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Synthesis of Propiolamide and 1H, 13C and 15N NMR Spectra of Formamide, Acetamide and Propiolamide

✍ Scribed by Thomas D. Ferris; Peter T. Lee; Thomas C. Farrar

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
314 KB
Volume
35
Category
Article
ISSN
0749-1581

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✦ Synopsis

A high-yield synthesis and puriÐcation of propiolamide is described. The structure and purity of the compound were conÐrmed by 1H, 13C and 15N NMR studies. Natural abundance 13C and 15N chemical shift measurements in 3.0 M acetonitrile solutions are reported along with 1H-1H, 1H-15N and 1H-13C spin coupling constants. Polarization transfer techniques were used for the 15N and 13C measurements. The propiolamide NMR parameters were compared with those for 3.0 M solutions of formamide and acetamide in acetonitrile solution. Measurements at 298 and 278 K indicated that for all three compounds there is still signiÐcant rotation about the carbon-nitrogen bond at room temperature.

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