Di-f-butyl nitroxide

The procedure described is that of Hoffmann, Feldman, Gelblum, and Hodgson 4 and is the only one known at this time for the preparation of substantial amounts of di-f-butyl nitroxide. 

Fig. 2. Stern-Volmer plot for the quenching of (+) cycloadduct 56, ( ) ene product 5 7, and (0) azepinone 58 formation from photoaddition of 3-ethoxy isoindolenone (50) to tetramethyl-ethylene by di-f- butyl nitroxide (DTBN)...

Di-f-butyl nitroxide, 129,461 Di-f-butyl peroxide, 123 Di-f-butylquinones, 121 Di-n-butyl sulfide, 6 Di-n-butyl sulfoxide, 6... 

Di-t-butylcatechol, 78 Di-n-butylcopperlithium, 79-81 Di-f-butyldiaziridinone, 233 Di-n-butyl ether, 121, 167 Di-f-butyl nitroxide, 81 Di-t-butyl peresters, 37... 

The behaviour of CeFe in the presence of di-t-butyl nitroxide" and with respect to oxygen at various pressures - has been monitored by F-19 NMR. Similar studies have been made of its self-diiTusion and density as a function ofpressure and temperature both alone and as a binary liquid with n-parafiins. A dynamic F-19 NMR investigation has been made of the torsional barriers in pentaduorobenzaldehyde, its conjugate acid, and protonated pentafluoroacetophenone. ... 

The pentane solution is dried over anhydrous magnesium sulfate and fractionated with an efficient spinning-band column (Note 10). After foreruns of pentane and glyme containing f-nitrosobutane are removed (Note 11), 26-27 g. (42-43%) of red di-/-butyl nitroxide, b.p. 59-60° (11 mm.), is obtained. 

Among chain-breaking antioxidants the stable dialkyl nitroxides such as di-f erf-butyl nitroxide (I) and 2,2,6,6-tetramethyl-4-pyridone nitroxide (II) inhibit oxidation by the simplest mechanism and therefore exhibit... 

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