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Showing 1 to 10 of 10 for “"HYDRAZIDES"”.
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Preparation of organic hydrazides
… be used in an economical preparation of organic hydrazides. A synthesis of such hydrazides can be envisaged by the reduction of N-nitroamides. The problem is then to find a set of conditions under which no hydrogenolysis of the nitrogen-nitrogen bond occurs. This had been done with …
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Study of the preparation and chemiluminescent oxidation of certain cyclic hydrazides
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemistry, 1936
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The synthesis of novel indazole alkaloids with potential medicinal properties.
… novel approach in which four p-monoacylated acid hydrazides 7a-d were prepared for cyclisation into indazoles 8a-d. Reaction of phenylhydrazine with benzoyl chloride, 4-benzyloxy benzoyl chloride and 4-nitrobenzoyl chloride gave hydrazides 7a-c whilst reaction of and 2-ethylphenyl hydrazine with …
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Inhibition and inactivation of prostaglandin synthase-2 and horseradish peroxidase
… Therefore, the potential of aromatic hydrazides as mechanism-based peroxidase inhibitors was investigated here, again using HRP as a model peroxidase. The results suggest that benzhydrazide is a mechanism-based inhibitor of HRP. In general hydrazides were observed to be good inhibitors …
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Structural and Metabolic Studies of Glycosaminoglycans (Sulfatase, Hydrazine, Mucopolysaccharidosis)
… but that uronic acids were converted to hydrazides which were epimerized at C-5 during the hydrazinolysis reaction. Subsequently, it was found that uronic acid hydrazides could be oxidized to uronic acids by HONO or iodic acid (HIO(,3)) treatment. The chemical cleavage method was used to …
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Part I. Cleavage of Carbamates to Isocyanates: Selectivity, Extension to the Solid Support, and Synthesis of Multivalent Glycoforms With Inter-Saccharide Carbamate Linkages. Part II. Conjugation of Carbohydrate Moieties to a Rigid Aromatic Linker for the Study of Glycoside Internal Dynamics
… conjugation requires the condensation of these hydrazides with a glyoxamide functionalized protein.
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ΚΙΝΗΤΙΚΗ ΜΕΛΕΤΗ ΚΑΙ ΑΝΑΛΥΤΙΚΕΣ ΕΦΑΡΜΟΓΕΣ ΑΝΤΙΔΡΑΣΕΩΝ 2,4-ΔΙΝΙΤΡΟΦΘΟΡΟΒΕΝΖΟΛΙΟΥ ΜΕ ΧΡΗΣΗ ΕΚΛΕΚΤΙΚΟΥ ΗΛΕΚΤΡΟΔΙΟΥ ΦΘΟΡΙΟΥΧΩΝ
… STUDY OF THE REACTION OF DNFB WITH AMINES, HYDRAZIDES, HYDRAZINES AND AZIDE AND SOME DERIVATIVESOF PHARMACEUTICAL INTEREST. KINETIC-POTENTIOMETRIC METHODS ARE PROPOSED. STUDYOF MICELLAR CATALYSIS OF SLOW REACTIONS OF DNFB WITH VARIOUS AMINOCOMPOUNDS BYSURFACTANTS. KINETIC-POTENTIOMETRIC …
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Hemiaminals : a new chemotype for organocatalysis
… is reported. The corresponding oxazolidinone- hydrazides are reduced to their oxazolidinones via a modified E1cB elimination using ethyl bromomalonate and potassium carbonate in acetonitrile. The reactions gave high yields (76-96%) and ees (83-95%) with a good chemoselectivity profile.
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The synthesis and structural characterisation of novel 4- and 5- membered nitrogen heterocycles derived from azoacetates
… in the rearrangement of azoacetates to N-acyl hydrazides. The deacetylation reactions of azoacetates derived from L-threonine are also described. This work resulted in the synthesis of novel oxazolidinone and hydantoin species, also with phenylazo attachments. The final chapter describes the …
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Observing, Understanding, and Manipulating Biological Membranes
… with certain elements such as aminooxy and hydrazides which are also very rare in mammalian biology. This makes an aldehyde an excellent anchoring method for medical applications. We produced aldehyde tagged enhanced green fluorescent proteins (EGFP) and successfully incorporated them with …