Gram-Scale Preparation of Acyl Fluorides and Their Reactions with Hindered Nucleophiles
作者:Michał Barbasiewicz、Michał Tryniszewski
DOI:10.1055/a-1649-5460
日期:2022.3
A series of acyl fluorides was synthesized at 100 mmol scale using phase-transfer-catalyzed halogen exchange between acyl chlorides and aqueous bifluoride solution. The convenient procedure consists of vigorous stirring of the biphasic mixture at room temperature, followed by extraction and distillation. Isolated acyl fluorides (usually 7–20 g) display excellent purity and can be transformed into sterically
ORGANOMETALLIC COMPOUND AND METHOD OF MANUFACTURING INTEGRATED CIRCUIT USING THE SAME
申请人:SAMSUNG ELECTRONICS CO., LTD.
公开号:US20210388010A1
公开(公告)日:2021-12-16
An organometallic compound and a method of manufacturing an integrated circuit (IC) device, the organometallic compound being represented by Formula (I),
一种有机金属化合物和一种制造集成电路(IC)器件的方法,该有机金属化合物由式(I)表示,
Origin and Use of Hydroxyl Group Tolerance in Cationic Molybdenum Imido Alkylidene N‐Heterocyclic Carbene Catalysts
作者:Roman Schowner、Iris Elser、Mathis Benedikter、Mohasin Momin、Wolfgang Frey、Tanja Schneck、Laura Stöhr、Michael R. Buchmeiser
DOI:10.1002/anie.201913322
日期:2020.1.7
molybdenum imido alkylidene N-heterocycliccarbene (NHC) complexes has been investigated. A wide range of catalysts was prepared and tested. Most cationic complexes can be handled in air without difficulty and display an unprecedented stability towards water and alcohols. NHCcomplexes were successfully used with substrates containing the hydroxyl functionality in acyclic diene metathesis polymerization, homo-
[EN] USE OF IMMOBILIZED MOLYBDEN- UND TUNGSTEN-CONTAINING CATALYSTS IN OLEFIN CROSS METATHESIS<br/>[FR] UTILISATION DE CATALYSEURS IMMOBILISÉS CONTENANT DU MOLYBDÈNE ET DU TUNGSTÈNE DANS LA MÉTATHÈSE CROISÉE DES OLÉFINES
申请人:XIMO AG
公开号:WO2015003814A1
公开(公告)日:2015-01-15
Method of forming an olefin from a first olefin and a second olefin in a metathesis reaction, comprising step (i): (i) reacting the first olefin with the second olefin in the presence of a silica supported Mo- or W-alkylidene catalyst, wherein the first olefin and the second olefin are different from one another.
作者:Michael R. Buchmeiser、Suman Sen、Christina Lienert、Laura Widmann、Roman Schowner、Katharina Herz、Philipp Hauser、Wolfgang Frey、Dongren Wang
DOI:10.1002/cctc.201600624
日期:2016.8.22
Mo–imido alkylidene N‐heterocyclic carbene (NHC) complexes (1–15) and of the first complexes containing bidentate NHC‐phenolate ligands (16–18) are reported. Mo(N‐2,6‐Me2‐C6H3)((1‐R‐phenethyl)‐3‐mesitylimidazolidin‐2‐ylidene)(CHR)(OTf)2 (R=CMe2Ph, 1) is the first enantiomericallypure Mo–imido alkylidene NHC catalyst. With [Mo(N‐2,6‐Me2‐C6H3)(IMes)(CHR)(CH3CN)(OTf)(CH3CN)+ B(ArF)4−] (7), turnover numbers
一系列的Mo-酰亚胺的亚烷基N-杂环卡宾(NHC)络合物(的合成和单晶X射线结构1 - 15和含二齿NHC-酚配体的第一复合物的()16 - 18)的报告。Mo(N ‐2,6-Me 2 ‐C 6 H 3)((1- R ‐苯乙基)‐3‐甲酰亚胺咪唑啉‐2亚烷基)(CHR)(OTf)2(R = CMe 2 Ph,1)为第一个对映体纯的Mo-酰亚胺亚烷基NHC催化剂。与[Mo(N ‐2,6‐Me 2 ‐C 6 H 3)(IMes)(CHR)(CH3 CN)(OTf)(CH 3 CN)+ B(Ar F)4 − ](7),在1-辛烯和1-壬烯的同质复分解(HM)中,营业额高达545 000 E)。使用7和1-壬烯,可以确定8860 min -1的周转频率(TOF 4 min)。生产率和E / Z选择性与催化剂结构相关。对于1,Mo(N - 3,5 -Me 2 -C 6 H 3)(IMesH 2)(CHR)(OTf)2(9)和Mo(N