Results 141 to 150 of about 769 (187)
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Copper(I) halide complexes of 2-thiohydantoin and 5,5-diphenyl-2-thiohydantoin
Polyhedron, 2012Abstract A series of copper(I) halide complexes formulated as [CuX(L)2] [X = Cl, Br; L = 2-thiohydantoin (th) and 5,5-diphenyl-2-thiohydantoin (dpth)] were prepared and their photophysical and thermal (TG–DTA) behaviour was investigated. Further treatment of these complexes with triphenylphosphane gave mixed-ligand compounds [CuX(L)(PPh3)2 ...
P. Aslanidis +4 more
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Hydantoins, thiohydantoins, glycocyamidines—36
Tetrahedron, 1973Abstract In contrast to the α-chloroamides 1a-c which, when reacted with potassium N-cyanoanilide, furnish anomalous substitution products ( 2a-c ), the related nitrile and ester yields normal substitution products ( 3a and b ) under the same conditions.
Gy. Simig, K. Lempert, J. Tamás
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Multiple solid-phase synthesis of hydantoins and thiohydantoins
Molecular Diversity, 1997A novel general protocol for the construction of hydantoins and thiohydantoins on a solid support has been developed. Using this novel methodology, the synthesis of a diverse 96-compound library has been achieved. Resin-bound dipeptides are cyclised via the formation of an intermediate isocyanate or isothiocyanate on resin as the key step in the ...
G, Bhalay +4 more
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Acta Crystallographica Section C Crystal Structure Communications, 1998
The molecular structure of the title compound, 5,5-diphenyl-2-thioxoimidazolidin-4-one, C 15 H 12 N 2 OS, resembles that of 5,5-diphenylhydantoin (phenytoin). The C=S distance is 1.648 (2) A. The crystal structure consists of ribbon-like infinite sheets of molecules bonded by N-H...O and N-H...S hydrogen bonds.
A. W. Roszak, D. F. Weaver
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The molecular structure of the title compound, 5,5-diphenyl-2-thioxoimidazolidin-4-one, C 15 H 12 N 2 OS, resembles that of 5,5-diphenylhydantoin (phenytoin). The C=S distance is 1.648 (2) A. The crystal structure consists of ribbon-like infinite sheets of molecules bonded by N-H...O and N-H...S hydrogen bonds.
A. W. Roszak, D. F. Weaver
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IR absorption spectrum of thiohydantoin
Soviet Physics Journal, 1970The IR absorption spectrum of thiohydantoin is found in the range 400–3500 cam−1, and the normal-mode frequencies are calculated on the basis of a model. The IR spectrum is interpreted on the basis of the theoretical results, the experimental x-ray spectrum, and the microwave dielectric constants.
R. S. Lebedev +3 more
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Acta Crystallographica Section C Crystal Structure Communications, 1998
In the title compound (1-acetyl-4-oxoimidazolidine-2-thione, C5H6N2O2S), the plane of the acetyl group forms an angle of 6.7° with the essentially planar thiohydantoin ring. N—H⋯O hydrogen bonds create quasiplanar chains of molecules along the y axis.
J. S. Casas +5 more
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In the title compound (1-acetyl-4-oxoimidazolidine-2-thione, C5H6N2O2S), the plane of the acetyl group forms an angle of 6.7° with the essentially planar thiohydantoin ring. N—H⋯O hydrogen bonds create quasiplanar chains of molecules along the y axis.
J. S. Casas +5 more
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Thiohydantoin Nucleosides. Synthesis Approaches
ChemInform, 2004AbstractFor Abstract see ChemInform Abstract in Full Text.
Ahmed I. A. Khodair +2 more
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Journal of Medicinal Chemistry, 1986
A series of 5,5-diaryl-2-thiohydantoins and 5,5-diaryl-N3-substituted-2-thiohydantoins related to 5,5-diphenyl-2-thiohydantoin (DPTH) were investigated as potential hypolipidemic agents with the goal of increased potency over DPTH itself. In the 5,5-diaryl class, the best results were obtained by substituting two pyridyl rings for the phenyl rings ...
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A series of 5,5-diaryl-2-thiohydantoins and 5,5-diaryl-N3-substituted-2-thiohydantoins related to 5,5-diphenyl-2-thiohydantoin (DPTH) were investigated as potential hypolipidemic agents with the goal of increased potency over DPTH itself. In the 5,5-diaryl class, the best results were obtained by substituting two pyridyl rings for the phenyl rings ...
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Thiohydantoins. I. The Preparation of Some 2-Thiohydantoins from Amino Acids and Acylamino Acids
Australian Journal of Scientific Research Series A: Physical Sciences, 1952A reinvestigation of the stepwise degradation of peptides and proteins by the Schlack and Kumpf (1926) procedure, which involves conversion of the terminal carboxyl residue to a 5-substituted-2-thiohydantoin; has been undertaken. The following amino acids or their aoetyl derivatives have been converted by warming with acetic anhydride and ammonium ...
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Derivatives of 2-thiohydantoin as spectrophotometric analytical reagents
Talanta, 1978The synthesis, characteristics, properties and reaction with metallic ions of four pyridine derivatives of 2-thiohydantoin have been studied. 5-(2-Pyridyl)methylene-2-thiohydantoin, 5-(6-methyl-2-pyridyl) methylene-2-thiohydantoin, 5-(di-2-pyridyl)methylene-2-thiohydantoin and 5-[1-(2-pyridyl)-1-methyl] methylene-2-thiohydantoin have been synthesized ...
M T, González +3 more
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