A RCM/CM process followed by a further nucleophilic substitution allowed the formation of an azido pyrone which was implicated into a copper-catalyzed [3+2] cycloaddition with various alkynes. Among the different conditions tested, the use of copper(II) salts furnished the expected adducts in a range of 42-99% yield.
在 RCM/CM 过程中,通过进一步的亲核取代,可以形成
叠氮吡喃酮,并在
铜催化下与各种
炔烃发生[3+2]环加成反应。在测试的不同条件中,使用
铜(II)盐可以产生预期的加合物,产率在 42-99% 之间。