نتایج جستجو برای: 3 carboaldahyde pyridine
تعداد نتایج: 1819719 فیلتر نتایج به سال:
Trans-bis(3-tert-butylpyridine-κN)bis(4-tert-butylpyridine-κN)bis(thiocyanato-κN)manganese(II)
The asymmetric unit of the title compound [Mn(NCS)(2)(C(9)H(13)N)(4)] consists of one Mn(II) cation located on a center of inversion, one thio-cyanato anion, one 3-tert-butyl-pyridine ligand and one 4-tert-butyl-pyridine ligand in general positions. The tert-butyl group of the 4-tert-butyl-pyridine ligand is disordered over two sets of sites in a 0.60:0.40 ratio. The Mn(II) cation is coordinate...
The asymmetric unit of the title compound, [Cd(NCS)(2)(C(9)H(13)N)(4)], consists of one Cd(II) cation located on a centre of inversion, one thio-cyanate anion, one 3-tert-butyl-pyridine ligand and one 4-tert-butyl-pyridine ligand in general positions. The tert-butyl group of the 4-tert-butyl-pyridine ligand is disordered over two sets of sites in a 0.25:0.75 ratio and was refined using a split ...
The crystal structure of the title compound, C(15)H(11)FN(2)O(3), was determined as part of a study on the biological activity of isoxazolone derivatives as p38 mitogen-activated protein kinase (MAPK) inhibitors. The dihedral angles between rings are isoxazole/benzene = 55.0 (3)°, isoxazole/pyridine = 33.8 (2)° and benzene/pyridine = 58.1 (2)°.
Unprecedented photochemical reactions for the diamidocarbene 1 including double cyclopropanation of 1-bromonaphthalene, addition to pyridine, and activation sp 3 C–H bonds alkanes are reported.
Isolation and structure analysis of two amino acids from bovine ligamentum nuchae elastin hydrolysates revealed the presence of pyridine cross-links in elastin. The structures of these amino acids were determined to have 3,4,5- and 2,3,5-trisubstituted pyridine skeletons both with three carboxylic acids and a mass of 396 (C(18)H(28)N(4)0(6)) identified as 4-(4-amino-4-carboxybutyl)-3,5-di-(3-am...
In the title compound, C(32)H(37)NO(3), the central dihydro-pyridine ring adopts a nearly planar flattened-boat conformation, whereas both cyclo-hexenone rings adopt half-chair conformations. The mean and maximum deviations from the mean plane of the dihydro-pyridine ring are 0.1252 (9) and 0.188 (1) Å, respectively. The 4-eth-oxy-phenyl and phenyl rings form dihedral angles of 75.20 (4) and 82...
Complexes (THF)0-2E[P3Nb(ODipp)3]2 (E = Sn, Pb; Dipp = 2,6-(i)Pr2C6H3) were isolated (>90%) from the salt metathesis of [Na(THF)3][P3Nb(ODipp)3] with E(2+) salts. The reaction of (THF)Sn[P3Nb(ODipp)3]2 with pyridine-N-oxide was investigated as a method to deposit a new SnP6 phase. Additionally, the neutral complex P3Nb(ODipp)2(py)2 (py = pyridine) was prepared from [Na(THF)3][P3Nb(ODipp)3] in t...
The title compound, C(15)H(16)N(4)O, was prepared by the reaction of pyridine-3-carbaldehyde with 4-dimethyl-amino-benzo-hydrazide in methanol. The dihedral angle between the pyridine and the benzene rings is 5.1 (3)°. In the crystal structure, the hydrazone mol-ecules are linked through inter-molecular N-H⋯O hydrogen bonds, forming chains along the b axis.
We present R-matrix calculations for electron scattering from microhydrated pyridine. We studied the pyridine-H2O cluster at static-exchange (SE), SE + polarization, and close-coupling levels, and pyridine-(H2O)n n = 2, 3, and 5 at SE level only in order to investigate the effect of hydrogen bonding on the resonances of pyridine. We analyse the results in terms of direct and indirect effects. W...
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