✍ Scribed by Nguyen Kim-Thuan; J. C. Scaiano
No coin nor oath required. For personal study only.
The reactions of tert-butoxyl radicals with amines, leading to the formation of a-aminoalkyl radicals, and the reactions of these with the electron acceptor methyl viologen have been examined using laser flash photolysis techniques. For example, the radicals CH,CHNEt, and HOCH,CH N(CH,CH,OH), react with methyl viologen with rate constants equal to (1.3 2 0.1) x lo9 and (2.1 t 0.4) x 109M-' . s-', respectively, in wet acetonitrile a t 300 K.
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## Abstract The photo‐induced oxidation of NADH and its model compound, 1‐benzyl‐1,4–dihydronicotinamide (BNAH), by __N,N__′‐dimethyl‐4,4′‐bipyridinium dichloride (methyl viologen: MV^+^ ^+^) was studied in homogeneous and in micellar solution. In the overall, slightly endoergonic, reaction: NADH +
Evidence rs presented that the excited singlet and triplet states of aromatic hydrocarbons are oxidised by methyi viologen (hlV2>. Rate constants for electron transfer from triplet naphthalene, anthracene, phenanthrene and fluoranthene are close to diffusion-controlled whereas those for triplet l-cy