Zobrazeno 1 - 10
of 31
pro vyhledávání: '"T. A. Zheldakova"'
Autor:
R. A. Zheldakova, A. V. Baranovski, T. A. Zheldakova, F. A. Lakhvich, Dmitry B. Rubinov, I. L. Rubinova
Publikováno v:
Russian Journal of General Chemistry. 82:122-130
Condensation of 2-propanoyl-, 2-butanoyl-, and 2-pentanoylcyclohexane-1,3-diones with aromatic aldehydes in the presence of secondary amines (diethylamine, pyrrolidine, morpholine, piperidine, and hexamethyleneimine) leads to the formation of the cor
Publikováno v:
Biochemistry (Moscow) Supplement Series B: Biomedical Chemistry. 3:71-76
A comparative kinetic study of the inhibition of urea hydrolysis by 9 substituted 1,5,6,7-tetrahydro-4H-benzimidazol-4-ones (BI I–IX) has been carried out. The inhibition had reversible competitive mode; the inhibition constants Ki, varied from 29
Publikováno v:
Russian Journal of Organic Chemistry. 44:1024-1030
2-(1-Alkoxyiminoalkyl)cyclohexane-1,3-diones undergo at heating Beckmann rearrangement to give 6,7-dihydro-1,3-benzoxazol-4(5H)-one derivatives that under treatment with amines in acid medium are converted into 1,5,6,7-tetrahydro-4H-benzimidazol-4-on
Publikováno v:
Russian Journal of Organic Chemistry. 44:432-439
N-Substituted 6-methyl-1,2,3,4-tetrahydropyridine-2,4-diones reacted with aliphatic carboxylic acid chlorides in the presence of pyridine or triethylamine to give the corresponding 4-O-acyl derivatives which underwent O,C-migration of the acyl group
Publikováno v:
Russian Journal of Organic Chemistry. 39:1772-1776
Acylation of 2H-thiopyran-3,5(4H,6H)-dione and 2-methyl-2H-thiopyran-3,5(4H,6H)-dione with acetyl chloride or propionyl chloride afforded the corresponding 4-acyl-2H-thiopyran-3,5(4H,6H)-diones. Oxidation of 4-acetyl-2H-thiopyran-3,5(4H,6H)-dione wit
Publikováno v:
Russian Journal of Organic Chemistry. 39:235-241
The reaction of 3-acetyl-6,6-dimethyltetrahydrothiopyran-2,4-dione with diazomethane furnishes a mixture of 3-acetyl-6,6-dimethyl-4-methoxy-5,6-dihydro-2H-thiopyran-2-one and 3-acetyl-6,6-dimethyl- 2-methoxy-5,6-dihydro-2H-thiopyran-4-one in 2:3 rati
Autor:
L. G. Lis, T. A. Zheldakova
Publikováno v:
Chemistry of Natural Compounds. 29:259-274
In this review, questions of the isolation, biosynthesis, and total chemical synthesis of new marine prostanoids — clavulones, halogenovulones, and punaglandins — are considered.
Publikováno v:
ChemInform. 22
Publikováno v:
ChemInform. 23
Publikováno v:
ChemInform. 24