Bis (ether) derivatives of tetrakis (2-hydroxyphenyl) ethene-Direct synthesis of (E)-and (Z)-bis (2-hydroxyphenyl)-bis (2-methoxyphenyl) ethene via the McMurry …
MK Chung, P Fancy, JM Stryker
文献索引：Chung, Mee-Kyung; Fancy, Paul; Stryker, Jeffrey M. Canadian Journal of Chemistry, 2006 , vol. 84, # 10 p. 1250 - 1253
The direct synthesis of sterically hindered, partially etherified derivatives of tetrakis (2- hydroxyphenyl) ethene is reported by using the McMurry reductive olefination reaction on a range of differentially substituted 2, 2'-dialkoxy benzophenone substrates. Three orthogonal protection strategies are demonstrated, incorporating β-silylethyl, 3-butenyl, and tert-butyl protecting groups, respectively, into the starting benzophenones. The latter proved most ...
