Synthesis of Aryl-Substituted 1,4-Benzoquinonevia Water-Promoted and In(OTf)3-Catalyzedin situ Conjugate Addition-Dehydrogenation of Aromatic Compounds to 1,4-Benzoquinone in Water
作者:Hai-Bo Zhang、Li Liu、Yong-Jun Chen、Dong Wang、Chao-Jun Li
DOI:10.1002/adsc.200505248
日期:2006.1
Mono- and diaryl-substituted 1,4-quinones were synthesized by the In(OTf)3-catalyzed conjugate addition of aromatic C-nucleophiles to 1,4-quinone derivatives followed by in situ dehydrogenation in water. Water was found to be beneficial to the reaction. The regioselectivity of the addition reaction in water was also examined.
单和二芳基取代的1,4-醌是通过In(OTf)3催化的芳香族C-亲核试剂与1,4-醌衍生物的共轭加成反应,然后在水中进行原位脱氢而合成的。发现水对反应有利。还检查了加成反应在水中的区域选择性。