EPR studies of nitrogen-centred free radicals. Part 53. 1 Isolation, EPR spectra and magnetic characterization of N-(arylthio)-2, 4-diaryl-6-cyanophenylaminyls

M Nakatsuji, Y Miura, Y Teki

Index: Nakatsuji, Masaaki; Miura, Yozo; Teki, Yoshio Journal of the Chemical Society, Perkin Transactions 2, 2001 , # 5 p. 738 - 744

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Citation Number: 8

Abstract

Scheme 1 Reactions and conditions: i, BTMA Br 3 , CaCO 3 , CH 2 Cl 2 –MeOH, room temp; ii, Ar 1 B(OH) 2 , (PPh 3 ) 4 Pd, K 2 CO 3 , benzene–EtOH–H 2 O, reflux; iii, Ar 2 SCl, Et 3 N, dry ether or THF, 0 °C; iv, PbO 2 , benzene, room temp. ... Oxidation of precursors 6–10 was carried out in benzene using PbO 2 as oxidant. When PbO 2 was added to stirred solutions of precursors, the solutions immediately turned to dark green. In the cases of 1–3 the ...