Examples of 'ureas' in a sentence
Meaning of "ureas"
urea (noun): A chemical compound commonly found in urine and used in fertilizers, plastics, and skincare products
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- plural of urea
How to use "ureas" in a sentence
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ureas
Mixtures of aryl ureas are also optionally employed.
Ureas can be prepared using standard methods.
Bisnaphthalene ureas are known to the literature.
Ureas and their use as herbicides.
Color inhibition is achieved through use of substituted ureas.
Asymmetric ureas and medical uses thereof.
Particularly preferred are tetraalkyl ureas like tetrabutyl urea.
The alkyl ureas of aromatic isocyanates are also gelators.
The present invention relates to new aminosulfonyl ureas.
Substituted ureas or imidazoles may also be useful as curatives.
The mechanical properties are comparable to those of polyurethane ureas.
The ureas are prepared by reacting an isocyanate with an amine.
Formation of carbodiimides from substituted ureas.
Aryl ureas as kinase inhibitors.
The isocyanate derivatives of special concern are carbamates and ureas.
See also
The resulting four isomeric ureas were not separable in this case.
General operating method for the preparation of the ureas.
This aniline is the key intermediate to ureas with different degrees of substitution.
The skilled person knows suitable formulations of sulfonyl ureas.
Ureas and urea derivatives are preferably used in the form of aqueous solutions.
Solid carbamoyl chlorides and solid ureas are not present.
This reaction is accomplished by heating a mixture of the alcohol and ureas.
The alkyl ureas of aromatic isocyanates are also considered to be particularly suitable gelation agents.
Isocyanates or polyisocyanates will react with amines to form ureas.
The substituted ureas such as linuron and diuron have no effect on this weed.
Preferred are substituted ureas.
Methylene ureas combine urea with carbon and hydrogen and forms chains of molecules.
The skilled person knows suitable pharmaceutically acceptable salts of sulfonyl ureas.
This procedure causes rapid condensation of the methylol ureas to a solid network polymer.
All or a portion of the sweetness or bitterness can be inhibited by these aryl ureas.
The cyclic ureas thus obtained can be characterised by mass spectrometry and purified by chromatography.
The sulfonyl urea may be selected from sulfonyl ureas described herein.
These modified ureas may be produced by combining urea with sulphamic acid and water.
The process is particularly suitable for the synthesis of ureas and of their polymers.
Oligomethylene ureas having different molecular chain lengths decompose at different rates in the soil.
This invention provides a novel process for preparing herbicidal and insecticidal ureas.
Preparation of the above mentioned ureas and thioureas proceeds by methods known in the art.
The material may optionally include a curing agent accelerator such as any modified ureas.
This invention relates to a process for producing cyclic ureas of imidazolidinic structure and application thereof.
Benzoylphenyl ureas have provided consistently good results when applied properly against certain susceptible pests.
Acylation Pyrimidine formation by reaction of ureas with Malonates.
Ureas having the formula III are either commercially available or described in the literature.
The mixture of intermediate ureas is then separated from excess PAC in the reaction mixture.
Ureas of the general formula V are commercially available.
Preparation of Ureas.
More recently, ureas have been used as grease thickeners.
Process for manufacturing bis-silyl ureas.
Detecting individual ureas within the sample ;.
Scheme 6 elaborates further functionalization of ureas.
Monosubstituted ureas react to give exclusively the 2-substituted iminothiazolidinones.
