Usually the Rh-catalyzed hydroformylation of styrene predominantly yields the branched, chiral aldehyde. An inversion of regioselectivity can be achieved using strong π-acceptor ligands. Binaphthol-based diphosphite and bis(dipyrrolyl-phosphorodiamidite) ligands were applied in the Rh-catalyzed hydroformylation of styrene. High selectivities up to 83% of 3-phenylpropanal were obtained with 1,1-...

The title compound, C(19)H(22)N(2)O(2)S(2), consists of a tetra-cyclic ring system containing an azocine skeleton with methoxy-ethyl and dithiol-ane groups as substituents. The benzene and five-membered N-heterocyclic rings are nearly coplanar, making a dihedral angle of 0.81 (12)°. The dithiol-ane ring adopts an envelope conformation. Inter-molecular N-H⋯O hydrogen-bonding and weak C-H⋯π inter...

The title compound, C(14)H(19)N(3)O(2)S, was obtained from a condensation reaction of N-(p-tol-yl)hydrazinecarbothio-amide and ethyl acetoacetate. The mol-ecule assumes an E configuration; the thio-semicarbazide and ester groups are located on the opposite sides of the C=N bond. The almost planar thio-semicarbazide unit (r.m.s. deviation = 0.0130 Å) is tilted at a dihedral angle of 49.54 (12)° ...

The title compound, C(15)H(10)O(4)·H(2)O, also known as alizarin 1-methyl ether monohydrate, was isolated from Morinda officinalis How. The anthraquinone ring system is almost planar, the dihedral angle between the two outer benzene rings being 3.07 (4)°. In the crystal structure, O-H⋯O hydrogen bonds link the organic mol-ecules and the water mol-ecules, forming a three-dimensional network.

Carbon nanofibers have been immobilized onto carbon felt as the first step for their industrial application in Oxidative DeHydrogenation (ODH) reactions, exhibiting a stable performance with a high selectivity to styrene in the ODH of ethyl benzene at temperatures around 300 K lower than the actual industrial process, and inhibiting the problem that loose small particle as CNFs shows for being ...

The title compound, C(15)H(12)O(3)S, was prepared by alkaline hydrolysis of ethyl 2-{1-(methyl-sulfan-yl)naphtho[2,1-b]furan-2-yl}acetate. The crystal structure is stabilized by CH(2)-H⋯π inter-actions between the methyl H atoms of the methyl-sulfanyl substituent and the central benzene ring of the naphthofuran system, and by inversion-related inter-molecular O-H⋯O hydrogen bonds between the ca...

The title compound, C(29)H(35)N(3), is the product of the condensation reaction between 2,6-diacetyl-pyridine and 2,6-diethyl-aniline. In the mol-ecule, the pyridyl ring is coplanar with the imino functional groups [torsion angles in the range 177.1 (2)-179.9 (2)°. The two 2,6-diethyl-substituted benzene rings are approximately perpendicular to the ethyl-idenepyridine central core, the dihedral...

The central eight-membered ring of the title compound, C40H36N8O2, deviates from the ideal boat conformation because the bond between the exo-ethyl-ene group and the adjacent N atom is twisted by 60.0 (4)° due to steric hindrance. Its adjacent benzene and pyrazole rings are oriented almost perpendicular to each other, making a dihedral angle of 85.8 (3)°. In the crystal, the mol-ecules are link...

The title compound, C(19)H(19)N(7)O(5), exhibits substitutional disorder of the ortho-nitro and cyano groups, with site-occupancy factors of 0.686 (7):0.314 (7). The two aromatic rings are essentially coplanar, with a dihedral angle of 6.6 (5)°. In the diethyl-amino group, the two ethyl groups lie on the same side of the amino-benzene plane. An intra-molecular N-H⋯N hydrogen bond links the amin...

In the title salt, C2H10N2 (2+)·2C14H10NO3 (-), the ethyl-ene-diaminium dication lies on an inversion centre. In the anion, the benzene rings make a dihedral angle of 33.87 (9)° and intramolecular N-H⋯O and C-H⋯O hydrogen bonds occur. All the amino H atoms are involved in N-H⋯O hydrogen bonds. These hydrogen bonds link the ionic units into a three-dimensional network. In addition, the crystal s...