1,3-Dimethyl-5-(2-methylbenzylidene)pyrimidine-2,4,6(1H,3H,5H)-trione
نویسندگان
چکیده
منابع مشابه
5-(3,4-Dimethoxybenzylidene)-1,3-dimethyl-1,3-diazinane-2,4,6-trione
In the title compound, C(15)H(16)N(2)O(5), the dihedral angle between 1,3-diazinane and benzene rings is only 4.27 (1)°. The essentially planar mol-ecular structure is characterized by a short intra-molecular C-H⋯O separation and by an exceptionally large bond angle of 138.25 (14)° at the bridging methine C atom. The meth-oxy groups deviate somewhat from the plane of the benzene ring, with C-C-...
متن کامل1,3-Dimethyl-5-(2-methylbenzylidene)pyrimidine-2,4,6(1H,3H,5H)-trione
In the title compound, C(14)H(14)N(2)O(3), the dihedral angle between the pyrimidine and benzene rings is 14.9 (1)°. The mol-ecular structure is stabilized by weak intra-molecular C-H⋯O inter-actions and the crystal structure exhibits a weak inter-molecular π-π inter-action [centroid-centroid distance = 3.575 (3) Å].
متن کامل5-[1-(1,3-Dimethyl-2,4,6-trioxohexahydropyrimidin-5-yl)-2-oxopropyl]-1,3-dimethylpyrimidine-2,4,6(1H,3H,5H)-trione
The title compound, C15H18N4O7, is a product of the substitution reaction of 5,5-di-bromo-1,3-di-methyl-barbituric acid with sodium sulfide in aqueous acetone. In the crystal, mol-ecules display neither inter-molecular nor intra-molecular hydrogen bonding and the two barbiturate rings adopt the keto form.
متن کاملSynthesis, Crystal Structure and DFT Studies of 1,3-Dimethyl-5-propionylpyrimidine- 2,4,6(1H,3H,5H)-trione
Novel 1,3-Dimethyl-5-propionylpyrimidine-2,4,6(1H,3H,5H)-trione was synthesized and recrystallized from ethanol. The compound was characterized by 1H NMR, 13C NMR in CDCl3, DMSO-d6 and acetone-d6, elemental analysis and X-ray diffraction. The NMR data observed that the title compound exists in the enol tautomer rather than keto, and it stabilized by strong H-bond as observed form the NMR data a...
متن کاملCrystal structure of 5-[bis(methylsulfonyl)methyl]-1,3-dimethyl-5-(methylsulfonyl)pyrimidine-2,4,6(1H,3H,5H)-trione
In the title compound, C10H16N2O9S3, the pyrimidine ring of the 1,3-dimethyl barbituric acid moiety has an envelope conformation with the C atom carrying the methyl-sulfonyl and bis-(methyl-sulfon-yl)methyl substituents as the flap. The dihedral angle between mean plane of the pyrimidine ring and the S/C/S plane is 72.4 (3)°. In the crystal, mol-ecules are linked via C-H⋯O hydrogen bonds, formi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2009
ISSN: 1600-5368
DOI: 10.1107/s1600536809035521