THE catalytic effect of small amounts of pyridine in the reaction between thionyl chloride and carboxylic acids is well known; Carré and Libermann 1 have shown further that it is of great ...

In this study, we report a mild and convenient stereoretentive decarboxylative amidation of α,β-unsaturated carboxylic acids with easily procurable 1,4,2-dioxazol-5-ones, providing a practical ...

A uric acid test measures the amount of a waste product called uric acid (urate) in your blood or urine. Uric acid is a byproduct of the breakdown of chemicals called purines found in foods and drinks ...

Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing ...

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In this article, we synthesize of a novel starch-based superabsorbent hydrogel via graft copolymerization of mixtures of acrylic acid ... of nitrile polymerization in the early stages of ...

We found that hydrazinophthalazine can easily react with carboxylic acids derivatives, using reaction agents such as EDC and HOBT. Using our experimental settings, the 4-phenylsemicarbazide reaction, ...

The content of tartaric acid in the finished wine not to be less than 1,500 ppm weight by volume. n/a (d) Grape juice (d) Acidity regulator (d) Good Manufacturing Practice n/a (e) Ice cream mix; Ice ...