Martin, M. L. published the artcileApplication of nitrogen-15 spectroscopy and dynamic NMR to the study of ureas, thioureas, and their Lewis acid adducts, Synthetic Route of 6972-05-0, the publication is Organic Magnetic Resonance (1980), 13(6), 396-402, database is CAplus.
Rotational barriers and 15N chem. shifts in 34 ureas and thioureas were measured, and several previously unobsd. rotational barriers were detected using lanthanide reagents or a high-field spectrometer. Nearly constant effects on the rotational activation energy and the 15N shift were produced on going from ureas to the corresponding thioureas, and correlations were observed between the ¦¤G? and ¦Ä(15N) values. The results are discussed in terms of lone-pair delocalization, and anomalies with respect to the general behavior may be due to the effect of steric torsion in crowded structures on 15N shifts and rotation barriers.
Organic Magnetic Resonance published new progress about 6972-05-0. 6972-05-0 belongs to catalysis-chemistry, auxiliary class Thiourea,Amine,Aliphatic hydrocarbon chain,Amide, name is 1,1-Dimethylthiourea, and the molecular formula is C3H8N2S, Synthetic Route of 6972-05-0.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia