Diethyl 4-(4,5-dihydrofuran-2-yl)-3,5-dimethyl-1-phenyl-1,4-dihydropyrazine-2,6-dicarboxylate
نویسندگان
چکیده
منابع مشابه
Diethyl 2,6-dimethyl-4-(5-phenyl-1H-pyrazol-4-yl)-1,4-dihydropyridine-3,5-dicarboxylate
In the title compound, C(22)H(25)N(3)O(4), the dihydro-pyridine ring adopts a flattened boat conformation. The pyrazole ring makes a dihedral angle of 29.04 (5)° with the benzene ring. The mol-ecular structure is stabilized by an intra-molecular C-H⋯O hydrogen bond which generates an S(9) ring motif. In the crystal, mol-ecules are linked via N-H⋯O and C-H⋯N hydrogen bonds into a two-dimensional...
متن کاملDiethyl 4-(4,5-dihydrofuran-2-yl)-3,5-dimethyl-1-phenyl-1,4-dihydropyrazine-2,6-dicarboxylate
In the title compound, C(22)H(26)N(2)O(5), the central 1,4-dihydro-pyrazine ring adopts a boat conformation, while the benzene ring and the two disordered components of the furan ring are inclined at angles of 77.9 (5) and 61.9 (7)°. Three of the C atoms of the furan ring are disordered over two positions with occupancies of 0.655 (18) and 0.345 (18). In the crystal structure, weak inter-molecu...
متن کاملDiethyl 2-[(3,5-dimethyl-1H-pyrazol-1-yl)(4-methoxyphenyl)methyl]propanedioate
The title compound, C(20)H(26)N(2)O(5), was prepared in good yield (76%) through condensation of diethyl (4-meth-oxy-benz-yl)propane-dioate with 3,5-dimethyl-1H-pyrazole. The dihedral between the benzene and pyrazole rings is 83.96 (10)°. The crystal packing is stabilized by a C-H⋯O inter-action, which links the mol-ecules into centrosymmetric dimers.
متن کاملCrystal structure of diethyl 2-acet-oxy-2-[3-(4-nitro-phen-yl)-3-oxo-1-phenyl-prop-yl]malonate.
In the racemic title compound, C24H25NO9, the dihedral angle between the planes of the two benzene-ring systems is 80.16 (6)°, while the side-chain conformation is stabilized by a methyl-ene-carboxyl C-H⋯O hydrogen bond. Weak inter-molecular C-H⋯O hydrogen bonds form inversion dimers [graph set R 2 (2)(16)] which are linked into chains extending along a. Further C-H⋯O hydrogen bonding extends t...
متن کاملDiethyl 2-amino-5-[(E)-(1-methyl-1H-pyrrol-2-yl)methylideneamino]thiophene-3,4-dicarboxylate
The structure of the title compound, C(16)H(19)N(3)O(4)S, shows the planes described by the thio-phene and the pyrroles are twisted by 17.06 (4)°. Additionally, the structure shows the azomethine bond adopts the E configuration, while the pyrrole is disordered as a heterocycle flip [occupancy ratio 0.729 (5):0.271 (5)]. The three-dimensional network is well packed and involves N-H⋯O hydrogen bo...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2009
ISSN: 1600-5368
DOI: 10.1107/s1600536809013749