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Process for the preparation of 2,4- or 2,5-pyridinedicarboxylic acid and copolymers derived therefrom
Process for the preparation of 2,4- or 2,5-pyridinedicarboxylic acid and copolymers derived therefrom
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机译:制备2,4-或2,5-吡啶二羧酸的方法和由其衍生的共聚物
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摘要
The present invention relates to processes for the formation of pyridinedicarboxylic acid (PDCA), in particular, 2,4-pyridinedicarboxylic acid (2,4-PDCA) and 2,5-pyridinedicarboxylic acid (2,5-PDCA), and mono- and diester derivatives thereof, from 3,4-dihydroxybenzoic acid, via a biocatalytic reaction using, for example, a protocatechuate dioxygenase such as protocatechuate 4,5-dioxygenase or protocatechuate 2,3-dioxygenase, and a nitrogen source. The invention also relates to copolymers that comprise the pyridinedicarboxylic acid monomers and derivatives thereof, processes for the formation of the copolymers and uses for the copolymers.
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