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8,11,24-Trioxa-21-thia-19-aza-penta-cyclo-[16.6.0.0(2,7).0(12,17).0(19,23)]tetra-cosa-2(7),3,5,12,14,16-hexa-ene.

ABSTRACT: In the title compound, C19H19NO3S, the thia-zole and oxazolidine rings each adopt an envelope conformation, with the S and O atoms as the respective flap atoms. The thia-zole and oxazolidine rings (all atoms) make a dihedral angle of 66.39?(11)° while the phenyl rings subtend a dihedral angle of 22.71?(10)°.

SUBMITTER: Devi SK

PROVIDER: S-EPMC3685055 | biostudies-literature | 2013 Jun

REPOSITORIES: biostudies-literature

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8,11,24-Trioxa-21-thia-19-aza-penta-cyclo-[16.6.0.0(2,7).0(12,17).0(19,23)]tetra-cosa-2(7),3,5,12,14,16-hexa-ene.

Devi Seenivasan Karthiga SK Srinivasan Thothadri T Purushothaman Santhanagopalan S Raghunathan Raghavachary R Velmurugan Devadasan D

Acta crystallographica. Section E, Structure reports online 20130515 Pt 6

In the title compound, C19H19NO3S, the thia-zole and oxazolidine rings each adopt an envelope conformation, with the S and O atoms as the respective flap atoms. The thia-zole and oxazolidine rings (all atoms) make a dihedral angle of 66.39 (11)° while the phenyl rings subtend a dihedral angle of 22.71 (10)°. ...[more]

PMID: 23795074

Similar Datasets

8,13,26-Trioxa-23-thia-21-aza-penta-cyclo-[18.6.0.0(2,7).0(14,19).0(21,25)]hexa-cosa-2(7),3,5,14,16,18-hexa-ene.

Project description:In the title compound, C21H23NO3S, both the thia-zole and oxazolidine rings adopt twist conformations. The mean plane of the thia-zole ring makes a dihedral angle of 61.02 (7)° with the oxazolidine ring mean plane, and dihedral angles of 22.72 (6) and 75.07 (6)° with the benzene rings. The benzene rings are almost perpendicular to one another, making a dihedral angle of 89.14 (6)°. There are bifurcated intra-molecular C-H⋯O hydrogen bonds in the mol-ecular structure. In the crystal, mol-ecules are linked via C-H⋯π inter-actions, forming chains propagating along [100].

| S-EPMC3685049 | biostudies-literature

Crystal structure of (1RS,21SR,22RS,24SR)-28-oxo-24-propyl-8,11,14-trioxa-24,27-di-aza-penta-cyclo[19.5.1.1(22,26).0(2,7).0(15,20)]octa-cosa-2,4,6,15(20),16,18-hexa-ene acetic acid monosolvate.

Project description:The title compound, C26H32N2O4(M)·C2H4O2, (I), is the product of the Petrenko-Kritchenko condensation of N-propyl-piperidinone with 1,5-bis-(2-formyl-phen-oxy)-3-oxa-pentane and ammonium acetate. In M, the aza-14-crown-3-ether ring adopts a bowl conformation, with the configuration of the C-O-C-C -O-C-C-O-C polyether chain being t-g ((-))-t-t-g ((+))-t (t = trans, 180°; g = gauche, ±60°). The dihedral angle between the planes of the benzene rings fused to the aza-14-crown-4-ether moiety is 62.75 (5)°. The central piperidinone ring has a boat conformation, whereas the terminal piperidinone ring adopts a chair conformation. The boat conformation of the central piperidinone ring is supported by the bifurcated intra-molecular N-H⋯O hydrogen bond. In the crystal, each solvent mol-ecule is linked to mol-ecule M via strong O-H⋯N hydrogen bonding, forming hydrogen-bonded pairs of mol-ecules, which further inter-act through weak C-H⋯O hydrogen bonds, forming layers parallel to the ac plane.

| S-EPMC4908554 | biostudies-literature

Ethyl 8,13-dioxa-21-aza-penta-cyclo-[18.5.1.0(2,7).0(14,19).0(21,25)]hexa-cosa-2(7),3,5,14,16,18-hexa-ene-26-carboxyl-ate.

Project description:In the title compound, C26H31NO4, the five-membered rings of the central pyrrolizine system adopt N-envelope conformations. The ethyl acetate group adopts an extended conformation. The dihedral angle between the benzene rings is 36.6?(1)°. In the crystal, C-H?O hydrogen bonds form a zigzag chain running along the b-axis directions. The crystal structure is futher consolidated by C-H?? inter-actions.

| S-EPMC3588371 | biostudies-other

meso-(1S*,21R*)-25-Methyl-8,11,14-trioxa-22,24,25-triaza-tetra-cyclo-[19.3.1.0(2,7).0(15,20)]penta-cosa-2,4,6,15(20),16,18-hexa-ene-23-thione chloro-form monosolvate.

Project description:The title compound crystallizes as a chloro-form solvate, C(20)H(23)N(3)O(3)S·CHCl(3), with two crystallographically independent units. The independent units have distinctly different inter-action patterns between the aza-crown macrocycle and the chloro-form solvent mol-ecule. In one of them, the chloro-form mol-ecule forms C-H?N and Cl?H-C hydrogen bonds with the aza-crown macrocycle (as a proton donor and an acceptor, respectively), whereas in the other, one of the chloro-form mol-ecules is bound to the aza-crown macrocycle by an attractive Cl?O [3.080?(3)?Å] inter-action. The aza-crown macrocycles of different units are structurally similar; the aza-14-crown-3-ether ring adopts a bowl conformation with dihedral angles between the planes of the fused benzene rings of 60.7?(1) and 68.0?(1)°. The triazinane-thione ring in both cases has a sofa conformation. The crystal packing is characterized by N-H?S, N-H?O, C-H?Cl and C-H?S hydrogen bonds.

| S-EPMC3470208 | biostudies-literature

Ethyl 23-benzyl-8,11,14-trioxa-23,28,29-triaza-penta-cyclo-[19.7.1.0(2,7).0(15,20).0(22,27)]nona-cosa-2,4,6,15(20),16,18,21,26-octa-ene-26-carboxyl-ate.

Project description:The title compound, C33H35N3O5, is the product of the multicomponent condensation of 1-benzyl-4-eth-oxy-carbonyl-piperidin-3-one with 1,5-bis-(2-formyl-phen-oxy)-3-oxapentane and ammonium acetate. The mol-ecule comprises a penta-cyclic system containing the aza-14-crown-4-ether macrocycle, tetra-hydro-pyrimidine, tetra-hydro-pyridine and two benzene rings. The aza-14-crown-4-ether ring adopts a bowl conformation with a dihedral angle of 62.37 (5)° between the benzene rings. The tetra-hydro-pyrimidine ring has an envelope conformation with the chiral C atom as the flap, whereas the tetra-hydro-pyridine ring adopts a distorted chair conformation. Two amino groups are involved in intra-molecular N-H⋯O hydrogen bonds. In the crystal, weak C-H⋯O hydrogen bonds link the mol-ecules into layers parallel to the ab plane.

| S-EPMC3629615 | biostudies-literature

24-Acetyl-8,11,14-trioxa-24,27-diaza-penta-cyclo-[19.5.1.1(22,26).0(2,7).0(15,20)]octa-cosa-2,4,6,15(20),16,18-hexaen-28-one.

Project description:The title compound, C(25)H(28)N(2)O(5), is a product of the Petrenko-Kritchenko condensation of N-acetyl-piperidone with 1,5-bis-(2-formyl-phen-oxy)-3-oxapentane and ammonium acetate. The mol-ecule comprises a fused penta-cyclic system containing an aza-14-crown-3-ether macrocycle, two piperidone and two benzene rings. The aza-14-crown-3-ether ring adopts a bowl conformation. The dihedral angle between the benzene rings fused to the aza-14-crown-4-ether unit is 70.18 (4)°. The central piperidone ring has a boat conformation, whereas the terminal piperidone ring adopts a chair conformation. The conformation of the central piperidone ring is determined by two intra-molecular N-H⋯O hydrogen bonds. In the crystal, mol-ecules are linked by weak C-H⋯O inter-actions into chains along [010].

| S-EPMC3393972 | biostudies-literature

Crystal structure of 22,24,25-trimethyl-8,11,14-trioxa-25-aza-tetra-cyclo-[19.3.1.0<sup>2,7</sup>.0<sup>15,20</sup>]penta-cosa-2,4,6,15(20),16,18-hexaen-23-one.

Project description:The title compound, C24H29NO4, is the product of a Petrenko-Kritchenko condensation of 1,5-bis-(2-formyl-phen-oxy)-3-oxa-pentane, pentan-3-one and methyl-ammonium acetate in ethanol. The mol-ecule has mirror symmetry. The aza-14-crown-3 ether ring adopts a bowl conformation stabilized by a weak intra-molecular C-H⋯O hydrogen bond. The conformation of the C-O-C-C-O-C-C-O-C polyether chain is t-g+-t-t-g--t (t = trans, 180°; g = gauche, ±60°). The dihedral angle between the benzene rings fused to the aza-14-crown-4-ether moiety is 72.68 (4)°. The piperidinone ring adopts a chair conformation. The nitro-gen atom has a trigonal-pyramidal geometry, the sum of the bond angles being 335.9°. In the crystal, the mol-ecules are linked by weak C-H⋯O inter-actions, forming zigzag chains propagating along the [100] direction.

| S-EPMC5290547 | biostudies-literature

Dimethyl 2-[23-oxo-22,24-diphenyl-8,11,14-trioxa-25-aza-tetra-cyclo-[19.3.1.0(2,7).0(15,20)]penta-cosa-2,4,6,15(20),16,18-hexaen-25-yl]but-2-enedioate.

Project description:The title compound, C(39)H(37)NO(8), is a product of the Michael addition of the cyclic secondary amine subunit of aza-14-crown-4 ether to dimethyl acetyl-enedicarboxyl-ate. The piperidinone ring exhibits a distorted chair conformation and the dimethyl acetyl-enedicarboxyl-ate fragment has a cis configuration with a dihedral angle of 56.61 (5)° between the two carboxyl-ate groups. The crystal packing is stabilized by the weak C-H⋯O hydrogen bonds.

| S-EPMC3344514 | biostudies-literature

8-Phenyl-16-thia-penta-cyclo-[6.6.5.0(1,18).0(2,7).0(9,14)]nona-deca-2,4,6,9,11,13,18-hepta-ene.

Project description:In the title compound, C24H18S, the dihedral angles between the phenyl ring and the two benzene rings of the anthracene moiety are 51.92 (9) and 68.24 (9)°, whereas the dihedral angle between the two anthracene benzene rings is 120.13 (9)°. The three non-aromatic six-membered rings are in boat conformations, while the five-membered ring has an envelope conformation on the S atom. In the crystal, there are three C-H⋯π inter-actions, which facilitate the packing of the mol-ecules.

| S-EPMC3770424 | biostudies-literature

17-Hy-droxy-1,8-dimethyl-17-aza-penta-cyclo-[6.6.5.0(2,7).0(9,14).0(15,19)]nona-deca-2,4,6,9(14),10,12-hexa-ene-16,18-dione.

Project description:In the title compound, C20H17NO3 (alternative name: N-hy-droxy-9,10-dimethyl-9,10-ethano-anthracene-11,12-dicarboximide), the rigid ethano-anthracene-dicarboximide moiety has a roof-shaped geometry, the inter-planar angle between the two terminal phenyl rings being 124.9?(6)°. In the crystal, mol-ecules are linked via O-H?O hydrogen bonds, forming chains along [010]. C-H?O and C-H?? inter-actions link adjacent chains, leading to the formation of a three-dimensional structure.

| S-EPMC3588838 | biostudies-other

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