkel, Hendrik C. Kelderman
Life of this patent
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Abstract
New 2-(2,2-dihalovinyl)-3,3-dimethylcyclopropane derivatives of the formula ##STR1## wherein each Hal is a halogen atom and R is dimethoxyethyl, 2-acetyl-3-oxobutyl, 2-methoxycarbonylpropyl or 2-acetyl-2-hydroxy-3-oxobutyl, are useful chemical intermediates for the preparation of pesticidally active cyclopropanecarboxylates.
Claims3
A compound of the formula I ##STR5## wherein each Hal independently is selected from chlorine, bromine or fluorine.
3-(2,2-Dichlorovinyl)-2,2-dimethylcyclopropanecarbaldehyde dimethyl acetal.
Dependencies are inferred from the claim text.