1448221-89-3

Upstream product

• 57848-46-1 4-bromo-2-fluorobenzaldehyde 
• 918350-11-5 4-bromo-2-(methylsulfanyl)benzaldehyde 

Downstream Products

• 1448221-93-9 4,4′-didocecyl-2,2′-dimethylthio-trans-stilbene 
• 1448221-98-4 6-bromo-2-(4-bromo-2-(methylthio)phenyl)benzo[b]thiophene 

Relevant academic research and scientific papers

Synthesis of 1,6-, 2,7-, 3,8-, and 4,9-isomers of didodecyl[1] benzothieno[3,2-b][1]benzothiophenes

The synthesis of 1,6-, 2,7-, 3,8-, and 4,9-isomers of dibromo- and didodecyl[1]benzothieno[3,2-b][1]benzothiophenes, via the stilbene pathway, is described. Starting from the synthesis of bromo-2-(methylthio)benzaldehydes, a series of functionalization, McMurry coupling, and finalising cyclization reactions were explored. The stereochemistry of the cyclization mechanism was investigated. Using this methodology didodecyl[1]benzothieno[3,2-b][1] benzothiophenes were formed in overall yields of 5-32%.