(1-Pyridinio)perfluorophenacylide: a new stable pyridinium ylide in the enol form
摘要:
The title compound, C13H6F5NO, exists in the enol form and adopts the E configuration about the enol double bond. It is the first example of an enol-type pyridinium ylide. The enol structure was unambiguously determined on the basis of the significantly longer C - O bond and shorter C - C bond. Intramolecular C - H center dot center dot center dot O and C - H center dot center dot center dot F hydrogen bonds are responsible for promotion of the enol form and for the stability of this compound.
(1-Pyridinio)perfluorophenacylide: a new stable pyridinium ylide in the enol form
作者:Shinji Yamada、Emiko Ohta
DOI:10.1107/s0108270108006318
日期:2008.4.15
The title compound, C13H6F5NO, exists in the enol form and adopts the E configuration about the enol double bond. It is the first example of an enol-type pyridinium ylide. The enol structure was unambiguously determined on the basis of the significantly longer C - O bond and shorter C - C bond. Intramolecular C - H center dot center dot center dot O and C - H center dot center dot center dot F hydrogen bonds are responsible for promotion of the enol form and for the stability of this compound.