137729-69-2

Upstream product

• 137709-35-4 3,3-ethylenedioxy-7-(2-methoxyphenyl)-7,7-propylenedithio-1-heptyne 
• 18162-48-6 tert-butyldimethylsilyl chloride 
• 137709-29-6 6-hydroxy-3-oxo-1-trimethylsilyl-1-hexyne 
• 135-02-4 ortho-anisaldehyde 
• 137729-68-1 3,3-ethylenedioxy-7-(2-methoxyphenyl)-7,7-propylenedithio-1-trimethylsilyl-1-heptyne 
• 137709-31-0 4,4-ethylenedioxy-6-trimethylsilyl-5-hexynyl methanesulfonate 
• 137709-30-9 4-oxo-6-trimethylsilyl-5-hexynyl methanesulfonate 
• 24588-70-3 2-(2'-methoxyphenyl)-1,3-dithiane 

Downstream Products

• 137709-37-6 7-tert-butyldimethylsilyl-1,5-dioxo-1-(2-hydroxyphenyl)-6-heptyne 
• 137709-36-5 7-tert-butyldimethylsilyl-1,5-dioxo-1-(2-methoxyphenyl)-6-heptyne 

Relevant academic research and scientific papers

A novel oxidative intramolecular [4+2]cycloaddition of silylene-protected dihydroxystyrene derivatives leading to peri-hydroxy polyclic aromatic compounds: A synthesis of the ABCD ring system of fredericamycin A

Heating of the silylene protected dihydroxystyrene generated from the o-hydroxyacetophenone (3a) at 130-150°C for 15-48 h in a sealed tube gave intramolecular [4+2]cycloaddition products (5 and 6). The addition of chloranil to the reaction mixture brought