238098-84-5

Upstream product

• 237736-53-7 (E)-3-(1-ethoxyethoxy)-1-[4-tert-butyldimethylsiloxy-5-(1-ethoxyethoxy)-3-iodophenyl]-1-propene 
• 237736-55-9 Methanesulfonic acid 2-(1-ethoxy-ethoxy)-4-[(E)-3-(1-ethoxy-ethoxy)-propenyl]-6-iodo-phenyl ester 
• 263887-37-2 2-(1-Ethoxy-ethoxy)-4-[(E)-3-(1-ethoxy-ethoxy)-propenyl]-6-iodo-phenol 
• 237736-52-6 4-(1-ethoxyethyloxy)-3-methoxyphenylacetylene 
• 263887-34-9 (E)-3-(3-Hydroxy-5-iodo-4-methanesulfonyloxy-phenyl)-acrylic acid ethyl ester 
• 172515-98-9 (E)-3-(3-Iodo-4-methanesulfonyloxy-5-methoxy-phenyl)-acrylic acid ethyl ester 
• 237736-54-8 (E)-3-(5-hydroxy-3-iodo-4-mesyloxyphenyl)-2-propen-1-ol 
• 35615-21-5 3-methoxy-4-(ethoxyethylidene-oxy)-benzaldehyde 
• 121-33-5 vanillin 
• 50-00-0 formaldehyd 
• 238098-83-4 2-tert-butyldimethylsiloxy-3-(1-ethoxyethoxy)-5-(E)-[3-(1-ethoxyethoxy)-1-propenyl]phenylethynyl 4-(1-ethoxyethoxy)-3-methoxybenzene 

Downstream Products

• 179234-02-7 vibsanol 

Relevant academic research and scientific papers

An expeditious synthesis of vibsanol, a benzofuran-type lignan from Viburnum awabuki

Vibsanol (1), a benzofuran-type lignan isolated from the wood of Viburnum awabuki (Caprifoliaceae), was synthesized from the readily available vanillin; the key step is a tandem cyclization of o-tert- butyldimethylsiloxydiarylalkyne (2) with tetrabutylammonium fluoride and excess paraformaldehyde.