Dimethyl 2,6-dihydroxybenzene-1,4-dicarboxylate
نویسندگان
چکیده
The title compound, C(10)H(10)O(6), was obtained from an esterification reaction of 2,6-dihydroxy-terephthalic acid and methanol. In the mol-ecular structure, all of the C atoms are nearly coplanar. The two hydr-oxy groups have C2 symmetry. Intra-molecular O-H⋯O hydrogen bonds are observed. In the crystal, weak O-H⋯O inter-actions link the mol-ecules.
منابع مشابه
Dimethyl 2,6-dimethyl-4-(2-nitrophenyl)pyridine-3,5-dicarboxylate
The title compound, C(17)H(16)N(2)O(6), is a decomposition product of the hypertension drug nifedipine [systematic name: dimethyl 2,6-dimethyl-4-(2-nitro-phen-yl)-1,4-dihydro-pyridine-3,5-dicarboxyl-ate]. The dihedral angle between the nitro-sophenyl ring and the pyridine ring is 67.1 (5)°.
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In the title compound, C(20)H(21)N(3)O(4), the 1,4-dihydro-pyridine ring adopts a boat conformation. An intra-molecular C-H⋯O hydrogen bond generates an S(6) ring motif. The pyrazole ring makes dihedral angles of 87.81 (7) and 45.09 (7)° with the mean plane of the 1,4-dihydro-pyridine ring and the phenyl ring, respectively. In the crystal, mol-ecules are linked by N-H⋯N, N-H⋯O and C-H⋯O hydroge...
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In the title compound, C23H27N3O4, the dihydro-pyridine ring adopts a (1,4)B conformation. Intra-molecular C-H⋯O contacts occur. In the crystal, N-H⋯O and N-H⋯N hydrogen bonds and C-H⋯N contacts connect the mol-ecules into strands along the a-axis direction.
متن کاملDimethyl 2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate
In the crystal of the title compound, C(11)H(15)NO(4), the mol-ecules are linked into sheets by N-H⋯O and C-H⋯O hydrogen bonds. Within the mol-ecule, the 1,4-dihydro-pyridine ring exhibits a distinctive planar conformation [r.m.s. deviation from the mean plane of 0.009 (3)Å], and the other non-H atoms are almost coplanar [r.m.s. deviation = 0.021 (3) Å] with the 1,4-dihydro-pyridine ring. The c...
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In the title compound, C(20)H(25)NO(4), the 1,4-dihydro-pyridine ring adopts a flattened-boat conformation and forms a dihedral angle of 89.77 (8)° with the benzene ring. Inter-molecular N-H⋯O hydrogen bonds result in the formation of extended chains parallel to the b axis.
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