XLII.—The esterification of r-mandelic acid by menthol and borneol
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منابع مشابه
A Molecular Interpretation on the Different Penetration Enhancement Effect of Borneol and Menthol towards 5-Fluorouracil
Borneol and menthol are terpenes that are widely used as penetration enhancers in transdermal drug delivery. To explore their penetration-enhancement effects on hydrophilic drugs, 5-fluorouracil (5-FU) was selected as a model drug. An approach that combined in vitro permeation studies and coarse-grained molecular dynamics was used to investigate their penetration-enhancement effect on 5-FU. The...
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Immobilized cells of a recombinant Escherichia coli expressing nitrilase from Pseudomonas putida were used to catalyze the hydrolysis of mandelonitrile (2hydroxy-2-phenylacetonitrile) to (R)-(-)-mandelic acid. The cells had been immobilized by entrapment in an alginate matrix. Conditions for the hydrolysis reaction were optimized in shake flasks and in a packed bed reactor. In shake flasks the ...
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Hypoxia has been regarded as one of the many factors stimulating augmented catecholamine biosynthesis (Vogt, 1960). Plasma levels of epinephrine and norepinephrine were found to be increased in newborns with the respiratory distress syndrome or placental insufficiency (Cheek, Malinek, and Fraillon, 1963). Infants with severe heart failure eliminate in the urine twice as much metanephrine, norme...
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Methyl acetate is produced through catalytic esterification of acetic acid with methanol. Catalytic acceleration is induced by sulfuric acid or ion exchange resins respectively. Acceptable product yield is obtained by reactive distillation. Separation and isolation of methyl acetate has to overcome two azeotropes (methyl acetate – water and methyl acetate methanol). Scope of this project has be...
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ژورنال
عنوان ژورنال: J. Chem. Soc., Trans.
سال: 1904
ISSN: 0368-1645
DOI: 10.1039/ct9048500378