Furan derivatives—LXXVII : Synthesis and study of sulphides and sulphones of 5-nitrofuran series
作者： R. Kada , V. Knoppová , A. Jurášek , J. Kováč
DOI: 10.1016/0040-4020(76)85021-1
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摘要: Abstract Two series of 5-nitro-2-furfurylarylsulphides 4a–4f and 5-nitro-2-furfurylarylsulphones 5a–5g were prepared by the reaction 5-nitrofurfurylbromide 1 with 4-substituted thiophenols 2a–2f benzenesulphinic acids 3a–3g , respectively. In these compounds transmission polar effects substituents -S- SO 2 groups, respectively, was found to take place. p K Values studied has been determined spectroscopically.
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