1088-44-4

Upstream product

• 120-75-2 2-Methylbenzothiazole 
• 70-11-1 α-bromoacetophenone 

Downstream Products

• 33446-07-0 1-phenyl-2-[2-(2,4,6-trinitro-benzylidene)-benzothiazol-3-yl]-ethanone 
• 1147-93-9 2-phenylpyrrolo<2,1-b>benzothiazole 
• 80089-89-0 2-(2-Phenyl-benzo[d]pyrrolo[2,1-b]thiazol-3-yl)-succinonitrile 
• 80108-11-8 2-{2-Methyl-2-[3-(2-oxo-2-phenyl-ethyl)-3H-benzothiazol-(2E)-ylidenemethyl]-benzothiazol-3-yl}-1-phenyl-ethanone 
• 110225-56-4 2,3-Bis-(3-nitro-phenyl)-9-thia-4a-azonia-fluorene; bromide 
• 33512-09-3 (7,9-dinitro-11H-benzo[4,5]thiazolo[3,2-b]isoquinolin-11-yl)-phenyl-methanone 
• 80089-92-5 1,4-Diphenyl-2-(2-phenyl-benzo[d]pyrrolo[2,1-b]thiazol-3-yl)-butane-1,4-dione 
• 80089-88-9 3-(3,6-Diphenyl-pyridazin-4-yl)-2-phenyl-benzo[d]pyrrolo[2,1-b]thiazole 
• 83996-37-6 2-(1-acetylacetonyl)-9-phenacyl-1,3-diphenyl-3a,9-dihydrocyclopenta<1,4>benzothiazine 
• 110209-25-1 C₂₈H₁₆NOS⁽¹⁺⁾*Br^(1-) 

Relevant academic research and scientific papers

Selective transformations of 3-phenacylbenzothiazolium cations to 2-aryl-4-formyl-2-hydroxy-2,3-dihydro-1,4-benzothiazines, 2-aryl-4-formyl-1,4-benzothiazines and 2-aroylbenzothiazoles

3-Phenacylbenzothiazolium cations (4) instantaneously react with 2percent aq. sodium hydroxide (1 equiv.) in methanol at ambient temperature to form 2-aryl-4-formyl-2-hydroxy-2,3-dihydro-1,4-benzothiazines (5) (65-80percent), which undergo dehydration wit

PYRROLOBENZOTHIAZOLE DERIVATIVES

A new method for obtaining pyrrolobenzothiazole derivatives, which can be used for the specific synthesis of polymethine dyes with predesignated properties, was developed.

2-Methylthiazolium Salts as 1,4-Dinucleophiles. Thiazolopyridinium Salts from Westphal Condensation

Condensation of 2-methylthiazolium salts with 1,2-dicarbonyls in the presence of base, yielded thiazolopyridinium derivatives.Results with different substrates are discussed.