Facile Sc(OTf)<sub>3</sub>-Catalyzed Generation and Successive Aromatization of Isobenzofuran from <i>o</i>-Dicarbonylbenzenes
作者:Yuta Nishina、Tatsuya Kida、Tomonari Ureshino
DOI:10.1021/ol201479p
日期:2011.8.5
Isobenzofuran can be prepared from o-phthalaldehyde using hydrosilane. The formed isobenzofuran is trapped by an alkene via a Diels–Alder reaction. Further dehydration proceeds to furnish the conjugated aromatic compound. This multistep reaction was promoted by catalytic amounts of Sc(OTf)3.
异苯并呋喃可以使用氢化硅烷由邻苯二甲醛制备。形成的异苯并呋喃通过狄尔斯-阿尔德反应被烯烃捕获。进一步脱水以提供共轭芳族化合物。催化量的Sc(OTf)3促进了该多步反应。