Use of the DielsâAlder Cycloaddition of Tetracyclone and Internal Aryl Acetylenes for the Synthesis of Functionalized AtropÂisomeric Biaryls
作者:Marko Hapke、Andrey Gutnov、Nico Weding、Anke Spannenberg、Christine Fischer、Christian Benkhäuser-Schunk、Barbara Heller
DOI:10.1002/ejoc.200901080
日期:2010.1
The Diels–Alder cycloaddition reaction of tetracyclone and functionalized, internal aryl acetylenes gave access to a number of bulky atropisomeric biaryls in good to excellent yield. The synthesis is convenient and yields the pure biaryls without tedious work-up and purification procedures. Exemplarily the atropisomers have been resolved via the diastereomers in an easy and efficient manner to yield
四环酮和官能化的内部芳基乙炔的 Diels-Alder 环加成反应以良好到优异的产率获得了许多庞大的阻转异构联芳基化合物。合成方便,无需繁琐的后处理和纯化程序即可得到纯的联芳基化合物。示例性地,阻转异构体已通过非对映异构体以容易且有效的方式拆分以产生对映异构体。