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(7R,8S,8aS)-8-Hydr-oxy-7-phenyl-perhydro-indolizin-3-one.

ABSTRACT: In the title compound, C(14)H(17)NO(2), the six-membered ring of the indolizine system adopts a chair conformation. In the crystal, mol-ecules form chains parallel to the b axis via inter-molecular O-H?O hydrogen bonds. The absolute mol-ecular configuration was assigned from the synthesis.

SUBMITTER: Svorc L

PROVIDER: S-EPMC2969627 | biostudies-literature | 2009 May

REPOSITORIES: biostudies-literature

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(7R,8S,8aS)-8-Hydr-oxy-7-phenyl-perhydro-indolizin-3-one.

Svorc Lubomír L Vrábel Viktor V Marchalín Stefan S Safář Peter P Kožíšek Jozef J

Acta crystallographica. Section E, Structure reports online 20090523 Pt 6

In the title compound, C(14)H(17)NO(2), the six-membered ring of the indolizine system adopts a chair conformation. In the crystal, mol-ecules form chains parallel to the b axis via inter-molecular O-H⋯O hydrogen bonds. The absolute mol-ecular configuration was assigned from the synthesis. ...[more]

PMID: 21583218

Similar Datasets

(7R,8R,8aS)-8-Hydr-oxy-7-phenyl-per-hydro-indolizin-3-one.

Project description:The absolute configuration of the title compound, C(14)H(17)NO(2), was assigned from the synthesis. There are two mol-ecules in the asymmetric unit. Their geometries are very similar and corresponding bond lengths are almost identical [mean deviation for all non-H atoms = 0.015 (2) Å]. The six-membered ring of the indolizine system adopts a chair conformation. In the crystal structure, mol-ecules form chains parallel to the a axis via inter-molecular O-H⋯O hydrogen bonds, which help to stabilize the crystal structure.

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(6S,7S,8S,8aS)-6-Ethyl-7,8-dihy-droxy-1,5,6,7,8,8a-hexa-hydro-indolizin-3(2H)-one monohydrate.

Project description:The absolute configuration of the title compound, C(10)H(17)NO(3)·H(2)O, was assigned from the synthesis. In the mol-ecular structure, the central six-membered ring of the indolizine moiety adopts a chair conformation, with two atoms displaced by -0.578?(2) and 0.651?(1)?Å from the plane of the other four atoms [maximum deviation 0.019?(2)?Å] The conformation of the fused oxopyrrolidine ring is close to that of a flat envelope, with the flap atom displaced by 0.294?(1)?Å from the plane through the remaining four atoms. In the crystal, one of the hy-droxy groups is hydrogen-bonded to two water mol-ecules, while the other hy-droxy group exhibits an inter-molecular hydrogen bond to the carbonyl O atom, resulting in a chain parallel to the b axis.

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(3aR,8aS,9S,9aR)-9-Hydroxy-perhydro-furo[3,2-f]indolizin-6-one.

Project description:In the title compound, C(10)H(15)NO(3), the central six-membered ring of the indolizine system adopts a chair conformation, while the oxopyrrolidine and hydro-furan rings attached to the indolizine ring system have envelope conformations. In the crystal, the mol-ecules form chains parallel to the b axis via inter-molecular O-H?O hydrogen bonds. The absolute configuration was assigned from the synthesis.

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(4aS,5R,7R,8S,8aR)-8-(1,3-Dioxolan-2-yl)-7,8-dimethyl-5-(1-methyl-ethen-yl)perhydro-naphthalen-2-one.

Project description:In the chiral title compound, C(18)H(28)O(3), the two six-membered rings of the perhydronaphthalenone adopt a rigid chair-chair conformation and the five-membered dioxolanyl ring adopts an envelope conformation. The crystal structure is stabilized only by weak inter-actions.

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(5S*,6R*,7R*)-6-Formyl-5-phenyl-7-propyl-perhydro-pyrazolo[1,2-a]pyrazol-1-one.

Project description:The title compound, C(16)H(20)N(2)O(2), was obtained by catalytic asymmetric cyclo-addition of trans-3-propyl-acrolein with 1-benzyl-idenepyrazolid-3-one betaine. There are two symmetry-independent mol-ecules in the asymmetric unit. In both mol-ecules, the two five-membered heterocyclic rings adopt envelope conformations.

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8-Hydr-oxy-5,6,7-trimeth-oxy-2-phenyl-4H-chromen-4-one.

Project description:In the title compound, C(18)H(16)O(6), the benzopyran group is essentially planar, with the O atoms of the substituent groups lying close to its mean plane. The mol-ecular conformation is governed by intra-molecular inter-actions. The crystal packing is mainly determined by one classical inter-molecular hydrogen bond which gives rise to the formation of an infinite chain along the a axis.

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Project description:In the mol-ecular structure of the title compound, C(10)H(11)NOS, the central six-membered ring of the indolizine unit adopts an envelope conformation, the maximum deviations from the mean plane of the ring being 0.533 (2) Å. The fused thieno ring is nearly coplanar [mean deviation = 0.007 (2) Å]. The conformation of the fused oxopyrrolidine ring is close to that of a flat-envelope, with a maximum deviation of 0.339 (3) Å. The crystal structure is stabilized by C-H⋯O hydrogen bonds.

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(4R,6S,7S,8S,8aS)-6-Ethyl-7,8-dihy-droxy-4-methyl-1,2,3,5,6,7,8,8a-octa-hydro-indolizin-4-ium iodide.

Project description:The title compound, C(11)H(22)NO(2) (+)·I(-), is a chiral mol-ecule with five stereogenic centres. The absolute configuration was assigned from the synthesis and confirmed by the structure determination. The central six-membered ring of the indolizine system adopts a chair conformation, with two atoms displaced by -0.690 (2) and 0.550 (2) Å from the plane of the other four atoms. The conformation of the pyrrolidine ring is close to that of an envelope, with the flap atom displaced by 0.563 (2) Å from the plane of the remaining four atoms. In the crystal, there are two O-H⋯I hydrogen bonds.

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3-Hydr-oxy-3-phenyl-isoindolin-1-one 0.33-hydrate.

Project description:The asymmetric unit of the title compound, C(14)H(11)NO(2)·0.33H(2)O, contains three 3-hydr-oxy-3-phenyl-isoindolin-1-one (HPIO) mol-ecules and one water mol-ecule. The three independent HPIO mol-ecules differ in the orientations of hydr-oxy and phenyl groups substituted at the 3-position with respect to the planar [r.m.s. deviations of 0.0173, 0.0170 and 0.0102?Å] dihydro-isoindolin-1-one ring system. In the crystal structure, mol-ecules are linked into a three-dimensional network by O-H?O, N-H?O and C-H?O hydrogen bonds.

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3-Hydr-oxy-3a,6,8c-trimethyl-perhydro-oxireno[2',3':7,8]naphtho[1,2-b]furan-7(2H)-one.

Project description:The title compound, C(15)H(22)O(4), consists of two trans-fused six-membered rings and a trans-fused five-membered ?-lactone. The ep-oxy and hydroxyl groups are ?-oriented. The cyclo-hexane rings adopt half-chair and chair conformations and the lactone ring is in an envelope conformation. The mol-ecular structure is stabilized by one O-H?O and three C-H?O intra-molecular hydrogen bonds.

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