XiRelevant articles and documents
All total 9 Articles be found
All total 9 Articles be found-
Pavlov et al.
, (1968)
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A method for the preparation of nicotinic acid and its amide from 2-methyl-5-ethylpyridine
Suvorov,Bakirova,Serazetdinova,Ishaeva
, p. 894 - 896 (1993)
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ANODIC OXIDATION OF METHYL-SUBSTITUTED NITROGEN-CONTAINING HETEROCYCLIC COMPOUNDS AT THE ACTIVATED NICKEL OXIDE ELECTRODE
Feldman, D.,Chervenka, M.,Stokh, E.,Shimanska, M.,Khaber, E.
, p. 80 - 85 (1995)
Methyl derivatives of several nitrogen-containing heterocyclic compounds were converted into the corresponding carboxylic acids by means of electrochemical oxidation at the nickel oxohydroxide anode in alkaline medium, using a nondiaphragm electrolyzer.The oxidation of 2,5-dimethylpyrazine was used to demonstrate the effect of adding chromium (III) and cobalt (II) compounds to the reaction mixture.The composition and electronic state of the anode surface were studied using x-ray diffraction and XPS methods.
Electron transport in Ru and Os polybenzimidazole-based metallopolymers
Cameron, Colin G.,Pittman, Timothy J.,Pickup, Peter G.
, p. 8838 - 8844 (2001)
A series of conjugated polymer-redox polymer hybrids based on the complexation of poly-(bibenzimidazoles) with bis-(2,2a?2-bipyridyl)Ru2+ and bis-(2,2a?2-bipyridyl)Os2+ has been prepared to investigate the effects of electronic commu
On the formation of niacin (vitamin B3) and pyridine carboxylic acids in interstellar model ices
McMurtry, Brandon M.,Turner, Andrew M.,Saito, Sean E.J.,Kaiser, Ralf I.
, p. 173 - 184 (2016)
The formation of pyridine carboxylic acids in interstellar ice grains was simulated by electron exposures of binary pyridine (C5H5N)-carbon dioxide (CO2) ice mixtures at 10 K under contamination-free ultrahigh vacuum condi
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Szafran,Brzezinski
, p. 1951,1963, 1965 (1970)
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Borkhi
, (1970)
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Kato
, p. 636,637 (1961)
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Biocatalytic conversion of lignin to aromatic dicarboxylic acids in Rhodococcus jostii RHA1 by re-routing aromatic degradation pathways
Mycroft, Zoe,Gomis, Maria,Mines, Paul,Law, Paul,Bugg, Timothy D.H.
, p. 4974 - 4979 (2015)
The heteropolymer lignin represents an untapped resource for production of renewable aromatic chemicals, if efficient depolymerisation methods can be developed. In this work, the metabolic pathways in Rhodococcus jostii RHA1 for degradation of aromatic lignin breakdown products are re-routed, in order to generate an aromatic dicarboxylic acid product that could be used for bioplastic synthesis. Protocatechuic acid is normally metabolised via ortho-cleavage to the β-keto-adipate pathway. Insertion of recombinant genes for protocatechuate 4,5-dioxygenase or protocatechuate 2,3-dioxygenase into R. jostii RHA1, followed by ammonia cyclisation of the extradiol cleavage products, generates pyridine 2,4-dicarboxylic acid or pyridine 2,5-dicarboxylic acid bioproducts in yields of 80-125 mg L-1 when grown on minimal media containing 1% wheat straw lignocelluloses.
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Garrett,Smythe
, (1903)
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PROCESS FOR THE PREPARATION OF 2,4- OR 2,5-PYRIDINEDICARBOXYLIC ACID AND COPOLYMERS DERIVED THEREFROM
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Paragraph 0191-0192; 0196; 0197, (2018/06/09)
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.
