Evidence for an umpolung type of [2+2] cycloaddition of 2-carbamoyl ketenes.

Autor: Zakaszewska, Anna, Najda-Mocarska, Ewelina, Makowiec, Sławomir
Předmět:
Zdroj: New Journal of Chemistry; 7/21/2017, Vol. 41 Issue 14, p6067-6070, 4p
Abstrakt: Ketenes generated during the thermal decomposition of 5-[(N-aryl/alkylamino)(hydroxyl)methylene]-2,2-dimethyl-1,3-dioxa-4,6-diones react with highly electrophilic iminium ions. The initial [2+2] cycloaddition product rearranges to 2-arylidene malonamide. Mechanistic aspects of the process are presented. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index