91936-08-2Relevant academic research and scientific papers
A Carbon-13 Nmr Assignment Study of 3,5-Diarylisoxazoles
Baumstark, Alfons L.,Chrisope, Douglas R.,Keel, Rebecca A.,Boykin, David W.
, p. 1719 - 1721 (2007/10/02)
The assignment of the carbon-13 nmr resonances of 3-(aryl)-5-phenylisoxazoles (I) and 3-phenyl-5-(aryl)isoxazoles (II) in dimethylsulfoxide-d6 has been made.The assignments were made by using model compounds, chemical shift arguments, coupling with fluorine substituents, and shifts resulting from quaternization of the isoxazole ring.A carbon-13 nmr method for distinguishing between I and II which can be produced simulaneously by certain synthetic methods is presented.
