625 research outputs found
1-(2-Hydroxyethyl)imidazolidine-2-thione
1-(2-Hydroxyethyl)imidazolidine-2-thione (1) was obtained as a product from an in situ reaction between N-(2-hydroxyethyl)ethylenediamine, carbon disulfide, potassium hydroxide, and di(4-fluorobenzyl)tin dichloride. Compound 1 was characterized by IR, UV, 1H, 13C{1H}, and 2D (COSY, NOESY, HSQC, and HMBC) NMR spectroscopies. The cyclic molecular structure was confirmed by single crystal X-ray crystallography which showed the five-membered ring to
be non-planar and the Ď-electron density to be localized over the CN2S chromophore. In the crystal, thioamideâNâH . . . O(hydroxy) and hydroxyâOâH . . . S(thione) hydrogen bonds lead to supramolecular layers in the bc-plane
The Significance of National Wildlife Refuges in the Development of U.S. Conservation Policy
Is the Bankruptcy Code an Adequate Mechanism for Resolving the Distress of Systemically Important Institutions?
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