p-hydroxybenzylation of 1,3-diketones with p-hydroxybenzyl alcohol via quinone methide formation followed by oxidative dearomatization/spiroannulation with suitable alcohols. The Friedel–Crafts alkylation of spiro[4.5]cyclohexadienones with indoles provided a broad array of highly diastereoselective C-3 alkylated spirocycles and cyclohepta[b]indoles depending upon the ring size of the fused cyclic ketones.
已经设计了一锅顺序的对羟基苄基化/氧化脱芳香化/螺环化以有效地构建含有螺环-环己二酮的
四氢呋喃。这通过在反应进行p的1,3-二酮与-hydroxybenzylation p羟基
苄基醇通过醌甲基化物的形成,随后氧化脱芳构化/ spiroannulation与合适的醇。螺[4.5]环己二酮与
吲哚的弗里德尔-克来夫茨烷基化反应提供了一系列高度非对映选择性的C-3烷基化螺环和环庚[ b ]
吲哚,具体取决于稠合环酮的环大小。