Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Enantioselective synthesis of [1,1′-binaphthalene]-8,8′-diyl bis(diphenylphosphane) and its derivatives† † Electronic supplementary information (ESI) available. See DOI: https://doi.org/10.1039/d3ra07956b

ABSTRACT:

SUBMITTER: Tang Y

PROVIDER: S-EPMC10792274 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature

ACCESS DATA

Json Xml

Similar Datasets

(R)-1,1'-Binaphthalene-2,2'-diyl dicinnamate.

Project description:In the title compound, C(38)H(26)O(4), two cinnamo-yloxy groups are linked in a trans fashion to the two O atoms of optically active (R)-1,10-bi-2-naphthol. The dihedral angle between the mean planes of the two naphthyl groups is 71.8 (1)°. The crystal structure contains inter-molecular C-H⋯O and C-H⋯π inter-actions.

| S-EPMC2961303 | biostudies-literature

1,1'-Binaphthalene-2,2'-diyl hydrogen phosphate.

Project description:The title compound, racemic bnppa, C(20)H(13)O(4)P, crystallizes with four mol-ecules in the asymmetric unit. Two independent centrosymmetric O-H⋯O hydrogen-bonded tetra-mers, each involving two of the symmetry-independent mol-ecules in the asymmetric unit generate the packing motif in the crystal structure. The hydro-phobic parts of the tetra-mers connect to their neighbours via C-H⋯π and π-π inter-actions [3.899 (2), 3.895 (2) and 3.803 (2) Å within the symmetric unit, 3.851 (2), 4.000 (2), 3.988 (2) and 3.905 (2) Å across centres of symmetry].

| S-EPMC2915313 | biostudies-literature

2,2'-Bis(meth-oxy-meth-oxy)-3,3'-diphenyl-1,1'-binaphthalene.

Project description:The asymmetric unit of the title compound, C(36)H(30)O(4), contains two crystallographically independent mol-ecules of similar geometry. In both mol-ecules, the meth-oxy-meth-oxy groups are disordered over two positions with refined site occupancies of 0.613 (3):0.387 (3) and 0.589 (4):0.411 (4). The dihedral angles between the naphthalene planes within the same mol-ecule are 71.72 (7) and 71.73 (8)°. In the crystal, neighbouring mol-ecules are linked by inter-molecular C-H⋯O hydrogen bonds, forming double chains parallel to the c axis.

| S-EPMC3050160 | biostudies-literature

Gold-Catalyzed Atroposelective Synthesis of 1,1'-Binaphthalene-2,3'-diols.

Project description:A highly atroposelective (up to 97 % ee) Au-catalyzed synthesis of 1,1'-binaphthalene-2,3'-diols is reported starting from a range of substituted benzyl alkynones. Essential for the achievement of high enantioselectivity during the key assembly of the naphto-3-ol unit is the use of TADDOL-derived α-cationic phosphonites as ancillary ligands. Preliminary results demonstrate that the transformation of the obtained binaphthyls into axially chiral monodentate phosphines is possible without degradation of enantiopurity.

| S-EPMC7155015 | biostudies-literature

The synthesis and structures of 1,1'-bis(sulfonyl)ferrocene derivatives.

Project description:A series of 1,1'-bis(sulfonyl)ferrocene compounds were produced via the 1,1'-bis(sulfonate)ferrocene ammonium salt. This compound can be readily converted to 1,1' bis(sulfonylchloride)ferrocene. By varying stoichiometry and reaction times, both mono- and bis-sulfonamide derivatives can be synthesized. All new compounds presented in this report have been structurally characterized. The structures of the bis-sulfonamide systems are similar to the well-studied bis(amide) ferrocene compounds. Intermolecular hydrogen bonding is observed, typically between NH and SO groups of neighboring sulfonamides. However in the bis(GABA) derivative, intermolecular NH to CO hydrogen bonding interactions are present.

| S-EPMC5629003 | biostudies-literature

(R)-2,2'-Bis[N'-(3,5-dichloro-phen-yl)ureido]-1,1'-binaphthalene chloro-form disolvate.

Project description:The title compound, C(34)H(22)Cl(4)N(4)O(2)·2CHCl(3), is a new urea based on the 1,1'-binaphthalene skeleton, which crystallizes with two mol-ecules of binaphthalene and four mol-ecules of chloro-form in the unit cell. The chloro-form solvent mol-ecules do not participate in non-covalent inter-actions and therefore, can be found in several positions. The binaphthalene mol-ecules are connected via a system of N-H⋯O hydrogen bonds between the ureido units. C-H⋯O inter-actions also occur. In contrast to unsubstituted urea, where mol-ecules form squares in crystals, the bulky substituents disturb this arrangement and three ureido groups form infinite chains, while the fourth inter-acts with a neighbouring binaphthalene ring via an N-H⋯π inter-action. The solvent molecules are disordered with occupancy ratios of 0.60:0.40, 0.58:0.42, 0.50:0.50 and 0.77:0.23.

| S-EPMC3051457 | biostudies-literature

2,2'-{[(2,2'-Dieth-oxy-1,1'-binaphthalene-6,6'-di-yl)bis-(4,1-phenyl-ene)]bis-(methan-ylyl-idene)}dimalononitrile.

Project description:The title compound, C(44)H(30)N(4)O(2), was prepared from 6,6'-dibromo-2,2'-dieth-oxy-1,1'-binaphthalene through a coupling reaction with 4-(4,4,5,5-tetra-methyl-1,3,2-dioxaborolan-2-yl)benzaldehyde followed by a Knoevenagel reaction with malononitrile. The dihedral angle between the symmetry-related naphthalene ring systems is 68.82 (8)° while the dihedral angle between the the naphthalene ring system and the adjacent benzene ring is 16.92 (7)°. Four symmetry-independent mol-ecules which are linked by inter-molecular C-H⋯π inter-action generate the packing motif in the crystal structure. One of the CN groups is disordered over two sets of sites in a 0.60 (2):0.40 (2) ratio.

| S-EPMC3470211 | biostudies-literature

1,1'-[(1,3-Dihydroxypropane-2,2-diyl)dimethylene]dipyridinium bis-(hexa-fluoro-phosphate).

Project description:The title compound, C(15)H(20)N(2)O(2) (2+)·2PF(6) (-), was prepared by anion exchange of two bromide ions in the ionic liquid 2,2'-bis-(pyridinium-1-ylmeth-yl)-propane-1,3-diol dibromide with potassium hexa-fluoro-phosphate. The two pyridine rings are planar (r.m.s. deviations = 0.008 and 0.00440 Å) and make a dihedral angle of 44.0 (2)°. Intermolecular O-H⋯F and C-H⋯F interactions occur. The four F atoms in each anion were refined as disordered over two sets of sites with an occupancy ration of 0.700 (19):0.300 (19).

| S-EPMC3089249 | biostudies-literature

2,2'-{1,1'-[Pentane-1,5-diyl-bis(oxy-nitrilo)]-diethyl-idyne}diphenol.

Project description:In the title compound, C(21)H(26)N(2)O(4), there is half a mol-ecule in the asymmetric unit with a crystallographic twofold rotation axis passing through the central C atom of the -CH=N-O-(CH(2))(5)-O-N=CH- bridge. The dihedral angle formed by the two benzene rings is 80.85 (2)°. Strong intra-molecular O-H⋯N and C-H⋯O hydrogen bonds help to establish the molecular conformation. There are also weak inter-molecular π-π stacking inter-actions between neighbouring benzene rings [centroid-centroid separation = 3.502 (3) Å].

| S-EPMC2959680 | biostudies-literature

3,3'-Dibromo-1,1'-[(propane-1,3-diyl-dioxy)-bis(nitrilo-methyl-idyne)]dibenzene.

Project description:The mol-ecule of the title compound, C(17)H(16)Br(2)N(2)O(2), lies on a twofold axis that passes through the middle atom of the three-atom trimethyl-ene unit. The two aromatic rings are aligned at an angle of 76.02 (4)°.

| S-EPMC2961867 | biostudies-literature

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data