848641-97-4

Upstream product

• 139111-84-5 1-trimethylsilyl-4-(tributylstannino)buta-1,3-diyne 
• 341970-35-2 (N-tert-butoxycarbonyl-N-methyl)-2-iodobenzylamine 

Downstream Products

• 848641-94-1 (2-{4-[2-(1-hydroxy-5-trimethylsilanyl-penta-2,4-diynyl)-thiophen-3-yl]-buta-1,3-diynyl}-benzyl)-methyl-carbamic acid tert-butyl ester 
• 848642-02-4 methyl-(2-{4-[2-(5-trimethylsilanyl-penta-2,4-diynoyl)-thiophen-3-yl]-buta-1,3-diynyl}-benzyl)-carbamic acid tert-butyl ester 
• 848641-99-6 {2-[4-(2-formyl-thiophen-3-yl)-buta-1,3-diynyl]-benzyl}-methyl-carbamic acid tert-butyl ester 

Relevant academic research and scientific papers

Synthesis of indenothiophenone derivatives by cycloaromatization of non-conjugated thienyl tetraynes

Non-conjugated thienyl tetrayne derivatives 1-3 are prepared as novel building block for the construction of indenothiophenone derivatives. Oxidation of 1-3, followed by cycloaromatization of the corresponding ketone derivatives 13-15 proceeds smoothly to afford indenothiophenone derivatives 16-21 in good yields.