4-Methyl-2H-1,3-oxazine-2,6(3H)-dione
نویسندگان
چکیده
In the title compound, C(5)H(5)NO(3), the planar (maximum deviation = 0.075 Å for the ring O atom) mol-ecules form N-H⋯O hydrogen bonds in a zigzag chain (C-O⋯N bond angle ≃ 140°) between glide-related mol-ecules.
منابع مشابه
4,5-Dichloro-2H-1,3-oxazine-2,6(3H)-dione
In the title compound, C(4)HCl(2)NO(3), the essentially planar (maximum deviation = 0.023 Å for the ring O atom) mol-ecules form N-H⋯O hydrogen bonds between mol-ecules lying about inversion centers, forming eight-membered rings with an R(2) (2)(8) motif in graph-set notation.
متن کامل4-Bromo-2H-1,3-oxazine-2,6(3H)-dione
The title compound, C(4)H(2)BrNO(3), is one of a series of three substituted oxauracils prepared as precursors in the preparation of 1-aza-1,3-butadienes. Although each structure has identical potential for N-H⋯O inter-molecular hydrogen bonds, each forms a distinctive inter-molecular network. In the title compound, there are two independent mol-ecules in the asymmetric unit, with a non-crystal...
متن کاملA facile synthesis of novel herbicidal 1-phenyl-piperazine-2,6-diones.
Novel 1-phenyl-piperazine-2,6-diones were prepared by a new facile synthetic route using methyl N-substituted iminomonoacetate as starting material. The structures of these compounds were established by (1)H-NMR, (13)C-NMR and GC/MS. 2-(4-Chloro-5-cyclo-pentyl-oxy-2-fluorophenyl)-tetrahydro-2H-pyrido-[1,2-a]-pyrazine-1,3-(4H,6H)-dione displayed the greatest herbicidal activity.
متن کامل7-(1,3-Dioxolan-2-ylmethyl)-1,3-dimethylpurine-2,6(1H,3H)-dione trichloroacetic acid solvate
In the title compound, C(11)H(14)N(4)O(4)·C(2)HCl(3)O(2), the dioxolane ring adopts an envelope conformation. Doxophylline [7-(1,3-dioxolan-2-yl-meth-yl)-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione] and trichloro-acetic acid mol-ecules are linked by O-H⋯N and C-H⋯O hydrogen bonds.
متن کامل5-[(3-Fluorophenyl)(2-hydroxy-6-oxocyclohex-1-en-1- yl)methyl]-6-hydroxy-1,3-dimethylpyrimidine-2,4(1H, 3H)-dione
5-[(3-Fluorophenyl)(2-hydroxy-6-oxocyclohex-1-en-1-yl)-methyl]-6-hydroxy-1,3-dimethylpyrimidine-2,4(1H,3H)-dione 3 was synthesized via a multicomponent reaction. The Aldol–Michael addition reactions of N,N-dimethylbarbituric acid, cyclohexane-1,3-dione, and 3-fluorobenzaldehyde in aqueous solution gave the product in high yield. The molecular structure of the compound was confirmed by spectrosc...
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عنوان ژورنال:
دوره 65 شماره
صفحات -
تاریخ انتشار 2009