N. Yu. Osokina

CYCLOPROPANE RING OPENING IN THE REACTION OF METHYLENECYCLOPROPANE WITH SILYL RADICALS STABILIZED ON AN ACTIVATED AEROSIL SURFACE

Alkyl type radicals stable at room temperature and incorporating a double bond not conjugated with the free valence, ≡Si−C(=CH2)−CH2−CH2, are formed in the reaction of methylenecyclopropane with silyl radicals (≡SiO)3Si on an activated Aerosil surface.

Photochemistry of Aliphatic Nitroxide Radicals Grafted onto Activated Aerosil Surface

The mechanism of photoinduced transformations of nitroxide radicals ≡SiON(O·)CH3 (I) and ≡SiOCH2N(O·)CH3 (II) obtained on the activated aerosil surface was studied. The nitroxides were photolyzed with 436-nm light at 77 K. It was shown that the action of light in the long-wavelength absorption band corresponding to the n–π* transition resulted in the dissociation of the O–N or C–N bond in radicals I or II, respectively. The quantum yields of these reactions were found to be ≈0.6 and ≈0.002, respectively.

Interaction of Nitromethane with Modified Paramagnetic Defects on a Thermochemically Activated Silica Surface

AbstractIt was found that the interaction of the modified paramagnetic defects ≡SiO(CH2)n

Photocyclization of Substituted Allyl Radicals and Properties of the Resulting Cyclopropyl Radicals

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Cyclopropane Ring Opening in the Reaction Between Methylenecyclopropane and Silyl Radicals, Stabilized on Activated Silica Surface.

H2 (n = 0.1) with nitromethane on a thermochemically activated silica surface at 300 K results in the formation of the following nitroxyl radicals: ≡SiO(CH2)nCH2ON(

Nitroxides Grafted to an Activated Aerosil Surface

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