Synthesis of functionalized p-dihydrobenzoquinones and p-benzoquinones based on [3+3] cyclizations of 1,3-bis-silyl enol ethers
作者:Zafar Ahmed、Christine Fischer、Anke Spannenberg、Peter Langer
DOI:10.1016/j.tet.2006.03.019
日期:2006.5
Functionalized mono-protected p-dihydrobenzoquinones were prepared by [3+3] cyclization of 1,3-bis-silyl enol ethers with 2-acyloxy-3-(silyloxy)alk-2-en-1-ones. Deprotection and oxidation of the products afforded the corresponding p-benzoquinones.
通过将1,3-双甲硅烷基烯醇醚与2-酰氧基-3-(甲硅烷氧基)alk-2-en-1-one进行[3 + 3]环化,可以制备官能化的单保护的对二氢苯醌。产物的脱保护和氧化得到相应的对-苯醌。