An efficient route to highly strained cyclobutenes: indium-catalyzed reactions of enynals with alkynes.
Journal: Chemical Communications (Cambridge, England)
Published:
Abstract
A catalytic method to synthesize the highly strained cyclobutene was developed. The reaction was believed to proceed through a formal indium-catalyzed [2+2] cycloaddition between electron-deficient enynals and various alkynes.
Authors
Renxiao Liang, Huanfeng Jiang, Shifa Zhu