115075-86-0

Upstream product

• 532-55-8 Benzoyl isothiocyanate 
• 2228-12-8 4-methyl-6-mercapto-2-phenylpyrimidine-5-carbonitrile 

Downstream Products

• 115073-27-3 6-acetyl-5-amino-4-methyl-2-phenylthieno[2,3-d]pyrimidine 
• 127246-26-8 3-acetoacetylamino-4-methyl-6-phenylisothiazolo<5,4-d>pyrimidine 
• 127246-09-7 bis<4-methyl-2-phenyl-5-(4-phenylimidazol-2-yl)pyrimidin-6-yl> disulphide 

Relevant academic research and scientific papers

3-Amino-1H-pyrazolopyrimidines and 3-Aminoisothiazolopyrimidines as Precursors of Tricyclic Heteroaromatic Systems Containing a Bridgehead Nitrogen Atom.

3-Amino-4-methyl-6-phenyl-1H-pyrazolopyrimidine (3a) and 3-amino-4-methyl-6-phenylisothiazolopyrimidine (9a) have been prepared.The former reacts with bromoacetone or 3-bromopentane-2,4-dione, to give tricyclic systems (1a) or (13) containing an extra pyrazole or pyrimidine ring, respectively; in each case the newly formed ring contains a bridgehead nitrogen atom, derived from N-2 of the starting material.With the same reagents, the latter undergoes an interesting ring-opening reaction, for which possible mechanisms are proposed.In contrast, 3-amino-1,2-benzisothiazole does not undergo ring fission under similar conditions, but gives rise to tricyclic compounds containing a bridgehead nitrogen atom.