Ether carboxylates containing three carboxylate groups

摘要

Ether carboxylates represented by the formula: <IMAGE> wherein R1 and R2 are individually selected from the group consisting of alkyl containing up to 20 carbon atoms, and M1, M2 and M3 are individually selected from the group consisting of alkyl containing up to about 4 carbon atoms, are useful as intermediates to prepare the corresponding acid or alkali metal, ammonium and alkanol amine salts, which are useful as chelants, sequestrants and detergent builders.