1. General information S2 2. Synthesis of carboxylic acids S3 3. Stoichiometric experiments with benzoyl hypobromite II S4 4. Optimization and control reactions S8 5. Oxidant screen S9 6. General procedure for the visible light-promoted aryl decarboxylation S9 7. Scope of the visible light-promoted decarboxylation/radical trapping S10 8. Mechanistic studies S19 a) Stern-Volmer luminescence quen...

Melnykowycz and Johansson (1955) have shown that chlortetracycline suppresses amino acid decarboxylation by intestinal microorganisms in the rat, formation of lysine decarboxylase in Escherichia coli, and decarboxylation of tyrosine in Streptococcus faecalis R. These workers postulate that antibiotics reduce enterotoxemia and improve growth by inhibiting amine formation in the intestine. Since ...

Mitochondria isolated from Kalanchoë daigremontiana, a Crassulacean acid metabolism plant, decarboxylate added malate to pyruvate at rates of up to 100 micromoles per hour per milligram original chlorophyll in the presence of ADP. Omitting ADP reduces this rate by approximately 50%. Antimycin A inhibits malate decarboxylation and this inhibition could be relieved by addition of aspartate and al...

A mechanistic study of the gold-catalyzed protodecarboxylation is described. Each reaction step has been investigated experimentally and computationally. More specifically, the activation parameters for the decarboxylation step have been determined through kinetic studies. Further experimental studies on the hydrolysis of the arylgold intermediate have revealed that the protodeauration can beco...

Decarboxylation of fatty acids over non-noble metal catalysts without added hydrogen was studied. Ni/C catalysts were prepared and exhibited excellent activity and maintenance for decarboxylation. Thereafter, the effects of nickel loading, catalyst loading, temperature, and carbon number on the decarboxylation of fatty acids were investigated. The results indicate that the products of cracking ...

2.2 Significance of decarboxylation 2.2.1 Role in biosynthetic pathways In the biochemical milieu, decarboxylation is a ubiquitous step for transformation of amino acids into various other secondary metabolites using specific enzymes termed decarboxylases [Liu and Zhang (2006)]. More importantly, nature has also employed decarboxylation as a central tool for linking metabolic pathways like glyc...

6-Phosphogluconate dehydrogenase from Candida utilis catalyzes the oxidative decarboxylation of 2-deoxy-6-phosphogluconate. The 3-keto-2-deoxy-6-phosphogluconate, an intermediate of the reaction, is reduced to 2-deoxy-6-phosphogluconate and decarboxylated to I-deoxyribulose 5-phosphate when incubated with the enzyme and TPNH. The decarboxylation process does not occur in the absence of the redu...