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(Z)-Methyl 4-({3-[(2,5-dioxoimidazolidin-4-yl-idene)meth-yl]-1H-indol-1-yl}meth-yl)benzoate.

ABSTRACT: In the title compound, C(21)H(17)N(3)O(4), pairs of mol-ecules form a planar[maximum deviation 0.0566 (9) Å] centrosymmetric imidazole dimer via two N-H⋯O hydrogen bonds. These dimeric units are linked by further N-H⋯O hydrogen bonds between the ester carbonyl group and the imidazolidine ring, formiing chains parallel to the c-axis direction. In addition, there are π-π stacking inter-actions between the planar imidazole pairs, with an inter-planar spacing of 3.301 (2) Å. There is a double bond with Z geometry connecting the imidazolidine and indole units.

SUBMITTER: Penthala NR

PROVIDER: S-EPMC2967975 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Methyl 4-(5-meth-oxy-1H-indol-3-yl)benzoate.

Project description:In the title compound, C(17)H(15)NO(3), the dihedral angle between the benzene ring and the indole ring system is 22.5?(3)°. In the crystal, mol-ecules are linked by N-H?? and C-H?O inter-actions.

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2-Hy-droxy-5-[(E)-(1H-indol-3-yl-methyl-idene)aza-nium-yl]benzoate.

Project description:The zwitterionic title compound, C(16)H(12)N(2)O(3), was obtained as a result of the condensation of 5-amino-salicylic acid and 1H-indole-3-carbaldehyde. The whole mol-ecule is roughly planar: the 4-hy-droxy-anilinic group and the 1H-indole-3-carbaldehyde moieties are only slightly twisted, making a dihedral angle of 7.77?(11)°, whereas, the carboxyl-ate group makes a dihedral angle of 3.34?(45)° with the parent 4-hy-droxy-anilinic group. S(6) ring motifs are formed due to intra-molecular O-H?O hydrogen bonding. In the crystal, inter-molecular N-H?O and C-H?O hydrogen bonds build up pseudo-rings with R(1) (2)(4), R(2) (1)(7) and R(2) (2)(14) ring motifs. These pseudo-dimers are further linked by N-H?O hydrogen bonds into a chain extending along [101]. C-H?? inter-actions also occur, along with offset ?-? inter-actions between the anilinic phenyl and the heterocyclic five-membered rings with a centroid-centroid distance of 3.5716?(19)?Å.

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N-(1H-Indol-3-yl-methyl-idene)-4-methyl-piperazin-1-amine.

Project description:In the title compound, C14H18N4, the piperazine ring is in a slightly distorted chair conformation. The indole ring system is twisted from the piperazine ring, making a dihedral angle of 7.27?(11)°. In the crystal, N-H?N hydrogen bonds link mol-ecules into chains along [10-1].

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Methyl 2-meth-oxy-4-{[2-(4-nitro-phen-yl)hydrazinyl-idene]meth-yl}benzoate.

Project description:The mol-ecule of the title Schiff base compound, C(16)H(15)N(3)O(5), obtained from a condensation reaction of 4-acet-oxy-3-meth-oxy-benzaldehyde and 4-nitro-phenyl-hydrazine, adopts an E geometry with respect to the C=N double bond. The mol-ecule is roughly planar, with the two benzene rings twisted slightly with respect to each other by a dihedral angle of 6.90?(9)°. In the crystal, inter-molecular N-H?O hydrogen bonds link centrosymmetrically related pairs of mol-ecules, forming dimers of R(2) (2)(22) graph-set motif. The dimers are further connected through slipped ?-? inter-actions between symmetry-related benzene rings [centroid-centroid distance of 3.646?(1)?Å, offset angle of 15.4°].

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Project description:In the title compound, C(15)H(13)NO(4), the conjugated double-bond system between the two rings adopts a cis configuration and there is an intra-molecular indole-ketone C-H?O inter-action. The indole N-H group forms an inter-molecular hydrogen bond with a ketone O-atom acceptor, giving a chain structure along the ab direction. The O-heterocyclic ring adopts a boat conformation and makes a dihedral angle of 16.72?(6)° with the indole ring system.

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Ethyl 2-(5-meth-oxy-2-methyl-1H-indol-3-yl)acetate.

Project description:In the title compound, C14H17NO3, the nine-membered 1H-indole ring system is essentially planar [maximum deviation = 0.019?(1)?Å]. In the crystal, mol-ecules are linked via N-H?O hydrogen bonds, forming chains along [001]. These chains are linked via C-H?O hydrogen bonds and C-H?? inter-actions, forming a two-dimensional network lying parallel to the ac plane.

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5-Meth-oxy-1-[(5-meth-oxy-1H-indol-2-yl)meth-yl]-1H-indole.

Project description:In the title compound, C(19)H(18)N(2)O(2), the two indole ring systems are essentially planar [maximum deviation = 0.015 (2) Å in both indole ring systems] and make a dihedral angle of 72.17 (7)° with each other. In the crystal, the mol-ecules are linked into a zigzag chain along the a axis via N-H⋯O hydrogen bonds.

| S-EPMC3343946 | biostudies-literature

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