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IR spectroscopic characterization of 2-thiohydantoins and 2-thiobarbiturates
Journal of Pharmaceutical Sciences
|August 1, 1976
Abstract:
A characterization of 2-thiohydantoins and 2-thiobarbiturates by IR spectra is proposed, using three characteristic group frequencies: the "thioureide band" around 1500 cm-1 and the antisymmetric-symmetric stretching modes of NCS bonds around 1400 and 1200 cm-1. The general characteristic absorption areas are found by comparison with N-phenylthioureas and thioanilides.