Journal of the Chemical Society. Perkin transactions II p. 1523 - 1526 (1991)
Update date:2022-08-10
Topics:
Ramakrishnan, Kalyani
Srinivasan, Vangalur S.
Thiosemicarbazones of benzaldehydes, acetophenones and benzophenones are oxidatively hydrolysed by potassium bromate, (BrV), in the presence of mercury(II) acetate, as HgII forms a complex with sulphur atoms, increasing the lability of the N-H bond.The rates of these reactions are less susceptible to the electronic influence of the substituents at the phenyl ring compared with other oxidants, showing that N-bromate ester formation is the rate-determinig step of this reaction.Such N-bromate ester formation seems to occur more readily with HgII-sulphur complexes.
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