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CIDNP of 13C and 1H nuclei in the reactions of cyclohexadienone carbenes |
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| Authors: | G A Nikiforov Sh A Markaryan L G Plekhanova B D Sviridov S V Rykov V V Ershov A L Buchachenko T Pehk T Saluvere E Lippmaa |
| Abstract: | Thermal decomposition of 4-diazo-2,6-di-tert-butyl-2, 5-cyclohexadien-1-one in perhalogenated solvents has been investigated. The decomposition reaction proceeds via a carbene intermediate first to a singlet and then to an effectively triplet free encounter radical pair formed in a halogen abstraction reaction. The polarisation of the stable reaction product is determined by competing processes in the primary cage, intersystem crossing and escape from the cage. |
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