Examples of 'hydrazones' in a sentence
Meaning of "hydrazones"
hydrazones (noun) - chemical compounds derived from the reaction between hydrazine and a ketone or aldehyde. They are often used in organic synthesis or as intermediates in chemical reactions
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- plural of hydrazone
How to use "hydrazones" in a sentence
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hydrazones
These hydrazones are brown in color in basic medium.
This thesis work focused on the fluoroalkylation of hydrazones.
The tosylhydrazine also forms hydrazones upon treatment with carbonyls.
Quinolyl hydrazones for the treatment of tuberculosis and related diseases.
The photochemical isomerization of the hydrazones has been carried out.
Pyridyl hydrazones for the treatment of tuberculosis and related diseases.
Barium manganate has also been used to oxidize hydrazones to diazo compounds.
Hydrazones of particular interest are the tautomer equivalents to the azo compounds of interest.
The first step should always be the synthesis of the hydrazones.
The hydrazones are then eluted and analyzed by HPLC using a UV detector.
Preparation of hydrazones.
Lower alkyl protected hydrazones can not be so commercialized, due to their inherent instability.
Two equivalents of the same hydrazone or of two different hydrazones may thus be reacted.
Hydrazones of the general formula VIII are conveniently obtained according to the following reaction procedure,.
Aldehydes and ketones and their derivatives such as oximes and hydrazones are satisfactory.
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Hydrazones IV are converted to fused indoles V as described in Scheme 1.
Appendage of the ketone isostere allows the formation of hydrazones and oxime conjugates.
The reduction of hydrazones to hydrazines present a clean way to produce 1,1-dialkylated hydrazines.
To this end, condensation of nitroalkenes with hydrazones was investigated.
Hydrazones are a class of organic compounds with the structure R 1R 2C=NNH 2.
This produces one of the beta hydrazones or beta oximes of Formula La.
The diazo compounds of formula 5 can tautomerize to the corresponding hydrazones.
The anhydrides afford six-membered hydrazones when treated with hydrazine.
These other toxicants include boric acid, pyrazolines, benzoylphenylureas such as diflubenzuron, and certain hydrazones.
The methods of preparing hydrazones are described in Sigal et al ., J. Am.
This invention relates to new therapeutic compositions containing N-substituted hydrazones as active ingredient.
Subsequently, this transformation was extended to the regioselective beta-trifluoromethylation of alpha, beta-unsaturated hydrazones.
Formaldehyde: sampling with DNPH; off line analysis of hydrazones by HPLC with UV detection 360 nm.
Buchwald and Hartwig have recently described a general and practical synthesis of N-arylated benzophenone hydrazones.
A process according to claim 23, wherein aldimines, ketimines and hydrazones are hydrogenated.
Briefly, the hydrazino-protein conjugate was reacted with 4-nitrobenzaldehyde to convert the hydrazino groups into hydrazones.
The invention also relates to 1-arylpyrazole hydrazones.
Another group of compounds ( I ) of interest are cyclic or acyclic hydrazones.
Where R1 is NHR ', the compounds are hydrazones.
