作者:Alejandro Criado、Manuel Vilas-Varela、Agustín Cobas、Dolores Pérez、Diego Peña、Enrique Guitián
DOI:10.1021/jo4022265
日期:2013.12.20
tandem cycloaddition reactions with high stereoselectivity. The reaction of bisfurans with dimethyl acetylenedicarboxylate (DMAD) involves tandem [4 + 2]/[4 + 2] cycloadditions in a pincer mode. The reaction of oligofurans with arynes involves stereoselective tandem [4 + 2]/[4 + 2] cycloaddition reactions in a domino mode. The corresponding aryne adducts have been transformed into extended perylene derivatives
由刚性链连接的寡聚呋喃以高立体选择性进行串联环加成反应。双呋喃与乙炔二甲酸二甲酯(DMAD)的反应涉及在钳子模式下串联[4 + 2] / [4 + 2]环加成反应。寡呋喃与芳烃的反应涉及多米诺骨牌模式的立体选择性串联[4 + 2] / [4 + 2]环加成反应。通过脱氧和用HCl / EtOH进行芳构化,相应的芳烃加合物已转化为扩展的per衍生物。