Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 16582-60-8, Name is 4,6-Dibromobenzo[d]thiazol-2-amine, Formula: C7H4Br2N2S.
The invention relates to a process for the manufacture of 1:1 metal complexes of azines of the formula STR1 wherein R1 is a hydrogen atom, an alkyl or aryl group, R2 is an isocyclic or heterocyclic radical containing a hydroxyl or mercapto group adjacent to the azomethine group, Y is the radical of a compound which contains active methylene groups, or of an aryl or heteroaryl amine, and the ring A can contain substituents that do not confer solubility in water, which process comprises reacting a compound of the formula STR2 wherein R3 is a hydrogen atom or an alkyl radical, R4 is an alkyl, aryl or heteroaryl radical or the radical of the formula STR3 or R3 and R4, together with the nitrogen atom to which they are attached, form a 5- or 6-membered heterocyclic ring, and Y has the given meaning, with a hydrazone of the formula STR4 in the presence of a transition metal donor and in a polar organic solvent, at temperatures above 100 C. Compared with pigments obtained by the prior art methods, the pigments of this invention have greater purity and better fastness properties, especially better fastness to migration, overspraying, light, atmospheric influences and heat.
The invention relates to a process for the manufacture of 1:1 metal complexes of azines of the formula STR1 wherein R1 is a hydrogen atom, an alkyl or aryl group, R2 is an isocyclic or heterocyclic radical containing a hydroxyl or mercapto group adjacent to the azomethine group, Y is the radical of a compound which contains active methylene groups, or of an aryl or heteroaryl amine, and the ring A can contain substituents that do not confer solubility in water, which process comprises reacting a compound of the formula STR2 wherein R3 is a hydrogen atom or an alkyl radical, R4 is an alkyl, aryl or heteroaryl radical or the radical of the formula STR3 or R3 and R4, together with the nitrogen atom to which they are attached, form a 5- or 6-membered heterocyclic ring, and Y has the given meaning, with a hydrazone of the formula STR4 in the presence of a transition metal donor and in a polar organic solvent, at temperatures above 100 C. Compared with pigments obtained by the prior art methods, the pigments of this invention have greater purity and better fastness properties, especially better fastness to migration, overspraying, light, atmospheric influences and heat.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Formula: C7H4Br2N2S. In my other articles, you can also check out more blogs about 16582-60-8
Reference£º
Thiazole | C3H5064NS – PubChem,
Thiazole | chemical compound | Britannica