34825-70-2Relevant academic research and scientific papers
Immobilization of a non-heme diiron complex encapsulated in an ammonium-type ionic liquid layer modified on an Au electrode: Reactivity of the electrode for O2 reduction
Kitagawa, Tatsuya,Nishino, Junpei,Inomata, Tomohiko,Ozawa, Tomohiro,Funahashi, Yasuhiro,Masuda, Hideki
, p. 4780 - 4783 (2016)
An unstable diiron(ii,ii) complex possessing O2 binding ability at low temperature was encapsulated and stabilized in an ammonium-type ionic liquid layer polymerized on an electrode. The encapsulated complex revealed catalytic reactivity for four-electron reduction of O2 at an ambient temperature in aqueous solution.
METHOD FOR PRODUCING PRIMARY AMINES
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Paragraph 0047; 0051; 0052, (2019/08/27)
PROBLEM TO BE SOLVED: To provide a method for producing primary amines industrially, economically, safely, and efficiently. SOLUTION: Provided is a method for producing primary amines represented by R1-NH2 by reacting, in the presence of an acid catalyst, an imine compound, represented by formula (1), and an alcohol represented by R4-(OH)n, comprising a step of distilling off the primary amine from a reaction mixture which is in the reaction process. (R1 is an alkyl group or an alkenyl group; R2 is H, an alkyl group, or an aryl group; R3 is an aryl group; R4 is an n-valent hydrocarbon roup; and n is an integer of 1 to 3.) SELECTED DRAWING: None COPYRIGHT: (C)2019,JPOandINPIT
HERBICIDE COMPOSITION COMPRISING CLOMAZONE AND USE THEREOF
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Page/Page column 22; 23, (2018/03/09)
A composition comprising a water-immiscible material or high volatile material encapsulated within a microcapsule is provided, the microcapsules having a shell comprising a polyurea cross-linked by epoxy resin polymer. The method for preparing the same, and the use of the same in the control of unwanted plant growth are also provided.
Dual Role of Vinyl Sulfonamides as N-Nucleophiles and Michael Acceptors in the Enantioselective Synthesis of Bicyclic δ-Sultams
Mulet, Cristina,Escolano, Marcos,Llopis, Sebastián,Sanz, Sergio,Ramírez de Arellano, Carmen,Sánchez-Roselló, María,Fustero, Santos,del Pozo, Carlos
supporting information, p. 2885 - 2893 (2018/08/17)
A new methodology for the synthesis of enantiomerically enriched bicyclic δ-sultams is described, involving an initial organocatalytic intramolecular aza-Michael reaction of vinyl sulfonamides bearing a conjugated ketone at a remote position. The resulting Michael adducts were then subjected to an intramolecular conjugate addition over the vinyl sulfone moiety, thus rendering the final bicyclic sultams containing two stereocenters. The key point of this strategy relies on the use of vinyl sulfonamides as both, nitrogen nucleophiles and Michael acceptors. The use of phosphazene-derived bases avoided the racemization of the intermediate derivatives, rendering 6-membered ring bicyclic δ-sultams in enantiomerically enriched manner with a small erosion of enantiopurity. Anyway, after recrystallization, final sultams were obtained in almost enantiomerically pure form. Nevertheless, the enantioselective synthesis of either 5-membered ring products or benzofused derivatives was found to be out of the scope of our strategy. (Figure presented.).
Palladium-Catalyzed Aerobic Oxidative Cyclization of Aliphatic Alkenyl Amides for the Construction of Pyrrolizidine and Indolizidine Derivatives
Lo, Kai-Yip,Ye, Liu,Yang, Dan
supporting information, p. 1570 - 1575 (2017/08/11)
An efficient palladium-catalyzed aerobic oxidative cyclization has been developed to synthesize a variety of pyrrolizidine and indolizidine derivatives from simple aliphatic alkenyl amides in moderate to good yields. The reaction features the capability of accessing various N-heterocycles and the use of molecular oxygen (1 atm) as the green oxidant.
Formation of Self-Templated 2,6-Bis(1,2,3-triazol-4-yl)pyridine [2]Catenanes by Triazolyl Hydrogen Bonding: Selective Anion Hosts for Phosphate
Byrne, Joseph P.,Blasco, Salvador,Aletti, Anna B.,Hessman, Gary,Gunnlaugsson, Thorfinnur
, p. 8938 - 8943 (2016/07/26)
We report the remarkable ability of 2,6-bis(1,2,3-triazol-4-yl)pyridine (btp) compounds 2 with appended olefin amide arms to self-template the formation of interlocked [2]catenane structures 3 in up to 50 % yield when subjected to olefin ring-closing metathesis in CH2Cl2. X-ray diffraction crystallography enabled the structural characterization of both the [2]catenane 3 a and the non-interlocked macrocycle 4 a. These [2]catenanes showed selective triazolyl hydrogen-bonding interactions with the tetrahedral phosphate anion when screened against a range of ions; 3 a,b are the first examples of selective [2]catenane hosts for phosphate.
Production of unsaturated amine (by machine translation)
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Paragraph 0038, (2017/06/02)
[Problem] amino alcohol used as a raw material 3 - 6 carbon atoms, the carbon number of the unsaturated amine 3 - 6 high yield manufacturing easily and smoothly. [Solution] according to the present invention a method of producing an unsaturated amine, aminoalcohol 3 - 6 carbon atoms, more preferably a rare earth oxide is ytterbium oxide used as the catalyst, the carbon number of the unsaturated amine is produced by dehydration reaction 3 - 6. Further in the present invention, the rare earth oxide is ytterbium oxide is used as a catalyst, yttrium oxide, erbium oxide and lutetium oxide is preferably either. [Drawing] no (by machine translation)
Dehydration of 5-amino-1-pentanol over rare earth oxides
Ohta, Kaishu,Yamada, Yasuhiro,Sato, Satoshi
, p. 73 - 80 (2016/04/05)
Vapor-phase catalytic dehydration of 5-amino-1-pentanol was investigated over various oxide catalysts including rare earth oxides (REOs). Over ordinary acidic oxides such as Al2O3, SiO2, SiO2-Al2O3, TiO2, and ZrO2, a cyclic amine such as piperidine was mainly produced at temperatures of 300 °C and higher. In contrast, basic REOs with a cubic bixbyite structure showed the catalytic activity in the conversion of 5-amino-1-pentanol to produce 4-penten-1-amine at 425 °C. In REO catalysts, Tm2O3, Yb2O3, and Lu2O3 showed the high conversion of 5-amino-1-pentanol and the high selectivity to 4-penten-1-amine. Especially, Yb2O3 calcined at 800 °C showed a high formation rate of 4-penten-1-amine with the selectivity of ca. 90% at 425 °C. In comparing the reactivity of several amino alcohols to form the corresponding unsaturated amines, Yb2O3 effectively catalyzed the dehydration of 6-amino-1-hexanol into 5-hexen-1-amine, whereas 3-amino-1-propanol and 4-amino-1-butanol were not effectively dehydrated due to the decomposition of the reactant.
Catalytic enantioselective synthesis of azacycloalkenes via intermolecular rhodium carbenoid C-H insertion/ring-closing metathesis sequence
McMills, Mark C.,Humes, Ross J.,Pavlyuk, Oksana M.
supporting information; body text, p. 849 - 851 (2012/03/11)
Enantiomerically enriched cyclopropanes and products of C-H insertion reactions were obtained in excellent combined yields and enantioselectivities as a consequence of rhodium-catalyzed decomposition of vinyl diazoacetate in the presence of tert-butoxycarbonyl-(Boc)-protected amines as trapping agents. A series of enantiomerically enriched six- to eight-membered nitrogen-containing heterocycles were subsequently prepared via ring-closing metathesis of the dienes catalyzed by ruthenium benzylidene complex.
Z-SELECTIVE RING-CLOSING METATHESIS REACTIONS
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Page/Page column 179-180, (2013/02/28)
The present invention relates generally to olefin metathesis. In some embodiments, the present invention provides methods for Z-selective ring-closing metathesis.
