Results 11 to 20 of about 9,315,415 (239)
Molbank, 2022 The 1,4-dihydropyridine is a ubiquitous scaffold employed not only in medicinal chemistry but also in organic synthesis, given its ability to act as a hydrogen transfer reagent, thus emulating NAD(P)H reducing agents.
Carlotta Borgarelli +3 more
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Diethyl 4-(4-acetamidophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate [PDF]
Acta Crystallographica Section E, 2012 The title compound, C21H26N2O5, was unexpectedly obtained as a by-product in the reaction of ethyl acetoacetate, 4-acetamidobenzaldehyde and urea under microwave irradiation. The dihydropyridine ring assumes a flattened boat conformation.
Yiliang Zhao +3 more
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Dimethyl 4-(4-formylphenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate
Acta Crystallographica Section E, 2008 The title compound, C18H19NO5, is a product of the Hantzsch reaction of p-phthalaldehyde, methyl acetoacetate, and ammonium acetate. The 1,4-dihydropyridine ring of the molecule adopts a flattened boat conformation.
Fei Teng, Fanpeng Kong, Qingjian Liu
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Diethyl 4-[4-(dimethylamino)phenyl]-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate
Acta Crystallographica Section E, 2010 In the title compound, C21H28N2O4, the dihydropyridine ring adopts a flattened boat conformation. The mean plane of the dihydropyridine ring and the attached benzene ring form a dihedral angle of 85.1 (1) Å.
Ming-Sheng Bai +4 more
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Dimethyl 4-(4-ethoxyphenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate
Acta Crystallographica Section E, 2009 In the title molecule, C19H23NO5, the dihedral angle formed by the benzene ring and the planar part of the dihydropyridine ring is 83.52 (5)°. The dihydropyridine ring adopts a flattened boat conformation. In the crystal, molecules are
Hoong-Kun Fun +4 more
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4-Oxo-N-phenyl-1,4-dihydropyridine-3-carboxamide
IUCrData, 2023 The title compound, C12H10N2O2, shows a nearly planar conformation. The crystal structure is sustained by hydrogen bonds between the NH and the carbonyl O function of the 4-oxo-1,4-dihydropyridine ring of the molecules, forming infinite chains along the ...
Xi Shu, Sihui Long
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New Organocatalytic Asymmetric Synthesis of Highly Substituted Chiral 2-Oxospiro-[indole-3,4′- (1′,4′-dihydropyridine)] Derivatives [PDF]
Molecules, 2015 Herein, we report our preliminary results concerning the first promising asymmetric synthesis of highly functionalized 2-oxospiro-[indole-3,4′-(1′,4′-dihydropyridine)] via the reaction of an enamine with isatylidene malononitrile derivatives in the ...
Fernando Auria-Luna +4 more
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Diethyl 2,6-dimethyl-4-(4-pyridyl)-1,4-dihydropyridine-3,5-dicarboxylate
Acta Crystallographica Section E, 2010 In the title compound, C18H22N2O4, the dihedral angle between the two rings is 87.90 (6)°. The mean devation of the atoms in the dihydropyridine plane is 0.082 (3) Å. In the crystal, molecules are linked by
Yumei Li
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Molbank, 2011 One-pot two-step Hantzsch synthesis of 4-(3,5-dibromo-4-hydroxyphenyl)-3- butoxycarbonyl-5-ethoxycarbonyl-2-methyl-6-phenyl-1,4-dihydropyridine under solvent- and catalyst-free conditions promoted with microwave irradiation is presented.
Zhen Wang, Qingjian Liu
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مجلة علوم ذي قار, 2023 A series of 2-oxo-6-[4-(1H-tetrazol-1-yl) phenyl-1,2-dihydropyridine-3-carbonitrile 3,4-dimethoxyphenyl)-2-oxo-6-4-(1H-tetrazol-1-yl) phenyl]-1,2-dihydropyridine-3-carbonitrile and 2-oxo-6-[4-(1H-tetrazol-1-yl) phenyl]-4-(thiophen-2-yl)- 1,2 ...
Athraa Hamed Mekky +5 more
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