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US 3,940,424 AGranted
Lactones
AssigneeMonsanto Company
InventorKent P. Lannert
Life of this patent
Estimating the term…
Abstract
Compounds represented by the formula ##EQU1## and salts thereof represented by the formula ##EQU2## wherein Q is bromine, chlorine, --O-alkali metal or OH; R is hydrogen or an alkyl group containing from 1 to 20 carbon atoms; M is alkali metal; and Rx is ##EQU3## n being an integer from 4 to 10, or ##EQU4## Rz being hydrogen, alkyl phenyl alkyl, alkoxy alkyl, alkoxy phenyl, alkoxy phenyl alkyl or --COOX, X being R or M, are useful as intermediates for the preparation of sequestrants.
Claims4
A compound represented by the formula ##EQU42## wherein:
- Q is selected from the group consisting of bromine, chlorine, --O-alkali metal and --OH;
- R is selected from the group consisting of hydrogen and alkyl groups containing from 1 to 20 carbon atoms, provided, that when Q is --O-alkali metal, bromine or chlorine, R is an alkyl group;
- and,
- Rx is ##EQU43## Rz being hydrogen, alkyl, phenyl alkyl, alkoxy alkyl, alkoxy phenyl, alkoxy phenyl alkyl, and COOR;
- the total number of carbon atoms in Rx being from 2 to 22.
2 more elements
Dependencies are inferred from the claim text.