Research Core for Interdisciplinary Sciences, Okayama University, Tsushima, Okayama 700-8530, Japan.
Org Lett. 2011 Aug 5;13(15):3960-3. doi: 10.1021/ol201479p. Epub 2011 Jul 6.
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).
异苯并呋喃可由邻苯二醛与硅烷反应制备。形成的异苯并呋喃通过 Diels-Alder 反应被烯烃捕获。进一步脱水生成共轭芳香族化合物。该多步反应由催化量的 Sc(OTf)3 促进。