Promotion of the [PPN][Rh (CO) 4]-catalysed carbonylation of nitrobenzene by 2-hydroxypyridine and related molecules: an apparent bifunctional activation
F Ragaini, E Gallo, S Cenini
Index: Ragaini, Fabio; Gallo, Emma; Cenini, Sergio Journal of Organometallic Chemistry, 2000 , vol. 593-594, p. 109 - 118
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Citation Number: 7
Abstract
2-Hydroxypyridine and related molecules have a large activating effect on the previously reported [PPN][Rh (CO) 4]-based catalytic system for the reductive carbonylation of nitrobenzene to methyl phenylcarbamate (PPN+=(PPh3) 2N+). The effect is not due to the known 2-hydroxypyridine–2-pyridone tautomeric equilibrium, since 4-hydroxypyridine, for which the same tautomeric equilibrium exists, completely inhibits the reaction. A ...
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