52823-29-7

Upstream product

• 233-02-3 naphtho[2,1-b]thiophene 
• 108-88-3 toluene 
• 90-11-9 1-Bromonaphthalene 
• 766-97-2 4-n-methylphenylacetylene 
• 72735-70-7 2-(4-methylphenyl)ethynylnaphthalene 

Relevant academic research and scientific papers

THIOPHENE RING-CONDENSED AROMATIC COMPOUND AND MANUFACTURING METHOD THEREFOR

PROBLEM TO BE SOLVED: To provide a method capable of condensing a thiophene ring on various aromatic compounds only with simple one process. SOLUTION: There is provided a manufacturing method of a thiophene ring-condensed aromatic compound having one or m

Thiophene-Fused π-Systems from Diarylacetylenes and Elemental Sulfur

A simple yet effective method for the formation of thiophene-fused π-systems is reported. When arylethynyl-substituted polycyclic arenes were heated in DMF in the presence of elemental sulfur, the corresponding thiophene-fused polycyclic arenes were obtained via cleavage of the ortho-C-H bond. Thus, arylethynylated naphthalenes, fluoranthenes, pyrenes, corannulenes, chrysenes, and benzo[c]naphtho[2,1-p]chrysenes were effectively converted into the corresponding thiophene-fused π-systems. Apart from polycyclic hydrocarbons, thiophene derivatives are also susceptible to this reaction. The practical utility of this reaction is demonstrated by preparations on the decagram scale, one-pot two-step reaction sequences, and multiple thiophene annulations.

THE ADDITION OF SIMPLE AROMATIC HYDROCARBONS TO CONDENSED AROMATIC THIOpheNES PROMOTED BY ALUMINUM CHLORIDE. PART I. NAPHTHOTHIOPHENE

Naphthothiophenes are the major products and at higher temperatures 2-arylnaphthothiophenes rwesult. 1-Arylnaphthothiophenes may be prepard by treatment of the dihydro-addition products with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone thus giving a new synthesis of 1- 2-arylnaphthothiophenes from the parent heterocycle.