Results 111 to 120 of about 11,118 (177)

Sucrose acetoacetates

Journal of Biochemical Toxicology, 1963
AbstractDiketen and sucrose react in dimethylformamide in the presence of triethylamine to form a mixture of sucrose acetoacetates. Excess diketen gives an almost fully substituted ester as a syrup. Sucrose esterified with three moles of diketen can be resolved into fractions containing principally the mono‐, di‐ and tri‐classes of acetoacetates ...
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Acetoacetate Decarboxylase. Preparation of the Enzyme^*

Biochemistry, 1966
Crystalline acetoacetate decarboxylase can be prepared from Clostridium acetobutylicum by the following steps: Preparation of an acetone powder from the bacteria, extraction of this powder at pH 5.9, precipitation of the enzyme at pH 3.8, a single fractionation with ammonium sulfate, and chromatography over diethylaminoethylcellulose, followed by ...
Zerner, Burt, Coutts, Stephen M., Lederer, Florence, Waters, Horace H., Westheimer, F. H.   +4 more
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Interference by thiels in acetoacetate determination

Analytical Biochemistry, 1965
Abstract Cysteine and reduced glutathione have been shown to interfere in the colorimetric determination of acetoacetate, using the method of Walker. This interference can be significantly reduced in the case of cysteine and eliminated in the case of reduced glutathione if mercuric chloride is added to the colorimetric reaction mixture.
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Efficient and catalyst-free synthesis of cellulose acetoacetates

Cellulose, 2018
H. Würfel, M. Kayser, T. Heinze
semanticscholar   +1 more source

Preparation of crystalline lithium acetoacetate

Analytical Biochemistry, 1962
Abstract A procedure for preparing crystalline lithium acetoacetate and the properties of the compound are described.
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Synthesis, characterization, and antimicrobial evaluation of a small library of ferrocene-containing acetoacetates and phenyl analogs: the discovery of a potent anticandidal agent

Molecular diversity, 2014
N. Radulović, M. Mladenović, Z. Stojanović-Radić, G. Bogdanović, D. Stevanović, Rastko D. Vukićević   +5 more
semanticscholar   +1 more source

Enzymes of acetoacetate formation

Biochemical and Biophysical Research Communications, 1961
I C, CALDWELL, G I, DRUMMOND
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Synthesis of Fatty Acetoacetates Under Microwave Irradiation Catalysed by Sulfamic Acid in a Solvent-Free System

, 2016
Andressa C. H. Weber, T. Batista, B. Gonçalves, Carolina R. L. Hack, Larissa M. Porciuncula, Tamara G M Treptow, C. D'Oca, D. Russowsky, M. G. D’Oca   +8 more
semanticscholar   +1 more source

Efficient Synthesis of Spiro[furan-3,3′-indoline] Derivatives via Reactions of Pyridinium Salts with Isatinylidene Acetoacetates

, 2013
Zhenming Liu, Jun Fang, Chaoguo Yan
semanticscholar   +1 more source

Cyclizations of unsaturated .bul.CR(COX)2 radicals. Manganese(III) acetate oxidative cyclizations of unsaturated acetoacetates and atom-transfer cyclizations of unsaturated haloacetoacetates give the same radicals

, 1991
D. Curran, T. Morgan, C. Schwartz, B. Snider, M. A. Dombroski   +4 more
semanticscholar   +1 more source