204455-44-7

Upstream product

• 80360-20-9 1-(phenylsulfonyl)indole-3-carbaldehyde 
• 120-72-9 indole 
• 124-38-9 carbon dioxide 
• 98-09-9 benzenesulfonyl chloride 
• 487-89-8 Indole-3-carboxaldehyde 

Downstream Products

• 114648-66-7 (1H-indol-3-yl)-(1H-indol-2-yl)-methane 
• 114648-67-8 (1H-indol-3-yl)-(1H-indol-2-yl)-methanone 
• 204455-45-8 (1-benzenesulfonyl-1H-indole-3-carbonyl)-(1H-indole-3-yl)-methanone 

Relevant academic research and scientific papers

Syntheses of 6-substituted indolo[3,2-b]carbazoles, including 6- formylindolo[3,2-b]carbazole, an extremely efficient ligand for the TCDD (Ah) receptor

A number of 6-substituted indolo[3,2-b]carbazoles have been synthesized using 2,3-diindolylmethane 5 as a crucial precursor. Most notably, 6- formylindolo[3,2-b]carbazole 3 has been synthesized, and thereby a previously assigned structure has been confirmed. 6-Formylindolo[3,2-b]carbazole 3 is an extremely efficient ligand for the TCDD (Ah) receptor. A much improved synthesis of 2,3-diindolylmethane 5 has also been developed.

Synthesis of 6-formylindolo[3,2-b]carbazole, an extremely potent ligand for the aryl hydrogen (Ah) receptor

Dichloroacetylation of 2,3-diindolylmethane followed by a tandem cyclization-hydrolysis reaction under acidic conditions gave the title compound.