(3R,3aS,6aR)-2,5-Dimethyl-3-(5-phenyl-2-thienyl)perhydropyrrolo[3,4-d][1,2]oxazole-4,6-dione
نویسندگان
چکیده
The crystal structure of the title compound, C(17)H(16)N(2)O(3)S, exhibits intra-molecular C-H⋯S and inter-molecular C-H⋯S and C-H⋯O hydrogen bonds, C-S⋯N [S⋯N = 3.033 (2) Å and C-S⋯N = 142.76 (9)°] inter-actions, and C-H⋯π inter-actions; these inter-actions generate S(4), S(6) and R(2) (2)(14) ring motifs. The isoxazole ring adopts an envelope conformation, with the N atom displaced by 0.672 (2) Å from the plane of the other ring atoms. The thio-phene ring is oriented with respect to the succinimide and phenyl rings at dihedral angles of 40.03 (12) and 5.21 (13)°, respectively. The dihedral angle between the succinimide and phenyl rings is 39.38 (12)°.
منابع مشابه
2,5-Dimethyl-3-(3-methylthiophen-2-yl)perhydropyrrolo[3,4-d]isoxazole-4,6-dione
The crystal structure of the title compound, C(12)H(14)N(2)O(3)S, exhibits intra-molecular C-H⋯S and inter-molecular C-H⋯S, C-H⋯O hydrogen bonds, C-S⋯N [S⋯N = 2.980 (2) Å, C-S⋯N = 145.78 (17)°] and C-H⋯π inter-actions; these inter-actions generate two C(5) chains and S(4), S(6) and R(4) (4)(28) ring motifs. The isoxazole ring has an envelope conformation; the N atom, which is the flap atom, is ...
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Reaction of Meldrum's acid with 3,4-bis(chloromethyl)-2,5-dimethylthiophene (1) or 3,4-bis(bromomethyl)-2,5-dimethylthiophene (2) produces the kinetically favored C,O-dialkylation product, 1,3,7,7-tetramethyl-4H,10H-6,8,9-trioxa-2-thiabenz[f]azulen-5-one (4). Recrystallization of 4 from refluxing methanol results in the methanolysis product 5-(4-methoxymethyl-2,5-dimethylthiophen-3-ylmethyl)-2,...
متن کامل2-Methyl-3-(5-methyl-2-thienyl)-5-phenylperhydropyrrolo[3,4-d]isoxazole-4,6-dione
In the mol-ecule of the title compound, C(17)H(16)N(2)O(3)S, the phenyl ring is oriented with respect to the thio-phene and succinimide rings at dihedral angles of 88.08 (3) and 57.81 (3)°, respectively; the dihedral angle between the thio-phene and succinimide rings is 35.69 (3)°. The isoxazole ring adopts an envelope conformation with the N atom at the flap position. In the crystal structure,...
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Mol-ecules of the title compound [systematic name: (2R,5S,7S)-2-phenyl-7-phenyl-sulfanyl-1-aza-3-oxa-bicyclo-[3.3.0]octan-8-one], C(18)H(17)NO(2)S, form high quality crystals even though they are only packed using C-H⋯O(carbon-yl) and weak C-H⋯S inter-actions. The dihedral angle between the aromatic rings is 85.53 (5)°. The fused rings adopt envelope and twist conformations.
متن کامل3′,7′,7′-Trimethyl-1′-phenyl-5′,6′,7′,8′-tetrahydrospiro[indoline-3,4′-(1H,4H-pyrazolo[3,4-b]chromene)]-2,5′-dione
The title spiro-oxindole compound, C(26)H(23)N(3)O(3), was prepared by the reaction of isatin, 3-methyl-1-phenyl-2-pyrazolin-5-one and 5,5-dimethyl-cyclo-hexane-1,3-dione in an ethanol solution. The fused cyclo-hexene ring adopts an envelope conformation. The dihedral angle between the aromatic and pyrazoline rings is 23.70 (8)°. An intra-molecular C-H⋯O inter-action occurs. The crystal structu...
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عنوان ژورنال:
دوره 64 شماره
صفحات -
تاریخ انتشار 2008