113340-26-4

Upstream product

• 113340-22-0 1,1,4,4-tetramethyl-1H,4H-thieno<3,4-c>thiophene-6-dihydro-3-one 
• 76842-78-9 1,1,4,4-Tetramethyl-1H,4H-thieno<3,4-c>thiophene 
• 113340-21-9 (3S,6S)-3,6-Dibromo-1,1,4,4-tetramethyl-4,6-dihydro-1H,3H-thieno[3,4-c]thiophene 

Relevant academic research and scientific papers

THE SYNTHESIS OF NEW 3,4-DIMETHYLENETHIOLANE DERIVATIVES

A convenient synthesis of the two new 3,4-dialkylidenethiolane derivatives 11 and 13, starting with the readily available condensed heterocycle 6 is described.Besides their synthetic utility as 1,3-dienes, these compounds are also of interest for the preparation of tetramethyleneethane diradical precursors.