Synthesis of Phosphorus, Arsenic and Antimony Ylides Containing the 1,3- Dimethyl-2,4,6(1H,3H,5H)-pyrimidinetrione Fragments
نویسندگان
چکیده
The ylides Ph3E-C6H6N2O3 (7, E = P (a), As (b), Sb (c)) have been prepared through the reaction of Ph3E and 5bromo-1,3-dimethyl-2,4,6(1H,3H,5H)-pyrimidinetrione (5-bromo-1,3-dimethylbarbituric acid) 6 in the presence of triethylamine. Their characterisation was performed by nuclear magnetic resonance (NMR), mass spectrometry (MS) and elemental analysis.
منابع مشابه
5-(1-Hydroxyethylidene)-1,3-dimethylpyrimidine-2,4,6(1H,3H,5H)-trione and four amino derivatives.
In the structures of 5-(1-hydroxyethylidene)-1,3-dimethylpyrimidine-2,4,6(1H,3H,5H)-trione, C8H10N2O4, (I), 1,3-dimethyl-5-[1-(propylamino)ethylidene]pyrimidine-2,4,6(1H,3H,5H)-trione, C11H17N3O3, (II), and 5-[1-(2,2-dimethoxyethylamino)ethylidene]-1,3-dimethylpyrimidine-2,4,6(1H,3H,5H)-trione, C12H19N3O5, (III), there are no direction-specific intermolecular interactions. The molecules in 5-[1...
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 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 کاملPhenobarbital and Its Sodium Salt
Chem. Abstr. Serv. Reg. No.: 57-30-7 Deleted CAS Reg. Nos: 125-36-0; 8050-96-2 Chem. Abstr. Name: 5-Ethyl-5-phenyl-2,4,6(1H,3H,5H)-pyrimidinetrione, monosodium salt IUPAC Systematic Name: 5-Ethyl-5-phenylbarbituric acid, sodium salt Synonyms: 5-Ethyl-5-phenylbarbituric acid sodium; phenobarbital sodium; phenobarbitone sodium; sodium ethylphenylbarbiturate; sodium 5-ethyl-5-phenylbarbiturate; so...
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 کامل