2-Benzoyl-2H-1,4-benzothiazin-3(4H)-one
نویسندگان
چکیده
In the title compound, C(15)H(11)NO(2)S, the dihedral angle between the aromatic rings is 80.35 (7)°. The heterocyclic six-membered ring is not planar: the puckering parameters of this ring are Q = 0.5308 (15) Å, θ = 63.11 (18) and ϕ = 23.5 (2)°. The mol-ecules are linked into inversion dimers with R(2) (2)(8) ring motifs by pairs of N-H⋯O hydrogen bonds. The dimers are inter-linked into polymeric sheets extending parallel to the bc plane by C-H⋯O hydrogen bonds, generating R(2) (1)(7) ring motifs. π-π inter-actions occur between the benzoyl phenyl rings with centroid-centroid separations of 3.9187 (15) Å.
منابع مشابه
2-(4-Chlorobenzoylmethyl)-2H-1,4-benzothiazin-3(4H)-one
The six-membered heterocyclic ring in the title compound, C(16)H(12)ClNO(2)S, exists in a conformation intermediate between twist-boat and chair. A one-dimensional chain structure is formed as a result of inter-molecular N-H⋯O and C-H⋯O hydrogen bonds via crystallographic inversion symmetry and translation along the a axis.
متن کاملQuantitation of 1,4-Benzoxazin-3-ones in Maize by Gas-Liquid Chromatography.
A gas-liquid chromatographic (GLC) procedure is reported for the quantitation of the trimethylsilyl (TMS) derivatives of substituted 2-hydroxy-2H-1,4-benzoxazin-3(4H)-ones (2-hydroxy-2H-1,4-benzoxazin-3(4H)-one[HBOA]; 2-hydroxy-7-methoxy-2H-1,4-benzoxazin-3(4H)-one[HMBOA];2,4- dihydroxy-2H-1,4-benzoxazin-3(4H)-one[DIBOA]; 2,4-dihydroxy-7-methoxy-2H-1,4-benzoxazin-3(4H)-one[DIMBOA]; and 2,4-dihy...
متن کاملIdentification of 1,4-Benzoxazin-3-ones in Maize Extracts by Gas-Liquid Chromatography and Mass Spectrometry.
Gas-liquid chromatography-mass spectrometry (GLC-MS) has been used for the separation, detection, and identification of 1,4-benzoxazin-3-ones (hydroxamic acids and lactams) and benzoxazolinones found in maize (Zea mays L.) extracts. Compounds of interest were partitioned into ethyl acetate from aqueous maize seedling extracts. For analysis by GLC-MS, trimethylsilyl derivatives were prepared, ch...
متن کاملAn efficient cascade synthesis of various 2H-1,4-benzoxazin-3-(4H)-ones from o-halophenols and 2-halo-amides catalyzed by CuI.
A novel and efficient one-pot cascade synthesis of 2H-1,4-benzoxazin-3-(4H)-ones has been developed through copper-catalyzed coupling of o-halophenols and 2-halo-amides. Various 2H-1,4-benzoxazin-3-(4H)-ones with diversity at three substituents on their scaffold have been synthesized conveniently in good to excellent yields.
متن کامل4-(1H-Benzimidazol-2-ylmethyl)-2H-1,4-benzothiazin-3(4H)-one
In the title compound, C(16)H(13)N(3)OS, the thio-morpholine ring exists in a screw boat conformation. The angle between the benzimidazole ring system and the benzene ring fused to the thia-zine ring is 67.22 (6)°. In the crystal, mol-ecules form infinite chains along the a axis via inter-molecular N-H⋯N inter-actions. C-H⋯π inter-actions also contribute to the stability of the crystal structure.
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عنوان ژورنال:
دوره 66 شماره
صفحات -
تاریخ انتشار 2010