CAS: 630-03-5; Nonacosane

上下游产品

Ginnon nonacosan-15-one decane caprinaldehyde

📜1-Hydroxyhexadecan-7-One置于sodium Tetrahydroborate,二苯甲酮,N-羟基邻苯二甲酰亚胺,草酰氯,二甲基亚砜体系中,用 甲醇,乙醇,二氯甲烷 作为反应溶剂,化学反应 96.5H,反应生成 正二十九烷
参考文献:通过光诱导的hat引发分子间烯烃加氢酰化的一般方法:长链脂肪族酮和功能化脂肪酸的高效合成
标题:通过光诱导的hat引发分子间烯烃加氢酰化的一般方法:长链脂肪族酮和功能化脂肪酸的高效合成
摘要:本文介绍了一种通过使用光诱导氢原子转移(hat)引发对未活化底物进行分子间自由基加氢酰化的操作简单,对环境无害且有效的方法.使用可商购和廉价的光引发剂(ph 2 Co和nhpi)使该方法具有吸引力.烯烃加氢酰化方案适用于多种带有许多官能团和许多复杂结构单元的底物.该反应证明是可扩展的(最大5 G).可以使用该方案合成不同的官能化脂肪酸,石化产品和天然存在的烷烃.自由基链机制与该过程有关.
DOI:10.1002/chem.202004946

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:EP-4151643-A1
优先权日:2021-09-16
标题 :Improved process for production of phosphoesters of glufosinate precursors
发明人：LAUTENSCHÃœTZ LUDGER; BRAUNE SASCHA; PÖTTER MARKUS
权利人:EVONIK OPERATIONS GMBH
摘要:SummaryThe present invention relates to a method for production of a compound according to formula (I):wherein R is alkyl, aryl, alkaryl, aralkyl,and wherein X is selected from the following structures (I-A), (I-B):wherein R¹, R² are independently selected from the group consisting of alkyl, aryl, alkaryl, aralkyl.The compounds according to formula (I) are important precursors in the synthesis of glufosinate, in particular L-glufosinate. In the method according to the present invention, easily accessible starting materials are employed. Thus, the method overcomes the disadvantages of prior art syntheses of L-glufosinate and its intermediates.

专利号:US-10227300-B2
优先权日:2015-01-22
标题 :Synthesis of triacetonediamine compounds by reductive amination proceeding from triacetonediamine and derivatives thereof
发明人：WILLY BENJAMIN; NIEMEYER JOCHEN; KREILKAMP GUENTER; VOM BRUCH BEATRIX; NEUMANN MANFRED; KEUP MICHAEL
权利人:WILLY BENJAMIN; NIEMEYER JOCHEN; KREILKAMP GUENTER; VOM BRUCH BEATRIX; NEUMANN MANFRED; KEUP MICHAEL; EVONIK DEGUSSA GMBH
摘要:An N-substituted triacetonediamine compound is prepared by reacting 4-amino-2,2,6,6-tetramethylpiperidine or a derivative thereof with a carbonyl compound in a reductive amination, wherein reductive conditions are established by conducting the reaction in the presence of hydrogen and in the presence of a supported catalyst, wherein the supported catalyst includes at least one metal M, wherein the metal M is selected from the group consisting of V, Cr, Mo, Mn, Ni, Pd, Pt, Fe, Ru, Os, Co, Rh, Ir, and Cu.

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.

专利号:WO-2022257271-A1
优先权日:2021-06-08
标 题:Synthesis of eribulin mesylate

专利号:WO-2006027069-A1
优先权日:2004-09-07
标 题 :Method for producing heterocyclic quaternary ammonium and/or guanidinium compounds
发明人：DEGEN GEORG; EBEL KLAUS
权利人:BASF AG; DEGEN GEORG; EBEL KLAUS
摘要:The invention relates to a method for producing an intermediate product containing a heterocyclic quarternary ammonium and/or guanidium cation, for the synthesis of heterocyclic quaternary ammonium and/or guanidium compounds. According to said method, heterocyclic quaternary ammonium and/or guanidium carboxylates are oxidised with an oxidising agent in the presence of a metal from groups 8 to 10 of the periodical table, at a temperature of between 0 and 250 °C and a pressure of between 0.05 and 20 MPa abs.