102-87-4Relevant articles and documents
Selectivity control in substituted fatty amines synthesis from esters or nitriles in the presence of bifunctional catalysts
Barrault,Brunet,Suppo-Essayem,Piccirilli,Guimon
, p. 1231 - 1238 (1994)
Copper chromite-type catalysts, supported by alumina or graphite and promoted with barium, were used for the one-step synthesis of tertiary fatty amines [R2NCH3 or RN(CH3)2] from ester, acid or nitrile and ammonia, methanol and hydrogen. The surface composition of the catalysts, studied by X-ray photoelectron spectroscopy and by adsorption experiments, showed that there was a correlation between selectivity and the presence of a well-dispersed CuCrO2 phase, stabilized with barium. Moreover, the elements influencing the stability of the copper catalysts were also studied, and the promoter or/and the support increased the copper surface area and the stability of the catalyst in the presence of water or ammonia.
Conversion of Primary Amines to Symmetrical Secondary and Tertiary Amines using a Co-Rh Heterobimetallic Nanocatalyst
Chung, Hyunho,Han, Seulgi,Chung, Young Keun,Park, Ji Hoon
supporting information, p. 1267 - 1272 (2018/02/12)
Symmetrical tertiary amines have been efficiently realized from amine and secondary amines via deaminated homocoupling with heterogeneous bimetallic Co2Rh2/C as catalyst (molar ratio Co:Rh=2:2). Unsymmetric secondary anilines were produced from the reaction of anilines with symmetric tertiary amines. The Co2Rh2/C catalyst exhibited very high catalytic activity towards a wide range of amines and could be conveniently recycled ten times without considerable leaching. (Figure presented.).
Alkyl substituent effect on the polarity of phenols-tri-n-alkylamine complexes
Pawelka, Zbigniew,Zeegers-Huyskens, Therese
, p. 1012 - 1018 (2007/10/03)
The formation constants and the dipole moments of the H-bonded adducts of 1:1 and 2:1 stoichiometries formed between three different phenols (phenol, 2,4,6-trichlorophenol, and 2,4-dinitrophenol) and different tri-n-alkylamines are determined in solvents
Process for low color bisphenol
-
, (2008/06/13)
A process comprising the addition of a degradation inhibiting effective amount of an amine having a boiling point above that of the phenol used in the process to a composition comprising the said phenol and a bisphenol, the addition occurring prior to a procedure which subjects the bisphenol to substantial heat, said bisphenol produced from an acidic ion exchange resin catalyzed reaction of the said phenol and a ketone or aldehyde.
Amine oxide process
-
, (2008/06/13)
A process for accelerating the oxidation of tert-amines by hydrogen peroxide by conducting the reaction in the presence of an ascorbic acid promoter.
Bilayer Membranes of Triple-Chain Ammonium Amphiphiles
Kunitake, Toyoki,Kimizuka, Nobuo,Higashi, Nobuyuki,Nakashima, Naotoshi
, p. 1978 - 1983 (2007/10/02)
Ten ammonium amphiphiles which possess three long-chain alkyl tails (C12 or C16) were prepared.They form clear aqueous dispersions upon sonication.Electron microscopy and light scattering experiments indicated the formation of huge bilayer aggregates except for one case.These bilayers undergo the characteristic crystal-to-liquid crystal-phase transition, as confirmed by differential scanning calorimetry (DSC) and by fluorescence depolarization of a diphenylhexatriene probe.Riboflavin, a water-soluble fluorescent probe, was shown to be trapped in bilayer vesicles of some triple-chain amphiphiles.Mixing of these bilayers with those of single-chain and double-chain amphiphiles was examined by DSC and by absorption spectroscopy.Together with our previous results, the present study establishes that the bilayer formation is a general phenomenon that is observable for a wide variety of synthetic amphiphiles.
SELECTIVE CONVERSION OF PRIMARY AMINES INRO N,N-DIMETHYLALKYL- OR N,N-DIALKYLMETHYL-AMINES WITH METHANOL AND RuCl2(Ph3P)3
Arcelli, Antonio,Khai, Bui-The,Porzi, Gianni
, p. 93 - 96 (2007/10/02)
N,N-dimethylalkyl- or N,N-dialkylmethyl-amines are selectively obtained from the reaction between aliphatic amines and methanol at 180 deg C for 7 h in the presence of RuCl2(Ph3P)3 catalyst.
Cyclization of α,ω Aliphatic Diamines and Conversion of Primary Amines to Symmetrical Tertiary Amines by a Homogeneous Ruthenium Catalyst
Bui-The-Khai,Concilio, Carlo,Porzi, Gianni
, p. 1759 - 1760 (2007/10/02)
α,ω Aliphatic diamines were cyclized to heterocyclic amines by being heated at 180 deg C for 5 h with RuCl2(Ph3P)3 in diphenyl ether.Primary amines having an α-hydrogen atom are converted to symmetrical tertiary amines by being heated at 185 or 235 deg C for 8 h with RuCl3*3H2O and Ph3P in THF solution.
ACTIVITY AND SELECTIVITY OF COBALT, NICKEL AND COPPER CATALYSTS FOR HYDROGENATION OF LAURONITRILE
Pasek, Josef,Kostova, Nina,Dvorak, Bohumir
, p. 1011 - 1022 (2007/10/02)
Cobalt and nickel metal powders possessing various specific surface areas were prepared by decomposition of their salts under hydrogen.The activity of the metals for hydrogenation of lauronitrile was found to be proportional to their specific surface areas.Oxide carriers do not affect the specific activity of the metals.The relative specific activities of the metals are in the ratio Ni:Co:Cu=20:10:1.Pure nickel affords 2.3 times more secondary amine than cobalt; on copper catalyst, secondary amine is formed predominantly.
