Cover Feature: Base-Mediated Generation of Ketenimines from Ynamides: Direct Access to Azetidinimines by an Imino-Staudinger Synthesis (Chem. Eur. J. 53/2017).

Ynamides were used as precursors for the in situ generation of highly reactive ketenimines which were trapped with imines in a [2+2] cycloaddition under microwave irradiation. Twenty novel azetidinimines have been prepared in this straightforward and operationally simple manner. Furthermore, the products arising from this imino‐Staudinger synthesis were functionalized using a wide range of protocols that leave the four‐membered amidine ring intact. (Illustration by E. Menneteau, CNRS‐PRC 2017). More information can be found in the Communication by R. H. Dodd, K. Cariou et al. on page 12991. [ABSTRACT FROM AUTHOR]