Synthesis of 2, 4-Dioxo-3, 3-diethyl-piperidine
نویسندگان
چکیده
منابع مشابه
Methyl 3-(4-chlorophenyl)-2-(1,3-dimethyl-2,5-dioxo-4-phenylimidazolidin-4-yl)-3-oxopropanoate
The title compound, C(21)H(19)ClN(2)O(5), is a tetra-substituted hydantoin derivative which contains an imidazolidine-2,4-dione core. The dihedral angle between the aromatic rings is 64.53 (14)°. In the crystal, weak inter-molecular C-H⋯O hydrogen bonding is found. An intra-molecular C-H⋯O inter-action also occurs.
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The asymmetric unit of the title compound, C(17)H(25)NO(7)S, contains two independent mol-ecules, which are enanti-omers forming a hydrogen-bonded dimer associated with two R(2) (2)(7) patterns. In each mol-ecule, one ethyl group from the two available ethyl ester functional groups is disordered. In one mol-ecule, the ethyl group of the ester function from an α-carb-oxy-lic acid is positionally...
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In the title compound, C(19)H(20)F(6)N(2)O(8), the eth-oxy and ethyl groups are disordered over two sets of sites, with occupancy ratios of 0.212 (18):0.788 (18) and 0.746 (6):0.254 (6), respectively. The piperidine ring adopts a chair conformation. In the mol-ecule, intra-molecular O-H⋯O hydrogen bonds form two S(6) ring motifs. In the crystal, mol-ecules are linked via O-H⋯O and C-H⋯O hydroge...
متن کامل(±)-3-Benzyloxy-1-(4-methoxybenzyl)piperidine-2-thione
The title mol-ecule, C20H23NO2S, adopts a twisted conformation in which the two aromatic rings connected to the central piperidine ring are orientated trans to each other. An intra-molecular C-H⋯S contact occurs. In the crystal, C-H⋯π and C-H⋯O inter-actions act to stabilize the structure in three dimensions.
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The crystal structure of the title compound, C(18)H(13)NO(4), the oxidized form of the drug aminaftone used in venous disease therapy, is characterized by the presence of ribbons of hydrogen-bonded mol-ecules parallel to the [111] crystallographic direction and by stacking inter-actions between rings [centroid-centroid distance between quinone rings = 3.684 (3) Å and between amino-benzoate ring...
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ژورنال
عنوان ژورنال: YAKUGAKU ZASSHI
سال: 1949
ISSN: 0031-6903,1347-5231
DOI: 10.1248/yakushi1947.69.4_194