XLIII.—Condensation of benzil with ethylic acetoacetate
نویسندگان
چکیده
منابع مشابه
Benzil bis(ketazine)
THE TITLE COMPOUND (SYSTEMATIC NAME 1,1',2,2'-tetra-phenyl-2,2'-azinodiethanone), C(28)H(20)N(2)O(2), was obtained by the reaction of benzil monohydrazone with chromium(III) nitrate. The dibenzyl-idene hydrazine unit is nearly planar (r.m.s. deviation = 0.073 Å) and the two benzoyl units are oriented almost perpendicular to it [dihedral angle = 87.81 (2), 87.81 (2)°]. The mol-ecules are linked ...
متن کاملThe mechanism of acetoacetate synthesis.
The observation of a coenayme A (CoA)-catalyzed acetoacetate synthesis from acetate and adenosinetriphosphate in pigeon liver extracts (1) grouped this reaction with the larger family of acetylation reactions. Furthermore it furnished partial confirmation of an earlier calculation (2) showing that 16,000 calories are required for the condensation of two acetates to acetoacetate. Thus, one energ...
متن کاملAcetoacetate Formation in Liver
In 1944, Weinhouse et al. (1) reported that the incubation of carboxyllabeled octanoate with rat liver slices yielded acetoacetate in which the carboxyl and carbonyl carbons were equally labeled. Random condensation of 2-carbon units resulting from ,8 oxidation was therefore offered by these workers as a possible mechanism for the formation of acetoacetic acid from octanoate. The conversion of ...
متن کاملAcetoacetate Metabolism in Rat Brain
1. Data are provided that indicate that the rat brain acetoacetyl-CoA deacylase is almost exclusively mitochondrial. Developmental studies show that this enzyme more than doubles its activity during suckling (0-21 days) and then maintains this activity in adults (approx. 1.1 units/g wet wt.). 2. Kinetic studies (on the acetoacetyl-CoA deacylase) in a purified brain mitochondrial preparation giv...
متن کاملMultiple conformations of benzil in resorcinarene-based supramolecular host matrixes.
Six supramolecular complexes incorporating benzil as a guest, CMCR*bipy*benzil (alpha) 1 (CMCR = C-methylcalix[4]resorcinarene), CMCR*bipy*benzil (beta) 2, CMCR*2bpe*benzil*ethanol 3 (bpe = trans-1,4-bis(pyridyl)ethylene), CMCR*2bpe*benzil*2H2O 4, CMCR.2bpeh*benzil*ethanol 5 (bpeh = bis-(1-pyridin-4-yl-ethylidene)-hydrazine), and CECR*2bpe.benzil 6 (CECR = C-ethylcalix[4]resorcinarene), have be...
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ژورنال
عنوان ژورنال: J. Chem. Soc., Trans.
سال: 1896
ISSN: 0368-1645
DOI: 10.1039/ct8966900736