4-Hydroxy-3-(3-methoxybenzoyl)-2-[(3-methoxybenzoyl)methyl]-2H-1,2-benzothiazine 1,1-dioxide
نویسندگان
چکیده
In the title compound, C(25)H(21)NO(7)S, the heterocyclic thia-zine ring adopts a half-chair conformation, with the S and N atoms displaced by -0.284 (3) and 0.411 (3) Å, respectively, from the plane formed by the remaining ring atoms; the puckering parameters are: Q = 0.4576 (13) Å, θ = 58.6 (2) and ϕ = 34.3 (3)°. The structure is devoid of any classical hydrogen bonds. However, intra-molecular C-H⋯N and O-H⋯O hydrogen bonds result in six-membered rings and inter-molecular C-H⋯O inter-actions stabilize the crystal structure.
منابع مشابه
N′-[(E)-1-(4-Bromophenyl)ethylidene]-4-hydroxy-2-methyl-1,1-dioxo-2H-1,2-benzothiazine-3-carbohydrazide
The six-membered heterocycle in the title compound, C(18)H(16)BrN(3)O(4)S, adopts a sofa conformation. Intra-molecular N-H⋯N and O-H⋯O hydrogen bonds stabilize the mol-ecular conformation by forming a five- and a six-membered ring, respectively. The crystal packing is stabilized by inter-molecular C-H⋯O hydrogen bonds.
متن کاملMethyl 2-butyl-4-hydroxy-1,1-dioxo-2H-1,2-benzothiazine-3-carboxylate
In the title compound, C(14)H(17)NO(5)S, the thia-zine ring adopts a half-chair conformation. The mol-ecule exhibits an intra-molecular O-H⋯O hydrogen bond, which forms a six-membered S(6) ring motif. The planes of the benzene and thia-zine rings are inclined at a dihedral angle of 15.30 (12)°.
متن کاملMethyl 4-acetoxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide
In the title compound, C(13)H(13)NO(6)S, the thia-zine ring adopts a distorted half-chair conformation. Each mol-ecule is linked to its neighbour through inter-molecular C-H⋯O hydrogen bonds.
متن کامل4-Hydroxy-2-[(4-iodobenzoyl)methyl]-3-(3-methoxybenzoyl)-2H-1,2-benzothiazine 1,1-dioxide
In the title mol-ecule, C(24)H(18)INO(6)S, the heterocyclic thia-zine ring adopts a half-chair conformation, with the S and N atoms displaced by 0.381 (5) and -0.449 (5) Å, respectively, from the plane formed by the remaining atoms in the ring; the puckering parameters are Q = 0.550 (2) Å, θ = 61.7 (2)° and ϕ = 31.4 (3)°. The conformation is stabilized by an intra-molecular O-H⋯O hydrogen bond....
متن کاملN-[2-(Aminocarbonyl)phenyl]-4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide
In the title compound, C(17)H(15)N(3)O(5)S, the thia-zine ring adopts a distorted half-chair conformation. The mol-ecular structure is stabilized by intra-molecular N-H⋯O, N-H⋯N and O-H⋯O hydrogen bonding. Pairs of mol-ecules are bound together as centrosymmetric dimers through N-H⋯O hydrogen bonds.
متن کامل