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Synthesis of Thio Derivatives of Phenobarbital and Its N-Methyl Derivatives

Stasiewicz-Urban A., Kubaszek M., Żylewski M., Cegła M., Bojarski J.

Polish Journal of Chemistry

2004

Vol.78 /nr 11-12

2105-2115

Differently substituted thio derivatives of phenobarbital and its N-mono- and N,N'-dimethyl derivatives were obtained by thionation of respective substrates with Lawesson's reagent. The structure of the products not described in the literature was confirmed by spectral and elemental analyses. The spectral properties allow to differentiate between positional isomers of the products.