203302-76-5

Upstream product

• 203302-73-2 2-chloro-1H-benzo[d]imidazol-5-amine 
• 88-65-3 2-bromobenzoic-acid 
• 5955-72-6 2-chloro-5-nitro-1H-benzo[d]imidazole 
• 4857-06-1 2-chloro-1H-benzoimidazole 

Relevant academic research and scientific papers

Pyridinium Betaines Derived from Thiazolo and Imidazoacridinones

Four betaines derived from imidazo[4,5-a], imidazo[5,4-a] and thiazolo[5,4-a]acridine have been prepared in a six step procedure starting from 2-chlorobenzimidazoles and benzothiazoles. The 1H and 133C nmr has been used to characteri