How to reduce TEMPO stable radical for NMR

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Adel Amer

Please, read

--- http://etheses.whiterose.ac.uk/1153/5/Chapter_4.pdf

page 158

Yes, you may obtain NMR spectra of paramagnetic species using paramagnetic solvents which serve as "spin relaxers"; see R. W. Kreilich. J. Am. Chem. SOC., 90, 2711 (1968); R. Chiarelli and A. Rassat, Tetrahedron, 29, 3639 (1973).

Good luck

Yangho Jeong

i appreciated it. it will be helful for me. let me try!!

Clemens Anklin

I was once told an easy trick. Add Vitamin C.