Reversal of the regioselectivity in a cycloaddition of o-quinones by varying the position of alkoxy substituents
作者:Atsuhito Kuboki、Toru Yamamoto、Mamie Taira、Tetsuya Arishige、Rina Konishi、Mami Hamabata、Mutsumi Shirahama、Takeya Hiramatsu、Kohei Kuyama、Susumu Ohira
DOI:10.1016/j.tetlet.2008.02.109
日期:2008.4
We have investigated the regioselective cycloaddition of o-quinones 1b–e with the protected sinapyl alcohol 2. It was found that the position of the alkoxy substituent on the o-quinone ring controlled the regioselectivity of the cycloaddition. In addition, our reported procedure for determining the location of the side chains on 1,4-benzodioxanes has been improved.
我们研究了邻醌1b - e与受保护的芥子醇2的区域选择性环加成反应。发现在邻醌环上的烷氧基取代基的位置控制环加成的区域选择性。此外,我们报告的用于确定1,4-苯并二恶烷上侧链位置的程序已得到改进。