The dipolar cycloaddition of methyl acrylate to 1,5,6-trimethyl-3-oxidopyrazinium
نویسندگان
چکیده
منابع مشابه
1,3-Dipolar Cycloaddition Reaction of Nitrile Oxides to Isatin Imines
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متن کامل1,3-dipolar cycloaddition reactions of N-methyl-substituted tricyclic imides.
The [3+2] cycloadditions of N-methyl derivatives of unsaturated imides with various nitrile oxides to yield new bridged isoxazoline derivatives with potential biological activity is described.
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In the mol-ecule of the title compound, C(17)H(15)BrO(3), the rings make a dihedral angle of 75.54 (17)°. In the crystal structure, inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into centrosymmetric dimers, and the π-stacked dimers inter-act with neighbouring dimers via C-H⋯π stacking inter-actions.
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In the title compound, C11H10O4, the methyl acrylate sub-stituent adopts an extended E conformation with all torsion angles close to 180°. The conformation of the keto group with respect to the olefinic double bond is typically S-trans. In the crystal, mol-ecules are linked via pairs of C-H⋯O hydrogen bonds, forming inversion dimers with an R 2 (2)(8) graph-set motif. The dimers are further lin...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2006
ISSN: 1600-5368
DOI: 10.1107/s1600536806007501