CAS: 829-84-5; Dicyclohexylphosphane

上下游产品

dicyclohexylphosphinoyl chloride P,P'-disulfidetetracyclohexyl-diphosphane-P,P'-disulfide cyclohexylmagnesiumchloride lithium dicyclohexylphosphidedicyclohexylphosphinic acid Dicyclohexyl-ethoxycarbonylmethyl-phosphin 1,2-bis-(dicyclohexylphosphino)ethane 1-cyclohexyl-phospholane

Dicyclohexylphosphine Oxide置于二异丁基氢化铝体系中,用 四氢呋喃 作为反应溶剂,化学反应 4.0H,以88%的收率获得产物二环己基膦
参考文献:一种还原仲膦氧化物的优异方法.
标题:一种还原仲膦氧化物的优异方法.
摘要:[反应:见正文]已发现氢化二异丁基铝(dibal-H)和三异丁基铝是仲氧化膦(spo)的杰出还原剂.所有类别的spo都可以轻松还原,包括二芳基,芳基烷基和二烷基成员.现在可以在低温下还原许多spo,并发现了保存可还原官能团的条件.即使是最富电子和位阻的膦氧化物,也可以在50-70摄氏度的温度下在几小时内还原.这种新的还原方法与现有技术相比具有明显的优势.
DOI:10.1021/ol0517832

专利信息

专利号:US-7205427-B2
优先权日:2002-06-04
标 题:Cross-coupling synthesis of alkyl (dialkylphenyl) indenes
发明人：BARNES HAMLIN H
权利人:BOULDER SCIENT CO
摘要:A cross-coupling synthesis of 2-alkyl-4-(2,6-dialkylphenyl)indenes is described. A 2-alkylidene is treated with a dialkylboronic acid in the presence of a catalyst. A feature of the invention is the use of a cross-coupling catalyst comprising palladium dichloride (1,5-cyclooctadiene) as a cross-coupling catalyst.

专利号:US-4879389-A
优先权日:1986-06-25
标题:Chiral phosphinopyrrolidine compounds and their use for asymmetric synthesis of optically active compounds
发明人：ACHIWA KAZUO
权利人:ACHIWA KAZUO
摘要:New chiral phosphinopyrrolidine compounds of the general formula: (I) or (I') wherein R1 is a hydrogen atom, -COR, -COOR, -CONHR or -SO2-R where R is an alkyl or aryl group, R2 and R3 each represents independently an aryl group which may have a substituent or substituents, and R4 and R5 each represents independently an aliphatic or cycloaliphatic hydrocarbyl group which may have a substituent or substituents, as well as the use of these compounds as ligand for a metal complex catalyst for asymmetric synthesis of optically active compounds. The new chiral phosphinopyrrolidine compounds are useful ligands which attain both of high optical yield and high reaction efficiency in catalytic asymmetric reduction.

专利号:WO-2024061900-A1
优先权日:2022-09-20
标题 :Quantum dot shell synthesis
发明人：WALRAVENS WILLEM; NAKONECHNYI IGOR; MACINTYRE BROWN ALASDAIR ANGUS; PRATO MODESTINO RAFAEL ALBERTO; GRIGEL VALERIIA
权利人:QUSTOMDOT BV
摘要:The invention relates to the synthesis of core/shell/shell quantum dots, particularly to a novel shell synthesis method.

专利号:US-8716507-B2
优先权日:2008-10-31
标题 :Iron(II) catalysts containing diimino-diphosphine tetradentate ligands and their synthesis
发明人：MIKHAILINE ALEXANDRE; FREUTEL FRIEDERIKE; SUI-SENG CHRISTINE; MEYER NILS; MORRIS ROBERT H; LAGADITIS PARASKEVI OLYMPIA
权利人:MIKHAILINE ALEXANDRE; FREUTEL FRIEDERIKE; SUI-SENG CHRISTINE; MEYER NILS; MORRIS ROBERT H; LAGADITIS PARASKEVI OLYMPIA; GOVERNING COUNCIL OF UNIVERSITY OF TORONTO
摘要:New hexa-coordinate iron (II) complexes comprising compounds of formula (I) are described. These compounds comprise a tetradentate ligand with donor atoms comprising nitrogen and phosphorus. These complexes are shown for the first time to be useful catalysts for the hydrogenation of ketones, aldehydes, or imines to produce alcohols or amines, and the asymmetric hydrogenation of prochiral ketones or imines to produce non-racemic alcohols or amines. The source of the hydrogen can be hydrogen gas or a hydrogen-donating molecule such as isopropanol or hydrogen-donating mixture such as formic acid and an amine depending on the structure of the catalyst. In certain embodiments, the axial ligands on the catalyst comprise organonitrile ligands, carbonyl ligands, isonitrile ligands, or combinations thereof. The catalysts and the preparation thereof are disclosed. A reaction using phosphine and diamine precursors that is templated by the iron ion is the preferred route to the catalysts.

专利号:WO-2018069146-A1
优先权日:2016-10-11
标题 :Method for the synthesis of pheromones
发明人：QUEVAL PIERRE; CAIJO FRÉDÉRIC; ROUEN MATHIEU; TRIPOTEAU FABIEN
权利人:DEMETA
摘要:The present invention relates to a method for synthesising pheromones and pheromone precursors, by means of the metathesis of terminal olefins including one functionalised olefin. The reaction is carried out in the presence of at least one particular catalyst, selected from among complexes of alkylidene ruthenium comprising a 1-aryl-3-cycloalkyl-imidazoline-2-ylidene ligand and mixtures thereof. The method can include an additional step of reducing the unsaturated compound formed.

专利号:EP-1582527-A1
优先权日:2004-03-31
标题:Synthesis of phosphorus based ligands
发明人：BERENS ULRICH
权利人:CIBA SC HOLDING AG
摘要:Chiral ligands of the formula I or II, may be obtained in high enantiomeric purity from compounds of the formulae III or IV, respectively, with suitable phosphines, where the symbols R₁, R, n, R₃, R₄, R' are as described in claim 1. The products may be converted into transition metal complexes which are useful as catalysts for asymmetric hydrogenation reactions.