Title

A Simple and Convenient Synthesis of a Multifunctional Spin Probe, Phosphonate Derivative of a Persistent Radical of the Triarylmethyl Series.

Authors

Rogozhnikova, O. Yu.; Trukhin, D. V.; Asanbaeva, N. B.; Tormyshev, V. M.

Abstract

The reaction of tris(8-carboxy-2,2,6,6-tetramethylbenzo[1,2-d;4,5-d′]bis[1,3]dithiol-4-yl)methanol, diamagnetic precursor of Finland trityl radical} with trifluoroacetic acid gave the corresponding triarylmethyl cation. Nucleophilic quenching of this cation with triethyl phosphite generated trityl radical containing a diethyl phosphonate moiety, and hydrolysis of the latter to phosphonic acid afforded a multifunctional oxygen- and pH-sensitive spin probe.

Subjects

FINLAND; PHOSPHONATE derivatives; PHOSPHONATES; PHOSPHONIC acids; TRIFLUOROACETIC acid; RADICALS (Chemistry); MOIETIES (Chemistry)

Publication

Russian Journal of Organic Chemistry, 2021, Vol 57, Issue 6, p905

ISSN

1070-4280

Publication type

Academic Journal

DOI

10.1134/S107042802106004X