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Radical Reactions of Selenium and Tellurium Compounds

Rate constants for chalcogen group transfer in bimolecular substitution reac- [Pg.833]

RTeTeR with HjOj in aqueous THF involves a radical pathway. For reaction in an inert atmosphere, the mechanism involving reactions (50)-(52) is proposed. In the present of O2 the reaction is slowed down due to equilibrium (53). The reactivity of some related sulfur, selenium, and tellurium compounds has been reported. ... [Pg.72]

Hypervalent Sulphur Compounds and their Selenium and Tellurium Analogues.—The reaction of the trithiapentalene (682 R = Me) with trimethylsilyl or tributylstannyl radicals, which occurs at S-1, has been studied by e.s.r. spec-troscopy. The n.m.r. spectra of trithiapentalene (682 R = H) and the dioxathiapentalene (683), determined for the nematic phase, indicate that both... [Pg.204]

See other pages where Radical Reactions of Selenium and Tellurium Compounds is mentioned: [Pg.832]    [Pg.833]    [Pg.835]    [Pg.837]    [Pg.839]    [Pg.841]    [Pg.832]    [Pg.833]    [Pg.835]    [Pg.837]    [Pg.839]    [Pg.841]    [Pg.79]    [Pg.79]    [Pg.11]    [Pg.110]    [Pg.970]   


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Of selenium compounds

Radicals, and reaction

Reactions of radicals

Reactions tellurium

Selenium and compounds

Selenium compounds

Selenium reactions

Tellurium compounds

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