منابع مشابه
Metabolism of glycerolipids. 2. The enzymatic acylation of lysolecithin.
In the course of W-tracer studies on the biological synthesis of lecithin in lung tissue slices, the ratio of fatty acid activity to glycerol activity in lecithin was higher than in the triglyceride fraction. It was suggested that the observed isotope distributions could be due to turnover of the fatty acid portion of lecithin without a corresponding synthesis and breakdown of the remainder of ...
متن کاملFriedel–Crafts acylation of 2-methoxynaphthalene over zeolite catalysts
The Friedel–Crafts acylation of 2-methoxynaphthalene was carried out in the liquid-phase batch conditions using Hmordenite, H-beta and H-Y zeolite as catalysts. All the catalysts showed 35–40% conversion in the temperature range of 100–150◦C. 1-Acyl-2-methoxynaphthalene was formed as the primary product. When acetyl chloride was used as the acylating agent, a higher yield of 6-acyl-2-methoxynap...
متن کامل4 - ( Dimethy 1 amino ) pyridine as a Catalyst for Carbon Acylation . 2 . Control of Carbon vs . Oxygen Acylation in Benzofuranones
3-Phenylbenzofuranone (l), when deprotonated with sodium hydride and treated with excess chloroformates, generally affords products arising from oxygen acylation (enol carbonates 4). Such molecules, when treated with a catalytic quantity of 4-(dimethy1amino)pyridine (DMAP, 6) in halogenated solvents, rearrange to the carbon-acylated isomers 3. These migrations are proposed to involve the interm...
متن کاملAcylation of aspartate aminotransferase.
1. Acetylation of aspartate aminotransferase from pig heart inhibits completely the enzymic activity when the coenzyme is in the amino form (pyridoxamine phosphate) or when the coenzyme has been removed, but not when the coenzyme is in the aldehyde form (pyridoxal phosphate). 2. The group the acylation of which is responsible for the inhibition has been identified with the in-amino group of a l...
متن کاملKinetic study of 2 - butanol O - acylation and sec - butylamine N - acylation catalyzed by 1 Candida antarctica lipase B . 2 3
13 The aim of this work was to study the differential behavior shown by Candida antarctica 14 lipase B during the O-acylation and N-acylation of monofunctional alcohols and 15 monofunctional amines. To achieve this, 2-butanol and sec-butylamine were used as model 16 molecules. Yields, kinetics and enantioselectivity were studied for both reactions. Although a 17 steady-state ordered ternary com...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1977
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.25.3087