194085-52-4

Upstream product

• 194085-44-4 (1,1-Dioxo-2,3-dihydro-1H-1λ⁶-thiophen-3-yl)-(2-iodo-phenyl)-amine 
• 615-43-0 2-iodophenylamine 
• 98-59-9 p-toluenesulfonyl chloride 
• 194085-45-5 3,3a,4,8b-Tetrahydro-1H-thieno[3,4-b]indole 2,2-dioxide 

Downstream Products

• 194085-53-5 4-(Toluene-4-sulfonyl)-3,4-dihydro-1H-thieno[3,4-b]indole 2,2-dioxide 
• 210908-49-9 7-Bromo-4-(toluene-4-sulfonyl)-3,4-dihydro-1H-thieno[3,4-b]indole 2,2-dioxide 

Relevant academic research and scientific papers

Preparation and Reactions of Benzofurano-, Indolo-, and Benzothieno-3-sulfolenes

Benzofurano-, N-tosylindolo-, and benzothieno-3-sulfolenes have been prepared efficiently via their dihydro analogues. These fused 3-sulfolenes serve as ideal precursors for the corresponding heteroaromatic o-quinodimethanes. Derivatives of these 3-sulfolenes bearing bromo or alkyl group substitution from which substituted heteroaromatic o-quinodimethanes are generated have also been synthesized.

Preparation of benzofurano-, benzothieno-, indolo-3-sulfolenes as precursors for heteroaromatic o-quinodimethanes

Efficient routes have been developed for the synthesis of benzothieno-3-sulfolene 15, benzofurano-3 sulfolene 16, and N-tosylindolo-3-sulfolene 18. These compounds are ideal precursors for the corresponding heteroaromatic o-quinodimethanes.