Results 231 to 240 of about 18,744 (300)

Malonate and Plant Respiration

Nature, 1947
Since Quastel and Whetham's discovery in 19251, biochemists have come to regard the malonate ion as one of the very few specific enzyme inhibitors—as a competitive inhibitor of succinic dehydrogenase2 Malonate has therefore been widely used with animal tissue, in work designed to elucidate the Krebs cycle.
Vera F. Hanly, J. S. Turner
openaire   +3 more sources

Decomposition of Malonic Anhydrides

Journal of the American Chemical Society, 2012
Malonic anhydrides decompose at or below room temperature, to form a ketene and carbon dioxide. Rate constants for the thermal decomposition of malonic, methylmalonic, and dimethylmalonic anhydrides were measured by NMR spectroscopy at various temperatures, and activation parameters were evaluated from the temperature dependence of the rate constants ...
Marlon N. Manalo, Agnes Flach, Charles L. Perrin   +2 more
openaire   +3 more sources

Silver-Catalyzed Cascade 1,6-Addition/Cyclization of para-Quinone Methides with Propargyl Malonates: An Approach to Spiro[4.5]deca-6,9-dien-8-ones.

Journal of Organic Chemistry, 2017
An unprecedented silver-catalyzed cascade 1,6-addition/5-exo-dig cyclization reaction between para-quinone methides and propargyl malonates under mild reaction conditions has been described.
Zhenbo Yuan, Lina Liu, Rui Pan, Hequan Yao, Aijun Lin   +4 more
semanticscholar   +1 more source

Malonic aciduria and cardiomyopathy

Journal of Inherited Metabolic Disease, 1993
Malonyl-CoA decarboxylase (EC 4.1.1.9) deficiency (McKusick 248360) with malonic aciduria was first reported by Brown et al (1984) in a patient with short stature, repeated episodes of vomiting and mild developmental delay. A second patient with malonic aciduria and malonyl-CoA decarboxylase deficiency was reported by Haan et al (1986).
David R. Thorburn, K. Michaels, Stephen I. Goodman, V. Whitman, Rajinder Kaul, Reuben Matalon, J. Rodriguez-Novo   +6 more
openaire   +2 more sources

Synthesis of Benzofuranones via Malonates Desymmetrization: Yield Increase by the Portion-wise Addition of Quinones.

Chemistry, 2018
The organocatalyzed addition of several malonates to 1,4-benzoquinones affords benzofuranones bearing a quaternary stereocenter with good enantioselectivity.
A. Puglisi, Chiara Giustini, Angela Ricucci, Elisa Perotti, L. Massaro, D. Morra, Flavia Ciucci, Alessio Zucchet, Achille Antenucci, M. Moliterno, Simone Placidi, F. Sciubba, L. Galantini, R. Salvio, M. Bella   +14 more
semanticscholar   +1 more source

FeCl3-Mediated Domino Reaction of Benzoxazinones with Aroylmethylidene Malonates: Synthesis to Functionalized Pyrrolobenzoxazines.

Journal of Organic Chemistry, 2017
An efficient domino approach for the synthesis of pyrrolobenzoxazine derivatives is described. The FeCl3-promoted domino reaction between aroylmethylidene malonates and benzoxazinones has been successfully established to afford the title compounds in ...
Shweta Bisht, R. Peddinti
semanticscholar   +1 more source

Role of malonate in chickpeas

Phytochemistry, 2000
Analysis of the content and distribution of organic acids in chickpea plants (Cicer arietinum L.) showed that malonate was the most abundant acid in roots and nodules, whereas malate was the main acid in leaves and stems. The highest concentration of malonate in roots was in the apices.
Jun Li, Les Copeland
openaire   +3 more sources

Cu(II)-catalyzed coupling of aromatic C-H bonds with malonates.

Organic Letters, 2015
A new Cu(II)-catalyzed oxidative coupling of arenes with malonates has been developed using an amide-oxazoline directing group. The reaction proceeds via C(sp(2))-H activation and malonate coupling, followed by intramolecular oxidative N-C bond formation.
Hongli Wang, Ming Shang, Shang-Zheng Sun, Zeng-le Zhou, B. N. Laforteza, H. Dai, jin-quan yu   +6 more
semanticscholar   +1 more source

Organocatalyzed enantioselective Michael addition/cyclization cascade reaction of 3-isothiocyanato oxindoles with arylidene malonates.

Organic and biomolecular chemistry, 2016
An organocatalyzed Michael addition-cyclization reaction between 3-isothiocyanatooxindoles and arylidene malonates has been developed for the synthesis of highly functionalized 3,2'-pyrrolidinyl spirooxindole derivatives.
Raghunath Chowdhury, Mukesh Kumar, S. Ghosh   +2 more
semanticscholar   +1 more source

Unprecedented Hydrophobic Amplification in Noncovalent Organocatalysis “on Water”: Hydrophobic Chiral Squaramide Catalyzed Michael Addition of Malonates to Nitroalkenes

, 2015
In this study, water was demonstrated to be an exceptionally efficient reaction medium for the noncovalent, hydrogen-bonding-promoted enantioselective Michael addition of malonates to diverse nitroolefins using cinchona-based squaramide catalysts.
H. Bae, C. Song
semanticscholar   +1 more source