Production of butanetetracarboxylic acid derivatives useful as intermediates for e.g. plant protectants, dyes, complexing agents, polymers by cathodic reduction of maleate or fumarate esters and producing co-product at anode

摘要

Production of butanetetracarboxylic acid derivatives (I) by cathodic reduction of maleate or fumarate esters, optionally with inert substituents at the 2 and 3 positions, and producing a coproduct at the anode.