摘要:
Classes of urea functional compounds and compositions containing the same are disclosed which are particularly suitable for use as a wet adhesion promoters in coatings, especially in aqueous emulsion systems used to make latex paints. Compositions containing the same, as well as additional uses thereof are also disclosed.
摘要:
Allophanate derivatives of the formula ##STR1## in which R.sup.1 and R.sup.2 can be identical or different and represent an aliphatic, cycloaliphatic, araliphatic or aromatic radical each of which is optionally monosubstituted or polysubstituted by identical or different substituents andR.sup.3 represents the radical --XR.sup.4 or --NR.sup.5 R.sup.6,whereinR.sup.4 represents alkyl, alkoxyalkyl, or aryl which is optionally monosubstituted or polysubstituted by identical or different substituents, X represents oxygen or sulphur andR.sup.5 and R.sup.6 are identical or different and represent hydrogen, alkyl, or aryl which is optionally monosubstituted or polysubstituted by identical or different substituents, orR.sup.5 and R.sup.6, together with the nitrogen atom on which they stand, form a saturated heterocyclic radical which is optionally monosubstituted or polysubstituted by identical or different substituents and can be interrupted by further hetero-atoms,which possess fungicidal activity.
摘要:
N-Cycloalkyl-N'-substituted-N'-acyl-ureas of the formula ##STR1## in which R.sup.1 is cycloalkyl,R.sup.2 is cycloalkyl or optionally substituted phenyl, andR.sup.3 is cycloalkyl or substituted phenyl,which are active against plant bacteria.
摘要:
The invention relates to compounds of the formula I in which the radicals are defined as specified, and also to their physiologically tolerated salts. The compounds are suitable, for example, as medicaments for preventing and treating type 2 diabetes.
摘要:
A heat-developable color light-sensitive material comprising a support having thereon at least: (1) a light-sensitive silver-halide, (2) a coupler capable of coupling with an oxidation product of a developing agent, (3) a hydrophilic binder, and (4) at least one compound represented by the following general formula (Z): ##STR1## the substituents A, R.sub.1, R.sub.2 R.sub.3, R.sub.4, X and R.sub.5 are defined herein.The heat-developable color light-sensitive material containing the developing agent or the precursor thereof represented by the general formula (Z) which is excellent in stability during storage, silver developing property and coupling property has good preservability and can provide color images having a high S/N ratio and a high image density.
摘要:
A process for the production of compounds of the general formula: ##STR1## and compounds of that general formula, in which A represents hydrogen or an R.sub.1 -- X group (in which X represents --CO or --SO.sub.2 and R.sub.1 represents an optionally substituted alkyl, cycloalkyl, aralkyl, alkoxy, aryl, aryloxy, etheroxy, aliphatic or aromatic group), R.sub.2 represents a hydrogen atom or an optionally substituted alkyl, cycloalkyl, aralkyl, or aryl group, and R.sub.3 represents a hydrogen atom or an alkyl group derived from a secondary or tertiary alcohol, particularly a tertio-butyl group, with the restriction that, when R.sub.2 represents hydrogen, R.sub.3 represents the said alkyl group and that, when R.sub.3 represents hydrogen, R.sub.2 represents the said optionally substituted alkyl, cycloalkyl, aralkyl, or aryl group, the said process comprising reacting a cyanamide of the formula: ##STR2## (in which A and R.sub.2 have the meanings given above) with a compound e.g. a tertiary or secondary alcohol adapted to form readily a carbo cation (R.sub.3 .sup.+) in the presence of a catalyst e.g. sulphuric acid or a Lewis acid.