Infrared Spectra of Phenylsulfonyl Derivatives. (4). The Infrared Spectra of N-Acylsulfonamide Derivatives. (Organic Analysis. XLVIII)
作者:Yo Ueda、Hiroshige Yano、Tsutomu Momose
DOI:10.1248/cpb.12.5
日期:——
The splitting phenomenon of the carbonyl absorptions and the shifts of S-N stretching vibrations to a longer wave length region of some N-acyl-N-substituted-sulfonamide derivatives measured in solid state were described. Tertiary sulfonamides had their SO2 stretching vibrations at a shorter wave length region than secondary sulfonamides. N-Acetyl-N-alkylmethane (or ethane) sulfonamide showed strong C-N stretching vibrations of the group N-CH2-R at about 1125cm-1. N-Acyl-N-substituted-sulfonamide derivatives had very strong asymmetric stretching vibrations of the group C-CO-N at 1250∼1290cm-1. Synthesis of some sulfonamide derivatives is also described.
在固态下测得的某些N-酰基-N-取代磺酰胺衍生物的羰基吸收分裂现象以及S-N伸缩振动向长波长区域的位移均有所描述。三级磺酰胺的SO2伸缩振动比二级磺酰胺位于更短的波长区域。N-乙酰基-N-烷基甲烷(或乙烷)磺酰胺在约1125cm-1处显示出强烈的N-CH2-R基团的C-N伸缩振动。N-酰基-N-取代磺酰胺衍生物在1250∼1290cm-1处具有非常强烈的C-CO-N基团的不对称伸缩振动。此外,还描述了一些磺酰胺衍生物的合成。