Journal ArticleDOI
3‐(4‐Chlorophenyl)‐5‐methyl‐2‐propylamino‐8,9,10,11‐tetrahydro‐2‐benzothieno[2′,3′;2,3]pyrido[4,5‐d]pyrimidin‐4(3H)‐one
TLDR
The asymmetric unit of the title compound, C23H23ClN4OS, contains two crystallographically independent molcules in which the orientations of the propylamine group and chloro-phenyl rings with respect to the fused ring system are different as mentioned in this paper.Abstract:
The asymmetric unit of the title compound, C23H23ClN4OS, contains two crystallographically independent molecules in which the orientations of the propylamine group and chlorophenyl rings with respect to the fused ring system are different. The terminal cyclohexene ring adopts a half-chair conformation. The crystal packing is stabilized by N—H⋯O, N—H⋯N and C—H⋯O hydrogen bonds and π–π interactions.read more
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Crystal structure of ethyl 2-phenyl-4-(prop-2-yn-1-yl-oxy)-5,6,7,8-tetra-hydro-pyrido[4',3':4,5]thieno[2,3-d]pyrimidine-7-carboxyl-ate.
Mehmet Akkurt,Victoria A. Smolenski,Shaaban K. Mohamed,Shaaban K. Mohamed,Jerry P. Jasinski,Essam Ahmed,Mustafa R. Albayati +6 more
TL;DR: In the title compound, C21H19N3O3S, the 5,6,7,8-tetrahydropyridine ring adopts a half-chair conformation and forms a dihedral angle of 2.66 (6)° with the attached phenyl ring.
References
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Tin (IV) Chloride-promoted Synthesis of 4-Aminopyridines and 4-Aminoquinolines
TL;DR: Ortho-aminobenzonitriles as discussed by the authors react with β-ketoesters and alkyl malonates, in the presence of stoichiometric amounts of tin(IV) chloride, to give 4-aminoquinolines 2 and 4amino-2-quinolones 3 respectively.
Journal ArticleDOI
The structure of thiophene in the gas phase as determined by electron diffraction1
R. A. Bonham,F. A. Momany +1 more
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A new, general approach for the synthesis of heteroannulated 3,1-oxazin-4-ones
TL;DR: In this article, the β-(N-Triphenylphosphoranyliden)-enamino esters afford the synthetically useful heteroannulated 3,1-oxazin-4-ones with aroyl chlorides in different solvents.