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N,N-Bis-(2,6-di-methyl-phen-yl)-N-hydroxyformamidine N,N'-bis-(2,6-dimethyl-phen-yl)-N-oxidoformamidinium dichloro-methane solvate.

ABSTRACT: The title compound, 2C(17)H(20)N(2)O·CH(2)Cl(2), was obtained by N-oxidation of the parent formamidine with m-chloro-peroxy-benzoic acid (m-CPBA). This is the first use of the above-mentioned synthetic route for the preparation of hydroxy-amidines. The title compound crystallizes as a cyclic dimer resulting from the presence of O-H?O and N-H?N hydrogen bonds.

SUBMITTER: Cibian M

PROVIDER: S-EPMC2970452 | biostudies-literature | 2009 Sep

REPOSITORIES: biostudies-literature

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N,N-Bis-(2,6-di-methyl-phen-yl)-N-hydroxyformamidine N,N'-bis-(2,6-dimethyl-phen-yl)-N-oxidoformamidinium dichloro-methane solvate.

Cibian Mihaela M Derossi Sofia S Hanan Garry S GS

Acta crystallographica. Section E, Structure reports online 20090919 Pt 10

The title compound, 2C(17)H(20)N(2)O·CH(2)Cl(2), was obtained by N-oxidation of the parent formamidine with m-chloro-peroxy-benzoic acid (m-CPBA). This is the first use of the above-mentioned synthetic route for the preparation of hydroxy-amidines. The title compound crystallizes as a cyclic dimer resulting from the presence of O-H⋯O and N-H⋯N hydrogen bonds. ...[more]

PMID: 21577936

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{1,1'-[(2,2-Dimethyl-propane-1,3-di-yl)bis-(nitrilo-methyl-idyne)]di-2-naphthol-ato}dioxidomolybdenum(VI) dichloro-methane 1.75-solvate.

Project description:In the crystal structure of the title compound, [Mo(C(27)H(24)N(2)O(2))O(2)]·1.75CH(2)Cl(2), the Mo(VI) ion is coordinated by two oxide O atoms and by two O and two N atoms of the tetra-dentate 1,1'-[(2,2-dimethyl-propane-1,3-di-yl)bis-(nitrilo-methyl-idyne)]di-2-naphtholate Schiff base ligand in a distorted octa-hedral configuration. The compound crystallizes with 1.75 mol-ecules of dichloro-methane per complex mol-ecule. In the crystal, symmetry-related mol-ecules are linked by a number of C-H⋯O inter-actions involving both the Schiff base ligand and the partly disordered dichloro-methane solvent mol-ecules, leading to the formation of a two-dimensional network extending parallel to (101).

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1,1'-[4-(2,4-Dichloro-phen-yl)-2,6-di-methyl-1,4-di-hydro-pyridine-3,5-di-yl]diethanone.

Project description:In the title compound, C(17)H(17)Cl(2)NO(2), the central 1,4-dihydro-pyridine ring adopts a flattened-boat conformation. The ethanone substituents of the dihydro-pyridine ring at positions 3 and 5 have synperiplanar (cis) or anti-periplanar (trans) conformations with respect to the adjacent C=C bonds in the dihydro-pyridine ring. The 2,4-dichloro-phenyl ring is almost planar [r.m.s. deviation = 0.0045?(1)?Å] and almost perpendicular [89.27?(3)°] to the mean plane of the dihydro-pyridine ring. In the crystal, an N-H?O hydrogen bond links mol-ecules into a zigzag chain along the ac diagonal. C-H?Cl contacts form centrosymmetric dimers and additional weak C-H?O contacts further consolidate the packing.

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Project description:The title compound, C(27)H(39)N(2) (+)·C(24)H(20)B(-)·2CH(2)Cl(2), is the first reported imidazolidinium cation with the sterically demanding 2,6-diisopropyl-phenyl groups in the 1,3-positions. The crystal structure is stabilized by weak inter-molecular C-H??(arene) inter-actions. Due to the bulky nature of both the flanking 2,6-diisopropyl-phenyl substituents and the tetra-phenyl-borate counter-ion, anion inter-actions with the imidazolidinium H atom in the 2-position are not observed, also a first for this class of ortho-alkyl-substituted Arduengo-type carbene precursors.

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Project description:The title compound, C(38)H(30)OP(2)S·CH(2)Cl(2), belongs to the xanthene family of ligands containing S- and O-donor atoms in the central heterocylic ring. Positions 2 and 8 on the xanthene backbone are functionalized with methyl groups to allow for the selective functionalization of the backbone at positions 4 and 6 with diphenyl-phosphanyl units. The title compound shows a significant 'roof-like' bending along the axis of planarity involving the O- and S-donor atoms and the benzene rings, resulting in a dihedral angle between the mean planes of the benzene rings of 32.88?(13)°.

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Project description:In the title compound, C(27)H(37)N(2) (+)·Br(-)·2CH(2)Cl(2), both the cation and the anion are located on a crystallographic mirror plane. Both of the dichloro-methane solvent mol-ecules show a disorder across a mirror plane over two equally occupied positions. In the crystal, the cations are connnected to the bromide ions via C-H?Br hydrogen bonds.

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1,3-Bis(2,6-diisopropyl-phen-yl)-1H-imidazol-3-ium chloride dichloro-methane disolvate.

Project description:In the title compound, C(27)H(37)N(2) (+)·Cl(-)·2CH(2)Cl(2), the cation and the anion are each located on a crystallographic mirror plane. Both of the dichloro-methane solvent mol-ecules show a disorder across a mirror plane over two equally occupied positions. Additionally, one isopropyl group is also disordered. In the crystal, the cations are connected to the chloride ions via C-H?Cl hydrogen bonds.

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9-(2,6-Dimethyl-phen-oxy-carbon-yl)-10-methyl-acridinium trifluoro-methane-sulfonate.

Project description:In the crystal structure of the title compound, C(23)H(20)NO(2) (+)·CF(3)SO(3) (-), adjacent cations are linked through a network of C-H?? and ?-? inter-actions, and neighboring cations and anions via C-H?O inter-actions. The acridine and benzene ring systems are oriented at a dihedral angle of 31.4?(1)°. The carboxyl group is twisted at an angle of 66.3?(1)° relative to the acridine skeleton. The mean planes of the adjacent acridine moieties are parallel in the crystal structure.

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2,4-Dichloro-N-(2,6-dimethyl-phen-yl)benzene-sulfonamide.

Project description:In the crystal of the title compound, C(14)H(13)Cl(2)NO(2)S, the N-H bond in the C-SO(2)-NH-C segment orients itself away from the two ortho-methyl groups in the aniline benzene ring and towards the ortho-chloro group of the sulfonyl benzene ring. The mol-ecule is bent at the S atom with a C-SO(2)-NH-C torsion angle of -100.48?(18)°. The sulfonyl and aniline benzene rings are tilted relative to each other by 69.6?(1)°. Inter-molecular N-H?O hydrogen bonds link the mol-ecules into infinite chains.

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N-(2,6-Dichloro-phen-yl)-4-methyl-benzamide.

Project description:In the title compound, C(14)H(11)Cl(2)NO, the two aromatic rings are nearly orthogonal to each other [dihedral angle 79.7?(1)°], while the central amide core -NH-C(=O)- is nearly coplanar with the benzoyl ring [N-C-C-C torsion angles = -5.5?(3) and 1772.?(2)°]. In the crystal, inter-molecular N-H?O hydrogen bonds link the mol-ecules into C(4) chains propagating in [001].

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2,6-Dichloro-N-(4-methyl-phen-yl)benzamide.

Project description:In the title compound, C(14)H(11)Cl(2)NO, the two benzene rings are non-coplanar [dihedral angle = 60.9?(3)°]. In the crystal, an amide N-H?O hydrogen bond links the mol-ecules into chains which extend along (001).

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