Organic Analysis. XII. Infrared Spectra of Phenylsulfonyl Derivatives. (2). SO_2-Stretching Frequencies of Benzenesulfonamide Derivatives and CO-Stretching Frequencies of N-Acetylsulfonamide Groups.

概要

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Infrared spectra of 48 benzenesulfonamide derivatives were measured and substituent effect on the SO_2-stretching frequencies was discussed, comparing with those of phenyl sulfone derivatives. The SO_2 frequencies, especially ν_<as>, of benzenesulfonamide derivatives proved to be in a shorter wave-length region than that of phenyl sulfone derivatives. Electrondonating or-accepting groups attached to the phenyl ring or directly to the sulfonamide group shifted the SO_2 frequencies to a longer or a shorter wave-length region, respectively. The CO streching frequency of N-acetylsulfonamide group showed a large shift to a shorter wave-length region. Synthesis of some benzenesulfonamide derivatives was also described.
公益社団法人日本薬学会の論文
1958-12-15