CAS: 629-99-2; N-Pentacosane

上下游产品

n-pentacos-9-one 13-pentacosanone pentacosane-2,6-dione disemicarbazone 2-Dodecyl-tetradecanenitrile

壬二酸置于氯化亚砜,一水合肼,Magnesium,溶剂黄146体系中,用 乙醚,辛醇 作为反应溶剂,化学反应 60.33H,反应生成 二十五烷
参考文献:奇数正构烷烃c 21,C 23,C 25,C 27和c 29的固溶和熔融转变的温度和焓
标题:奇数正构烷烃c 21,C 23,C 25,C 27和c 29的固溶和熔融转变的温度和焓
摘要:通过合成制备了极高纯度的正戊烷和庚烷的样品:描述了c 25和c 27的合成方法及其纯化的原始条件,特别是使用超临界二氧化碳萃取的方法.通过差示扫描量热法对c 25和c 27合成样品以及奇数同源正构烷烃(从c 21到c 29)进行了固-固转变和熔融转变的温度和焓的测量.结果显示了杂质影响的重要性,特别是对于c的δ和γ晶-晶转变温度25和c 27.还显示了有关这五个正构烷烃的温度,固-固和熔融转变的焓的文献的一些最新数据.
DOI:10.1021/je0003501

专利信息

专利号:US-2013095043-A1
优先权日:2010-06-29
标题 :Synthesis of high-performance iron oxide particle tracers for magnetic particle imaging (mpi)
发明人：BURDINSKI DIRK; BOHLENDER CARMEN; HAEX NICOLE P M
权利人:BURDINSKI DIRK; BOHLENDER CARMEN; HAEX NICOLE P M; KONINKL PHILIPS ELECTRONICS NV
摘要:The present invention relates to a method of forming iron oxide nanoparticles comprising the steps of (a) suspending iron oxide/hydroxide and oleic acid or a derivative thereof in a primary organic solvent; (b) increasing the temperature of the suspension by a defined rate up to a maximum of 340° C. to 500° C.; (c) aging the suspension at the maximum temperature of step (b) for about 0.5 to 6 h; (d) cooling the suspension; (e) adding a secondary organic solvent; (f) precipitating nanoparticles by adding a non-solvent and removing excess solvent; (g) dispersing said nanoparticles in said secondary organic solvent; (h) mixing the dispersion of step (g) with a solution of a polymer; and (i) optionally removing said secondary organic solvent. The present invention further relates to an iron oxide nanoparticle obtainable by the method, the additional modification, encapsulation and decoration of such nanoparticles, as well as the use of the nanoparticles as tracers for Magnetic Particle Imaging (MPI), Magnetic Particle Spectroscopy (MPS).

专利号:WO-2014004985-A1
优先权日:2012-06-29
标题 :1,4-azaborine compounds and methods of synthesis
发明人：LIU SHIH-YUAN; XU SENMIAO; KWONG RAYMOND C
权利人:STATE OF OREGON ACTING BY & THROUGH THE ST BOARD OF HIGHER EDUCATION ON BEHALF OF THE UNIVERSITY OF; UNIV DISPLAY CORP
摘要:A compound comprising a structure of formula A

专利号:US-5919990-A
优先权日:1996-10-15
标题:Reclamation of bisphenol tars as feedstock in the synthesis of aminophenylhydroxphenylalkanes
发明人：LIKIBI PARFAIT J M
权利人:GEN ELECTRIC
摘要:The disclosure is of a process for recovering valuable by-products of the condensation of phenol and a ketone from a mother liquor obtained for example upon crystallization of a 1:1 adduct of phenol and bisphenol, said mother liquor containing phenol, bisphenol, isomers, contaminant by-products of the condensation reaction of phenol with the ketone and acidic impurities. The mother liquor is distilled/evaporated leaving a tarry residue, which is the feedstock for the process of the invention. The recovery comprises heating the feedstock with proportions of an arylamine salt, to extract the bisphenol-A values as aminophenylhydroxylphenyl-alkanes.

专利号:US-7825268-B2
优先权日:2003-12-23
标 题:Alkoxylactones, alkoxylactams and alkoxythiolactams for controlling processes based on microbial interaction
发明人：STUMPE STEFAN; BREVES ROLAND; HUCHEL URSULA; JANSSEN FRANK; HAETZELT ANDRE
权利人:HENKEL AG & CO KGAA
摘要:Compounds of the Formula I, n nwherein A 1 is O or NH; A 2 is O or S; each of R 1 and R 2 is independently hydrogen, a methyl or C 2 -C 8 -saturated or mono- or doubly unsaturated, branched or linear hydrocarbon group; and R 3 is a C 1 -C 18 -saturated or mono- or doubly unsaturated, branched or linear hydrocarbon group wherein, each of R 1 , R 2 and R 3 comprises a heteroatom selected from the group consisting of O and S in the chain and/or is mono- or multiply-substituted by a substituent selected from the group consisting of halogen, hydroxy, C 1 -C 6 -alkyl, trifluoromethyl, C 1 -C 6 -alkoxy, C 6 -C 10 -aryl, and C 1 -C 6 -alkyl-C 6 -C 10 -aryl are useful for controlling the interaction process between microorganisms such as in the development and/or maturation of biofilms; multicellular swarm behavior; the concerted development of antibiotic resistances; the concerted synthesis of antibiotics; the concerted synthesis of pigments; the concerted production of extracellular enzymes; or the concerted production of virulence factors.

专利号:US-9896523-B2
优先权日:2015-06-26
标题 :Ziegler-Natta catalyst synthesis and process thereof
发明人：SINGH GURMEET; KUMAR NARESH; KAUR SUKHDEEP; BANTU BHASKER; KAPUR GURPREET SINGH; SHASHIKANT
权利人:INDIAN OIL CORP LTD
摘要:The present invention describes a process of preparing a catalyst for olefin polymerization comprising: (i) treating a magnesium metal with an organohalide along with an internal donor to obtain a reaction mixture having solid component (A); (ii) treating the reaction mixture having solid component (A) with an acyl halide to obtain a reaction mixture having solid component (B); and (iii) treating the reaction mixture having solid component (B) of step (ii) with a transition metal compound to obtain the catalyst. The present invention also relates to a process for preparation of a catalyst system from said catalyst and preparation of a polyolefins from the catalyst system.

专利号:US-2013089740-A1
优先权日:2010-06-29
标题:Synthesis and use of iron oleate
发明人：BURDINSKI DIRK; BOHLENDER CARMEN
权利人:BURDINSKI DIRK; BOHLENDER CARMEN; KONINKL PHILIPS ELECTRONICS NV
摘要:The present invention relates to a method of forming an iron oleate complex comprising the steps of: (a) dissolving an oleate in a low-order alcohol solvent at a temperature of about 35° C. to 65° C.; (b) adding a non-polar solvent to the solution of step (a); (c) adding an iron salt dissolved in a low-order alcohol to the solution of step (b); (d) agitating the solution of step (c) at a temperature of about 50° C. for at least 5 min; (e) cooling the reaction mixture of step (d) to a temperature of about 15° C. to 30° C.; (f) optionally filtering the reaction mixture of step (e); (g) separating the non-polar solvent phase from the low-order alcohol phase; (h) washing and drying the non-polar solvent phase; (i) removing volatiles from the non-polar solvent phase of step (h) by evaporation; and (j) mixing the product of step (i) with a polar solvent to yield a solid iron oleate complex. The present invention further relates to an iron oleate complex obtainable by the method of the invention, an iron oleate complex of formula I, the use of the iron oleate complex of the invention as precursor for the preparation of nanoparticles, and a method of forming iron oxide nanoparticles comprising the suspension of iron oxide/hydroxide and the iron oleate complex of the invention.