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US 4,562,282 AGranted
4-Methyl-3-formyl-pentanoic acid esters
AssigneeRoussel Uclaf
InventorsJacques Martel, Jean Tessier, Jean-Pierre Demoute
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Abstract
Novel 4-methyl-3-formyl-pentanoic acid derivative of the formula ##STR1## wherein Hal is a halogen, R.sub.1 is alkyl of 1 to 12 carbon atoms and A and B are .dbd.O or A is halogen and B is --OR.sub.2 and R.sub.2 is alkyl of 1 to 12 carbon atoms, their preparation and their use as intermediates.
Claims1
A compound of the formula ##STR14## wherein Hal is a halogen and R.sub.1 and R.sub.2 are individually alkyl of 1 to 12 carbon atoms.
Dependencies are inferred from the claim text.