934-90-7Relevant academic research and scientific papers
Synthesis, aggregation, and biocidal properties of N-2-hydroxypropyl piperidine based cationic surfactants
Abdullayev, Yusif,Ahmadova, Gulnara A.,Asadova, Nahida Z.,Gurbanov, Atash V.,Huseynova, Khuraman A.,Ibrahimova, Minavar J.,Kh. Mammadov, Rustam,Rahimov, Ravan A.,Zubkov, Fedor I.
, (2021/10/20)
New cationic ionic liquid surfactants (ILS) based on (C9-C10, C12 and C14) alkyl bromides and N-2-hydroxypropyl piperidine have been synthesized. Colloidal parameters of aqueous solutions of the obtained ILSs were studied by surface tension and dynamic light scattering methods. Specific electrical conductivity was measured by the conductometric method. Depending on the alkyl chain length, critical micelle concentration (CMC), maximum adsorption (Гmax), the minimum cross-sectional area of the surfactant polar group (Amin), adsorption efficiency (pC20), surface pressure (πCMC), degree of counterion binding (β), changes of the Gibbs free energy of micellization and adsorption (ΔGmic and ΔGad) were studied. The ILSs antimicrobial properties were tested on various bacteria and fungi.
A method for synthesis of β - piperidine alcohol (by machine translation)
-
Paragraph 0012; 0013; 0016; 0017, (2017/07/04)
The invention discloses a method for synthesis of β - piperidine alcohol, using piperidine and epoxy alkane to react, by adding the catalyst zinc chloride control epoxy alkane open-loop, so that the reaction is easy to carry out; hybrid has multi-active adsorption center, can improve the performance of the anode polarization, the role of inhibiting corrosion, which belongs to the anode type corrosion inhibitor. (by machine translation)
Catalytic intermolecular hydroaminations of unactivated olefins with secondary alkyl amines
Musacchio, Andrew J.,Lainhart, Brendan C.,Zhang, Xin,Naguib, Saeed G.,Sherwood, Trevor C.,Knowles, Robert R.
, p. 727 - 730 (2017/02/26)
The intermolecular hydroamination of unactivated alkenes with simple dialkyl amines remains an unsolved problem in organic synthesis. We report a catalytic protocol for efficient additions of cyclic and acyclic secondary alkyl amines to a wide range of alkyl olefins with complete anti-Markovnikov regioselectivity. In this process, carbon-nitrogen bond formation proceeds through a key aminium radical cation intermediate that is generated via electron transfer between an excited-state iridium photocatalyst and an amine substrate. These reactions are redox-neutral and completely atom-economical, exhibit broad functional group tolerance, and occur readily at room temperature under visible light irradiation. Certain tertiary amine products generated through this method are formally endergonic relative to their constituent olefin and amine starting materials and thus are not accessible via direct coupling with conventional ground-state catalysts.
Tetragonal versus hexagonal: Structure-dependent catalytic activity of Co/Zn bimetallic metal-organic frameworks
Pariyar, Anand,Asl, Hooman Yaghoobnejad,Choudhury, Amitava
supporting information, p. 9250 - 9257 (2016/09/28)
Tetragonal and hexagonal phases of monometallic Zn and bimetallic Co/Zn metal-organic frameworks (MOFs), with secondary building units (SBUs) containing a M3O (M = metal) cluster, were synthesized from identical constituents using a benzenetricarboxylate (BTC3-) linker that forms decorated 3,6- and 3,5-connected networks, respectively. There exist subtle differences between the SBUs; one of the metal atoms in the M3O cluster in the tetragonal phase has one dissociable DMF solvent molecule while that in the hexagonal phase has three. Connectivities between the SBUs form one-dimensional channels in both MOFs. These MOFs catalyze the chemoselective addition of amines to epoxides, giving exclusively β-hydroxyamine under heterogeneous conditions. A ring-opening reaction of a symmetrical epoxide showed that the hexagonal phase diastereoselectively yields trans-alcohol, exhibiting an exquisite model for structure-dependent activity.
A solvent free method for preparation of β-amino alcohols by ring opening of epoxides with amines using MCM-22 as a catalyst
Baskaran, Thangaraj,Joshi, Akanksha,Kamalakar, Gunda,Sakthivel, Ayyamperumal
, p. 50 - 55 (2016/07/06)
β-amino alcohols were synthesized at room temperature employing microporous MCM-22 zeolite as catalyst in an eco-friendly manner without using solvent. The zeolite MCM-22 showed promising activity for the conversion of primary and secondary amines into β-amino alcohols under mild reaction conditions. The catalytic activity remains intact for three recycles.
Platinum-Catalyzed, Terminal-Selective C(sp3)-H Oxidation of Aliphatic Amines
Lee, Melissa,Sanford, Melanie S.
supporting information, p. 12796 - 12799 (2015/10/28)
This Communication describes the terminal-selective, Pt-catalyzed C(sp3)-H oxidation of aliphatic amines without the requirement for directing groups. CuCl2 is employed as a stoichiometric oxidant, and the reactions proceed in high yield at Pt loadings as low as 1 mol%. These transformations are conducted in the presence of sulfuric acid, which reacts with the amine substrates in situ to form ammonium salts. We propose that protonation of the amine serves at least three important roles: (i) it renders the substrates soluble in the aqueous reaction medium; (ii) it limits binding of the amine nitrogen to Pt or Cu; and (iii) it electronically deactivates the C-H bonds proximal to the nitrogen center. We demonstrate that this strategy is effective for the terminal-selective C(sp3)-H oxidation of a variety of primary, secondary, and tertiary amines.
Regioselective ring opening in epoxides under the action of amines in water medium
Talybov,Abbasov,Mamedbeili,Kochetkov
experimental part, p. 1819 - 1824 (2011/02/24)
Amino(bis-amino)derivatives of 2-propanol were synthesized by ring opening in epoxides under the action of amines in water medium using environmentally safe methods. The structure of the compounds obtained was established by elemental analysis and the IR, 1H and 13C NMR spectroscopy. It was found that these substances are effective bactericides. They suppress the growth of the sulfate-reducing bacteria and exhibit high anticorrosive properties.
Efficient radical domino approach to β-aminoalcohols from arylamines and alcohols triggered by Ti(III)/t-BuOOH
Spaccini, Raffaele,Ghilardi, Alessandra,Pastori, Nadia,Clerici, Angelo,Punta, Carlo,Porta, Ombretta
supporting information; experimental part, p. 2044 - 2052 (2010/04/26)
We report that an aqueous Ti(III)/t-BuOOH system promotes the efficient domino radical reaction of arylamines with alcohol cosolvents leading to β-aminoalcohols in good yields, in less than ten minutes at room temperature. The free-radical mechanism accor
Hydrophobic amplification of noncovalent organocatalysis
Kleiner, Christian M.,Schreiner, Peter R.
, p. 4315 - 4317 (2007/10/03)
The effects of hydrogen-bonding organocatalysts and water for the acceleration of epoxide openings with a variety of nucleophiles are additive and lead to excellent yields of the catalyzed reactions in water. The Royal Society of Chemistry 2006.
Highly chemoselective addition of amines to epoxides in water
Azizi, Najmodin,Saidi, Mohammad R.
, p. 3649 - 3651 (2007/10/03)
(Chemical Equation Presented) Aminolysis of a variety of epoxides by aliphatic and aromatic amines in water, in the absence of any catalyst with high yields, is reported. β-Amino alcohols were formed under mild conditions with high selectivity and in excellent yields.
