Ni-catalyzed [3+2+2] cycloaddition of ethyl cyclopropylideneacetate and 1,3-diynes. Application to the three-component cycloaddition
作者:Ryu Yamasaki、Ikuo Sotome、Shunsuke Komagawa、Isao Azumaya、Hyuma Masu、Shinichi Saito
DOI:10.1016/j.tetlet.2008.12.092
日期:2009.3
The Ni-catalyzed [3+2+2] cocyclization between ethyl cyclopropylideneacetate (1) and 1,3-diynes afforded cycloheptadiene derivatives. The three-component reaction of 1, 1,3-diynes, and alkynes proceeded with good yield and high selectivity. Scope of the substrates was studied, and the origin of chemo- and regioselectivity of the reaction is discussed.
镍在环乙叉基乙酸乙酯(1)和1,3-二炔之间的Ni催化[3 + 2 + 2]共环化反应得到环庚二烯衍生物。的三组分反应1,1,3-二炔和炔烃进行具有良好的产率和高选择性。研究了底物的范围,并讨论了反应的化学和区域选择性的起源。