5-(4-Bromoanilinomethylene)-2,2-dimethyl-1,3-dioxane-4,6-dione
نویسندگان
چکیده
In the title compound, C(13)H(12)BrNO(4), the dihedral angles between the amino-methyl-ene group and the dioxane ring and between the benzyl ring and the amino-methyl-ene unit are 7.96 (4) and 12.15 (4)°, respectively. The dioxane ring shows a half-boat conformation, in which the C atom between the dioxane ring O atoms is 0.460 (8) Å out of the plane through the remaining ring atoms. An intra-molecular N-H⋯O hydrogen bond may stabilize the planar conformation of the mol-ecule. An inter-molecular C-H⋯O inter-action is also present.
منابع مشابه
5-(4-Fluorobenzylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione
The title compound, C(13)H(11)FO(4), was prepared by the reaction of 2,2-dimethyl-1,3-dioxane-4,6-dione and 4-fluoro-benz-alde-hyde in ethanol. The 1,3-dioxane ring adopts an envelope conformation. The crystal structure is stabilized by weak inter-molecular C-H⋯O hydrogen bonds.
متن کامل5-(4-Hydroxybenzylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione
The title compound, C(13)H(12)O(5), was prepared by the reaction of 2,2-dimethyl-1,3-dioxane-4,6-dione and 4-hy-droxy-benz-alde-hyde in ethanol. The 1,3-dioxane ring is in a distorted boat conformation. In the crystal, inversion dimers linked by pairs of O-H⋯O hydrogen bonds generate R(2) (2)(20) rings.
متن کامل5-(2-Fluorobenzylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione
The title compound, C(13)H(11)FO(4), was prepared by the reaction of 2,2-dimethyl-1,3-dioxane-4,6-dione and 2-fluoro-benzaldehyde in ethanol. In the crystal structure, mol-ecules are linked into chains by weak inter-molecular C-H⋯O hydrogen bonds.
متن کامل5-(3,4-Dimethylbenzylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione
The title compound, C(15)H(16)O(4), was prepared by the reaction of 2,2-dimethyl-1,3-dioxane-4,6-dione and 3,4-dimethyl-benzaldehyde in ethanol. The 1,3-dioxane ring exhibits an envelope conformation. In the crystal, mol-ecules are linked by weak inter-molecular C-H⋯O hydrogen bonds, forming chains parallel to the b axis.
متن کامل2,2-Dimethyl-5-(2,3,4-trimethoxybenzylidene)-1,3-dioxane-4,6-dione
The title compound, C(16)H(18)O(7), was prepared by the reaction of 2,2-dimethyl-1,3-dioxane-4,6-dione and 2,3,4-trimeth-oxy-benzaldehyde. The 1,3-dioxane ring is in a slightly distorted boat conformation. The crystal structure is stabilized by weak inter-molecular C-H⋯O hydrogen bonds.
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