208400-08-2

Upstream product

• 182008-78-2 3-(2-(4-((tert-butyldiphenylsilyl)oxy)butyl)-1,3-dithian-2-yl)propan-1-ol 
• 182008-96-4 3-(2-(4-((tert-butyldiphenylsilyl)oxy)butyl)-1,3-dithian-2-yl)propanal 
• 182008-77-1 tert-butyldiphenyl(4-(2-(3-((tetrahydro-2H-pyran-2-yl)oxy)propyl)-1,3-dithian-2-yl)butoxy)silane 
• 139230-31-2 2-(3-(1,3-dithian-2-yl)propoxy)tetrahydro-2H-pyran 
• 182008-79-3 tert-Butyl-{4-[2-(4,4-dibromo-but-3-enyl)-[1,3]dithian-2-yl]-butoxy}-diphenyl-silane 

Downstream Products

• 182008-80-6 10-(tert-Butyl-diphenyl-silanyloxy)-6-oxo-dec-2-ynoic acid methyl ester 

Relevant academic research and scientific papers

Highly stereoselective syntheses of spiroacetal enol ethers, (E)- and (Z)-methoxycarbonylmethylene-1,6-dioxaspiro[4,5]decanes

(E)- and (Z)-2-methoxycarbonylmethylene-1,6-dioxaspiro[4,5]decanes have been synthesized from an acyclic keto alcohol possessing an alkynoate part via intramolecular conjugate addition. Under thermodynamically controlled conditions using t-BuOK in THF, the (E)-isomer could be obtained in 52:1 ratio. When a catalytic amount of Pd(OAc)2 was used in benzene, the (Z)- isomer could be obtained in 95:1 ratio.