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2-[(4-Chloro-phen-yl)(hy-droxy)meth-yl]-5,5-dimethyl-1,3,2-dioxaphosphinan-2-one.

ABSTRACT: In the title compound, C(12)H(16)ClO(4)P, the phospho-nate ring adopts a chair conformation. In the crystal, intermolecular O-H⋯O hydrogen bonds link the molecules into chains propagating along the b axis.

SUBMITTER: Wang C

PROVIDER: S-EPMC3099943 | biostudies-literature |

REPOSITORIES: biostudies-literature

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(S)-2-[(2,4-Dichloro-phen-yl)(hy-droxy)meth-yl]-5,5-dimethyl-1,3,2-dioxa-phosphinane 2-oxide.

Project description:In the title mol-ecule, C(12)H(15)Cl(2)O(4)P, the cyclic dioxaphosphinane ring adopts a chair conformation. In the crystal, inter-molecular O-H?O hydrogen bonds link the mol-ecules into chains propagating along the b axis.

| S-EPMC3100063 | biostudies-literature

3-Hy-droxy-2-[(2-hy-droxy-4,4-dimethyl-6-oxocyclo-hex-1-en-1-yl)(3-nitro-phen-yl)meth-yl]-5,5-dimethyl-cyclo-hex-2-en-1-one.

Project description:Each of the cyclohexenone rings in the title compound, C(23)H(27)NO(6), adopts a half-chair (envelope) conformation with the C atom carrying the methyl groups lying out of the plane defined by the five remaining C atoms; the O atoms lie to the same side of the mol-ecule as the respective >C(CH(3))(2) atoms. The hy-droxy and carbonyl O atoms face each other and are orientated to allow for the formation of two intra-molecular O-H?O hydrogen bonds. In the crystal, the presence of C-H?O contacts leads to the formation of supra-molecular chains along the b axis. These aggregate into layers that stack along c.

| S-EPMC3009059 | biostudies-literature

3-Hy-droxy-2-[(4-hy-droxy-3,5-dimeth-oxy-phen-yl)(2-hy-droxy-4,4-dimethyl-6-oxo-cyclo-hex-1-en-1-yl)meth-yl]-5,5-dimethyl-cyclo-hex-2-en-1-one.

Project description:In the title compound, C(25)H(32)O(7), the 3-hy-droxy-5,5-dimethyl-cyclo-hex-2-enone rings adopt slightly distorted envelope conformations with the two planes at the base of the envelope forming dihedral angles of 57.6?(4) and 53.9?(9)° with the benzene ring. There is an intra-molecular hy-droxy-ketone O-H?O inter-action between the two substituted cyclo-hexane rings as well as a short intra-molecular phenol-meth-oxy O-H?O inter-action.

| S-EPMC3051563 | biostudies-literature

2,2'-[(3-Bromo-4-hy-droxy-5-meth-oxy-phen-yl)methyl-idene]bis-(3-hy-droxy-5,5-dimethyl-cyclo-hex-2-en-1-one).

Project description:In the title compound, C(24)H(29)BrO(6), the dihedral angle between the cyclo-hexenone mean planes is 57.63?(2)° while the dihedral angles between the benzene ring and the cyclo-hexenone mean planes are 58.42?(2) and 69.08?(3)°. The two cyclo-hexenone rings both show an envelope conformation, with the C atom bearing two methyl groups as the flap atom in each ring. Two intra-molecular O-H?O hydrogen bonds occur. In the crystal, molecules are linked via pairs of O-H?O hydrogen bonds, forming inversion dimers.

| S-EPMC3470230 | biostudies-literature

2-[(2-Chloro-phen-yl)(hy-droxy)meth-yl]phenol.

Project description:In the title compound, C13H11ClO2, the dihedral angle between the mean planes of the 2-chloro-phenyl and phenol rings is 87.4?(9)°. The methyl hy-droxy group lies nearly perpendicular to the plane of its attached benzene ring [O-C-C-C torsion angle = 84.3?(3)°]. The two hy-droxy groups lie on the same side of the mol-ecule and are in a slightly twisted gauche conformation [O-C-C-O torsion angle = 77.1?(8)°] to each other. In the crystal, O-H?O hydrogen bonds between nearby methyl-hydroxy groups form dimers in alternating pairs aligned diagonally along the b axis. A view along the c axis reveals a hexa-meric aggregate mediated by a ring of six O-H?O hydrogen bonds generating an R 6 (6)(12) motif loop.

| S-EPMC3793743 | biostudies-literature

rac-4-Chloro-2-[({2-[(3-chloro-6-hy-droxy-2,4-dimethyl-benz-yl)(meth-yl)amino]-prop-yl}(meth-yl)amino)-meth-yl]-3,5-dimethyl-phenol.

Project description:The title compound, C(23)H(32)Cl(2)N(2)O(2), a potential chiral ligand for coordination chemistry, was prepared by a two-step reaction. The mol-ecule is located on a crystallographic centre of inversion. As a result, the methyl group bonded to the methyl-ene group is disordered over two equally occupied positions, sharing the same site as the H atom of the chiral C atom. As a further consequence of the crystallographic centrosymmetry, the 1,2-diamino-propane unit adopts an anti-periplanar conformation and the two benzene rings are coplanar. The central chain is in an all-trans arrangement. An intra-molecular O-H?N hydrogen bond makes an S(6) ring motif. A C-H?? inter-action links the mol-ecules into one-dimensional chains along the [001] direction.

| S-EPMC3470356 | biostudies-literature

(E)-Methyl 3-(4-chloro-phen-yl)-2-{2-[(E)-(hy-droxy-imino)-meth-yl]phen-oxy-meth-yl}acrylate.

Project description:In the title compound, C(18)H(16)ClNO(4), the dihedral angle between the mean planes through the aromatic rings is 83.8?(8)°. The hy-droxy-ethanimine group is essentially coplanar with the ring to which it is attached [O-N-C-C torsion angle = -177.96?(13)°]. The mol-ecules are linked into centrosymmetric R(2) (2)(6) dimers via O-H?N hydrogen bonds. The crystal packing is further stabilized by C-H?O inter-actions.

| S-EPMC3201559 | biostudies-literature

(E)-3-(4-Hy-droxy-3-meth-oxy-phen-yl)-1-(4-hy-droxy-phen-yl)prop-2-en-1-one.

Project description:In the title compound, C16H14O4, there is an intra-molecular O-H?O hydrogen bond. The benzene rings are inclined to one another by 13.89?(9)°. The prop-2-en-1-one group is twisted slightly, the O=C-Car-Car (ar = aromatic) and C=C-C=O torsion angles being -10.4?(3) and -7.4?(3)°, respectively. In the crystal, mol-ecules are linked by O-H?O hydrogen bonds, forming chains along [100]. These chains are further linked by O-H?O hydrogen bonds, forming corrugated sheets lying parallel to (010). There are C-H?? inter-actions present within the sheets.

| S-EPMC4011235 | biostudies-literature

rac-4-[4-Cyano-2-(hy-droxy-meth-yl)phen-yl]-4-(4-fluoro-phen-yl)-4-hy-droxy-N,N-dimethyl-butanaminium hemifumarate.

Project description:In the title salt, C(20)H(24)FN(2)O(2) (+)·0.5C(4)H(2)O(4) (2-), the fumarate anion is located on an inversion centre. In the cation, the two benzene rings are nearly perpendicular to each other, making a dihedral angle of 87.41?(10)°. The cation is linked to the anion by a bifurcated N-H?O hydrogen bond. Classical O-H?O and weak C-H?F hydrogen bonding is also present in the crystal structure. Three C atoms of the N,N-dimethyl-butanaminium moiety are disordered over two sites with refined site occupancies of 0.466?(14) and 0.534?(14).

| S-EPMC3051490 | biostudies-literature

2-[(4-Chloro-phen-yl)(2-hy-droxy-5-oxo-cyclo-pent-1-en-1-yl)meth-yl]-3-hy-droxy-cyclo-pent-2-en-1-one.

Project description:There are two mol-ecules in the asymmetric unit of the title compound, C(17)H(15)ClO(4), in which the dihedral angles between the five-membered rings are 57.3?(1) and 51.4?(1)°. An intra-molecular O-H?O hydrogen bond occurs in each mol-ecule. In the crystal, O-H?O and C-H?O hydrogen bonds link the moleclues into chains along the b axis.

| S-EPMC3379264 | biostudies-literature

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