CAS: 14866-33-2; Tetraoctylammonium Bromide

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CAS号100-39-0 溴化苄 | CAS号49562-76-7 4-硝基苯辛醚 | CAS号3007-75-8 N,N-二辛基苯胺 | CAS号3007-71-4 正辛基苯胺 | CAS号111-83-1 1-溴代正辛烷 | CAS号70098-05-4 tetra°Ctylammon... | CAS号106-94-5 溴代丙烷 | CAS号66091-57-4 tetra°Ctylazani...

甲醇,以 二氯甲烷 用作溶剂,化学反应生成四正辛基溴化铵
参考文献:Interaction Between Methanol And The Cl-,Br-,I-,No3-,Clo4-,Bf4-,So3Cf3-And Pf6-Anions Studied By Ftir Spectroscopy.
标题:Interaction Between Methanol And The Cl-,Br-,I-,No3-,Clo4-,Bf4-,So3Cf3-And Pf6-Anions Studied By Ftir Spectroscopy.
摘要:The Interaction Between Methanol And The Cl-,Br-,I-,No3-,Clo4-,Bf4-,So3Cf3-And Pf6-Anions In Dilute Dichloromethane Solutions Has Been Investigated. The Oh Stretching Vibration Was Used To Monitor The Hydrogen Bonds Formed Between The Anions And The Methanol Molecules,Providing A Direct Measure Of The Hydrogen-Bond Strength. Concentrations Of Free And Anion-Bonded Methanol Molecules Were Measured And The Equilibrium Constants Calculated. The Wavenumber Shift And The Free Energy Of Hydrogen-Bond Formation Was Found To Be Significantly Correlated. Far The Anions Studied It Was Found That The Hydrogen-Bond Strength Increases Hr The Order: Pf6-< Bf4-< Clo4-< So3Cf3-< No3-< Br-< Cl-.
Doi:10.3891/acta.Chem.Scand.51-0270

专利信息

专利号:WO-2021038581-A1
优先权日:2019-08-30
标题 :A one step synthesis of 2-substituted benzo[b]thiophenes
发明人：SEKAR GOVINDASAMY; POONGUZHALI ELAMVAZHUTHI
权利人:INDIAN INST TECH MADRAS
摘要:The invention pertains to a one step synthesis of 2-substituted benzo[ b ]thiophene of general formula wherein the synthesis of 2-substituted benzo[ b ]thiophenes is by reacting the starting materials substituted or unsubstituted 2-halogenobenzaldehyde and substituted or unsubstituted acetyl/phenacyl bromide with a catalyst, a sulphur source and phase transfer catalyst in an aqueous medium with atmospheric air and at temperature in the range of 25°C-30°C.

专利号:US-8110021-B2
优先权日:2008-07-28
标题:Synthesis of PtCo nanoparticles
发明人：ZHONG CHUAN-JIAN; LUO JIN; XU ZHICHAUN; HE TING
权利人:ZHONG CHUAN-JIAN; LUO JIN; XU ZHICHAUN; HE TING; HONDA MOTOR CO LTD; UNIV NEW YORK STATE RES FOUND
摘要:Synthesis of nanoparticles with particle size control is provided by the method of using two different metal-containing precursors, a capping component, an optional reducing agent, and then contacting the two precursors with the capping component to form a reaction solution, which is heated to produce first and second metals-containing nanoparticles. By controlling the ratio of the concentration of the capping component to the total concentration of the two metal-containing precursors, the nanoparticles can have diameters ranging between about 1 nm to about 15 nm. A decrease in the concentration of the capping component typically increases the size of the nanoparticles. Preferred compositions include Pt and Co-containing alloy nanoparticles. Controlled synthesis of larger, about 6 nm to about 12 nm, sized nanoparticles can be achieved in a solvent-free reaction process.

专利号:US-9315483-B2
优先权日:2007-09-13
标题 :Synthesis of deuterated catechols and benzo[D][1,3]dioxoles and derivatives thereof
发明人：JONES ANDREW D; ZELLE ROBERT E; SILVERMAN I ROBERT
权利人:CONCERT PHARMACEUTICALS INC
摘要:The present invention provides a convenient and efficient process for the synthesis of d 2 -benzo[d][1,3]dioxoles.

专利号:US-2009253746-A1
优先权日:2005-11-14
标题 :Synthesis and Preparations of Intermediates and New Polymorphs Thereof Useful For The Preparation Of Donepezil Hydrochlcoride
发明人：SOLDEVILLA MADRID NURIA
权利人:SOLDEVILLA MADRID NURIA
摘要:The invention relates to an improved process for preparing 2-(1-benzylpiperidin-4-ylmethyliden)-5,6-dimethoxyin-dan- 1 -one (a key intermediate in the synthesis of donepezil hydrochloride), crystalline polymorph forms of this key intermediate and their use thereof for producing donepezil hydrochloride. In particular, the invention provides an improved method for producing the intermediate 2-(1-benzylpiperidin-4-ylmethyliden)-5,6-dimethoxyindan-1-one. The process includes reacting 5,6-dimethoxyin-dan- 1 -one with 1-benzylpiperidine-4-carbaldehyde using potassium hydroxide in an aqueous solvent. The aqueous solvent can be a mixture of an organic solvent and water Where the organic solvent is not miscible with water, the reaction may be performed in the presence of a phase transfer catalyst.

专利号:US-8697134-B2
优先权日:2010-06-21
标题:Facile route to the synthesis of resorcinarene nanocapsules
发明人：BALASUBRAMANIAN RAMJEE; KALAITZIS ZAHAROULA M; PRAYAKARAO SRUJANA
权利人:BALASUBRAMANIAN RAMJEE; KALAITZIS ZAHAROULA M; PRAYAKARAO SRUJANA; OLD DOMINION UNIV RES FOUND
摘要:Described is a direct method for the fabrication of resorcinarene nanocapsules by photopolymerization of compounds of formula (I), such as resorcinarene tetraalkene tetrathiol (RTATT), in the absence of any template or preorganization. Further, by varying the polymerization media, a variety of other polymeric architectures like lattices, fibrous networks, and nanoparticles were obtained. The morphology and structure were characterized by transmission electron microscopy, energy dispersive spectroscopy, scanning electron microscopy, dynamic light scattering, infrared and nuclear magnetic resonance spectroscopy. These morphologically distinct resorcinarene polymeric architectures contain residual thiol and ene functional groups offering potential functionalization opportunities.

专利号:US-9034978-B2
优先权日:2011-10-28
标题 :Methods of preparing metal quantum clusters in molecular confinement
发明人：THALAPPIL PRADEEP; THUMU UDAYABHASKARARAO
权利人:THALAPPIL PRADEEP; THUMU UDAYABHASKARARAO; INDIAN INST TECHNOLOGY MADRAS
摘要:Methods for the synthesis of metal quantum clusters within the framework of a porous gel matrix are described. For example, Ag 25 (glutathione) 18 quantum clusters are synthesized in a cross-linked polyacrylamide gel matrix. The methods can be performed on large-scale and yields monodispersed metal quantum clusters.