110744-44-0

Upstream product

• 258-17-3 12H-quinoxalino<2,3-b><1,4>benzothiazine 
• 98-88-4 benzoyl chloride 
• 137-07-5 2-amino-benzenethiol 
• 2213-63-0 2,3-dichloroquinoxaline 
• 98370-54-8 zinc 2-aminobenzenethiolate 

Relevant academic research and scientific papers

N-substituted quinoxalinobenzothiazine/iodonium salt systems as visible photoinitiators for hybrid polymerization

Sensitizers based on the 12-substituted 12H-quinoxalino-[2,3-b][1,4]- benzothiazine skeleton were synthesized and characterized using 1H NMR spectroscopy, mass spectrometry and elemental analysis. Their electrochemical and spectral properties,

A Convenient and Single-Step Synthesis of Substituted 12H-Quinoxalino-benzothiazines and -benzoxazines

Cyclocondensation of 2,3-dichloroquinoxaline (4) and the 2-aminothiophenols 1a-h or their zinc mercaptides 3a-h in the presence of alkaline dimethylformamide or in acidic medium afforded the corresponding 12H-quinoxalinobenzothiazines 7a-h in excellent yields.Similarly, the reaction of 4 with substituted 2-aminophenols 2 in the presence of base using dimethylformamide as solvent gave the 12H-quinoxalinobenzoxazines 7i-k.Acetyl derivatives of 7a-k were prepared.