Facile Access to Versatile Polyaromatic Building Blocks: Selectively Protected Benzocyclobutenedione Derivatives via Regioselective [2+2] Cycloaddition of -Alkoxybenzyne and Ketene Silyl Acetal
作者:Toshiyuki Hamura、Takamitsu Hosoya、Hiroki Yamaguchi、Yokusu Kuriyama、Mitsujiro Tanabe、Makoto Miyamoto、Yoshizumi Yasui、Takashi Matsumoto、Keisuke Suzuki
DOI:10.1002/1522-2675(200211)85:11<3589::aid-hlca3589>3.0.co;2-z
日期:2002.11
facile, divergent access to highly oxygenated benzocyclobutene derivatives was developed via the regioselective [2+2] cycloaddition of α-alkoxybenzynes and ketene silyl acetals. The cycloadducts could be converted to selectively protected alkoxybenzocyclobutenediones, an attractive class of compounds for the synthesis of polyaromatic compounds. As one possible application, divergent access to a regioisomer
通过 α-烷氧基苄基和乙烯酮甲硅烷基缩醛的区域选择性 [2+2] 环加成,开发了一种容易、不同的方法获得高度氧化的苯并环丁烯衍生物。环加合物可以转化为选择性保护的烷氧基苯并环丁烯二酮,这是用于合成多芳烃化合物的一类有吸引力的化合物。作为一种可能的应用,描述了对多环芳族化合物的 Hauser 方法对磺酰苯酞的区域异构体对的不同访问。