Electrochemical
probing of polymethylalumoxane by pyridine
As is known [5], organoaluminum compounds AlR3. (and their dimers (AlR3)2) react with electron donors. (D) with the formation of acid-base complexes D ...
www.springerlink.com/index/W7370350H6105KLM.pdf
A
Theoretical Investigation of the Role of AlR3 as
Cocatalyst
In the present paper, we study the role of AlR3 (R = CH3, Cl) as cocatalyst for the Ziegler–Natta ... mation of dimeric complexes; such species could be precur- ...
www.springerlink.com/index/G72Q4W77X4P11G04.pdf
Thermodynamics
and Thermochemistry of Organoaluminum ...
joint vaporization of monomers AlR3 and dimers. Al2R6, their enthalpies and entropies of vaporization, as well as the enthalpies and entropies of dissociation ...
www.springerlink.com/index/L7226R803291X471.pdf
The
thermodynamic parameters of formation of ions in the
...
minum-containing compounds AlR3, where R is a halo- gen or alkyl, and their ..... shows that one Al–Me–Al bridge of the dimer cleaves when this anion is ...
www.springerlink.com/index/U8136712T0115X7M.pdf
Selective
dimerization of ethylene to but-1-ene under the
conditions ...
dimerization into but-1-ene on the Ti(OR)4–AlR'3 cata- lytic system has been considered in [5]. The technology of dimerization in the “Alfa- okhtol” variant (Fig.
www.springerlink.com/index/d3729103q4325444.pdf
Propylene
Dimerization in the Presence of Nickel Hydride
...
alkyl, Ph), and AlR3 – nCln (n = 0, 1, 2) that interaction of components of the catalytic ... selectivity in the propylene dimerization reaction, as well as the modifying ...
www.springerlink.com/index/0721M86068518040.pdf
Low-Pressure
Radical Polymerization of Ethylene Initiated by
...
oped [6, 7], namely, AlR3–L–C9H18N. (1), ... the transformation of the initial dimeric form of the OAC ... Ethylene polymerization initiated by the AlR3–L– C9H18N ...
www.springerlink.com/index/X2873514Q5060878.pdf
Selective
Dimerization, Oligomerization, Homopolymerization
and ...
of selective dimerization of ethylene into butene-1 at the action of catalytic system Ti(OC4H9)4–AlR3. These researches are protected by about 40 of Inventor ...
www.springerlink.com/index/q855302l27n126qk.pdf
Formation
and nature of catalysts based on nickel (0) phosphine
...
dimerization and oligomerization by nickel complexes has been the subject of ... AlR3 ⎯nCln organoaluminum compounds (n = 0, 1, 2) with Ni(acac)2 and with ...
www.springerlink.com/index/0V52235288045761.pdf
Reactions of
AlR3 (R ) Me, Et) with H2NCH2CH2NMe2: Synthesis
...
Reactions of AlR3 (R ) Me, Et) with H2NCH2CH2NMe2: .... dimeric amidoalane [ Me2Al-µ-N(H)NMe2]2 as a mixture ..... If the dimerization reaction is a cycload- ...
jtpark.kaist.ac.kr/pdf/47.pdf
Magnesium
Bulk metal relatively inert as e- used in bonding
...
molecular weight organyls e.g. BMe3 do react readily with O2. The lack of hydrolysis contrasts with AlR3 ⇒ Al(OH)3. 3. AlR3BR3 dimers like (AlR3)2 show rapid ...
www.tcd.ie/Chemistry/staff/people/sd/lectures/jsmgo2.pdf
Reactivity of I-Aza-4-oxa-I ,3-butadienes (a- I mino Ketones)
toward ...
(AlR3)2 occur and have been studied by NMR spectrometry. Addition ... The 1:l A1R3:a-imino ketone coordination complexes react further to dimeric addition ...
igitur-archive.library.uu.nl/chem/2005-0622-180820/10597.pdf
Reactivity of l-Aza-4-oxa-I ,3-butadienes (a-Imino Ketones) toward
...
a-imino ketones with the AlR3, ZnCI,, and PtC12(PR3) moieties containing the .... in benzene at 60 "C afforded in 3 h dimeric [EtZn(t-Bu)-. N=C(H)C(Me,t-Bu)O], ...
igitur-archive.library.uu.nl/chem/2005-0622-180810/10603.pdf
13C nuclear
magnetic resonance study of five- and six-coordinated
Natl. Acad. Sci. USA 74 (1977). Table 1. 13C NMR parameters of trialkylaluminum dimers (AlR3)2*. Bridging group. Terminal group. Solvent/temp., . R. OCCH ...
www.pnas.org/content/74/12/5217.full.pdf
Supporting Information
Mar 4, 2011 ... tion process as well as the Cys-mediated monomer/dimer equili- ..... (1, 1′) C71S CRAC sf-ALR, (2, 2′) C74S CRAC sf-ALR, (3, 3′) C53S ...
www.pnas.org/content/suppl/2011/03/04/.../pnas.1014542108_SI.pdf
An
antibody inhibitor of the LMO2-protein complex blocks its normal
...
Apr 28, 2008 ... affinity scFv ALR1 showed no ability to interfere with this dimerization. However, ALR3 expression was able to inhibit LMO2 homodimerization ...
www2.mrc-lmb.cam.ac.uk/archive/papers/2008-061.pdf
Aluminum Alkyl Complexes Containing Bidentate, Mono- or di
...
Dimeric aluminum complexes, {[C4H3N-. (CH2NMe)-2]AlR}2 (2a, R = Me; 2b, R = Et), can be obtained via metathesis by heating AlR3 and with one equiv of ...
proj3.sinica.edu.tw/~chem/servxx6/files/paper_7299_1233800839.pdf
Selective Ethylene
Dimerization Toward 1-butene by a New Highly
...
hydrocarbon reactions", Elsevier, Amesterdam, 1975, pp. 507-516. [3] A. W. Al- Sadoun, "Dimerization of ethylene to butene-1 catalyzed by. Ti (OR') 4-AlR3", ...
www.ijcea.org/papers/48-E059.pdf
Effect of Two Halohydrocarbons as New Promoters Suitable for
...
Catal. Today, Vol. 14, No. 1, pp. 1-124, 1992. [3] A. W. Al-Sadoun, “Dimerization of Ethylene to Butene-1 Catalyzed by Ti(OR')4-AlR3”, Appl. Catal. A: Gen., Vol.
www.iaeng.org/publication/WCECS2011/WCECS2011_pp646-650.pdf
[Ti(OC4H9)4/2,5-Dimethoxytetrahydrofuran/
TEA/Ethylene ...
ethylene dimerization and more specifically, the concomitant by- ... these products, ethylene dimerization to 1-butene appears to ..... (OR')4-AlR3", Appl. Catal.
www.waset.org/journals/waset/v77/v77-54.pdf
butene at ethylene dimerization reaction -
IEEE
515-523. [2] Abdul Wahab Al-Sadoun, "Dimerization of ethylene to butene-1 catalyzed by Ti (OR') 4-AlR3", J. Applied Catalysis A: General, vol. 105, 1993, pp.
ieeexplore.ieee.org/iel5/5550968/5560343/05560380.pdf?arnumber...
Kinetics of Propylene Polymerization by Hafnocene Diamide
Catalyst
conditions. The alkylation of rac-1 to rac-(EBI)HfR2 by using AlR3 needs more time ..... dimeric species may not be relevant to the present. Figure 4 UV/VIS ...
mslab.polymer.pusan.ac.kr/english/international/2000/31.pdf
MAO-Free Polymerization of Propylene by rac- Me2Si(1-C5H2-2-Me
...
plexes with AlR3 or other reagents followed by ion- ... of rac-1 with AlR3 and then with 2, the formation ..... out by using AlEt3, which exists as a dimer in solution ...
mslab.polymer.pusan.ac.kr/english/international/-1999/29.pdf
Dimerization of ethylene to butene-1 occurs in a CSTR with
a ...
Butene-1 is produced from ethylene by dimerization reaction in a CSTR. ... The ethylene dimerization process is strongly nonlinear and very sensitive to external ...
faculty.ksu.edu.sa/Emad.Ali/mypublication/paper25.pdf
New Syntheses of Active Solid Catalysts for Ethylene
Dimerization
The dimerization of alkenes is an important method for the production of higher ... for ethylene dimerization.1-8 In the previous papers from our laboratory, it has ...
pdf.easechem.com/pdf/32/42c1f64b-8b4f-4ed2-831b-5f71202f36b1.pdf
CHAPTER 4
DIMERIZATION AND TRIMERIZATION OF DIENES ... FUNCTIONAL OLEFIN DIMERIZATION ..... modifications of the TiCl3/AlR3 systems developed by ...
faculty.kfupm.edu.sa/.../CHAPTER 4_
Bonding
Energies and Structural Study of Alkylaluminium①
The geometries and bonding energies of AlR3. (R = H ... our methods, the dimer of [Al(CH3)3]2 was fully ... We selected AlR3 to fully optimize their structures ...
jghx.fjirsm.ac.cn/jghx/2010No6/601-4105.pdf
Ethylene
dimerization and catalyst therefor
1211 APPL N0-I 320433 An ethylene dimerization process catalyzed by a heter-. [22] Film; Jam 14' 1992 ..... luminum compound of the formula AlR'3 where R' is ...
www.google.com/patents/US5166114.pdf
Process for the
conversion of ethylene into but-1-ene using additives
...
Apr 24, 1997 ... the synthesis of but-1-ene by the dimerization of ethylene. by virtue of ..... one aluminum compound of the formula AlR3 or AIRQH. each of the ...
www.google.com/patents/US5792895.pdf
Interesting
Reaction of the Indanone Oximes Under Beckmann
...
MsOH, TsCl, AlR3, etc. ... The unexpected dimeric structure of 5 (30% from 6)5 was deduced on the ... dimer (5) along with a small amount of recovered start- ...
144.206.159.178/FT/116/51491/902067.pdf
Ni-exchanged
AlMCM-41—An efficient bifunctional catalyst for
...
neous catalysts are AlR3 (Ziegler type) and Me(OR)4–AlR3. (Ziegler–Natta type) [1]. ... tive for ethylene dimerization (after a 24-h reaction pe- riod, in a static ...
144.206.159.178/FT/2952/567122/12101803.pdf
Synthesis and
reactivity of Al(Et)q? 2 (q?0/2-methyl-8-quinolinolato
...
dimeric aluminum complex ([Al(R)2q]2) [6]. The crystal structure of the [Al(R)2q]2- type complex has not been determined. We thought that 1:2 reaction of AlR3 ...
144.206.159.178/FT/632/63947/1088613.pdf
New divalent
samarocenes for butadiene polymerisation: influence
...
groups [10]) or AlR3/[Ph3C][B(C6F5)4] (R ¼ Me, Et, ... polymerisation in the presence of AlR3/[Ph3C] ... connected to the presence of both dimeric 10a and mo- ...
144.206.159.178/FT/632/206606/5194470.pdf
Catalytic
Ethylene Dimerization and Oligomerization: Recent
...
al.1 that, in the AlR3-catalyzed “growth reaction” (Aufbau- reaktion)2 of .... the dimerization of R-olefins.1,3,38 Another characteristic of nickel catalysts in R- olefin ...
www.chem.ccu.edu.tw/.../Acc. Chem. Res. 2005, 38, 784-
Reactions of Zinc Dialkyls with
(Perfluorophenyl)boron Compounds ...
presence of AlR3 or tetraphenylcyclopentadiene, to give. [RZn(crown)]+X- (X ) AlR4, .... an equilibrium between various dimeric aluminum species is established ...
www.uea.ac.uk/.../1.
Synthesis, Structures, and Ring-Opening Polymerization Reactions
...
and with AlR3 and [Ph3C][B(C6F5)4] (R ) Me, Et and ... AlR3 or tetraphenylcyclopentadiene, to give [RZn- .... bridged dimer in the solid state ( Figure 3). Although ...
www.uea.ac.uk/.../1.70485!synthesis, structures, and ring-
CHM 8302 Homework 2 2010
All problems are equal value. 1 ...
dimerize to give ethane. ... Likely steps are dimer dissociation followed by transformation via β−elimination of an alkene in ... AlR3 + R'NH2 → AlR2(R'NH) + RH ...
mysite.science.uottawa.ca/.../
Organo Rare Earth Metal Catalysis for the Living Polymerizations of
...
nard reagent in THF [11], and some AlR3 complexes [12]. Although the. Fig. 1. ...... structure of dimer complexes, [(CF3C)(µ2-O)2(µ3-O)4YAlEt2(THF2)]2 and ...
ftp://210.45.114.81/physics/书籍/其他/Springer/3418/.../90020255.pdf
Catalyst suitable for synthesizing 1-butene by
dimerization of ethylene
10:1, with an aluminum compound of formula AlR3 or. AlR;H,_wherein R is a ... embodiment of the dimerization catalytic reaction, con- ducted in batch, a ...
www.google.com.vn/.../Catalyst_suitable_for_synthesizing_1_but.pdf?...
Dimerization
catalyst systems and processes
This invention relates to ethylene dimerization, di- ... proved catalyst system for the dimerization of ethylene. .... AlR3, AIRZX, AlRX;, AIRQOR, ALRXOR, and/or ...
www.google.pl/patents/US5320993.pdf
Production of
propylene employing dimerising ethylene to 1-butene
...
AlR3 (in which R3 is a hydrocarbyl radical containing 1 to 6 carbon atoms). However, to obtain sufiicient selectivities for dimers. (1-butene), such catalytic ...
www.google.pl/patents/US7868216.pdf
A qualitative
model for polymerisation of propylene with a MgCl2
...
the solution by the cocatalyst AlR3. Different rates ... Ti2Cl8-dimers, which are coordinated to the edges of ... consists of an internal donor next to a Ti2Cl8-dimer .
144.206.159.178/FT/352/184278/4707947.pdf
Propylene bulk
phase oligomerization with bisiminepyridine iron
...
and the dimers and trimers analyzed using analytical gas chromatography, 1H- NMR- and ... (MMAO) or Ph3C[B(C6F5)4] and AlR3 [9Á/16,21]. We recently ...
144.206.159.178/FT/632/198615/14341046.pdf
Homogeneous Chromium Catalysts for Olefin Polymerization
for not requiring any cocatalyst (e.g. AlR3 or methyl alu- merization of small .... dimerization of the unsaturated species by electrostatic re- aluminum alkyl and at ...
www.lifesci.sussex.ac.uk/research/...630.../homogenous_cr_thoepold.pdf
759-788 CAP 12.2 INGLESE
interactions for the proposed active site, demonstrated that the epitactic growth of Ti2Cl6 dimers (derived from the reduction of Ti2Cl8 with AlR3) on surface (100) ...
www.treccani.it/export/sites/default/Portale/.../759-788_ING3.pdf
The elements in the long form of the periodic table have been
...
chloride with the appropriate Grignard reagent. AlCl3 + 3RMgI. ALR3. These are electron deficient compounds and exists as bridged dimers. H3C. CH3. CH3. Al ...
nsdl.niscair.res.in/.../revised+Chemistry+of+s&p+block+elements+
Electronic
and steric factors affecting the formation of four or five
...
The reaction of 2-methoxybenzyl alcohol with AlR3 gives a semi- pentacoordinated dimeric product [(v-OCH2C6H4OMe)AlR2]2 (5, R=Me; 6, X= Bui) in high ...
beaman13.sg1001.myweb.hinet.net/pub/JOMC1999P67.pdf
Solvent
Extraction of Aluminum from Hydrochloric, Nitric and Sulfuric
...
<"i(AlR3 - mRH),,., + 3xH+ , (l) where RZHZ denotes the dimer of DEHEHP, x is the degree of polimerization of the ex- tracted species, m is the number of ...
www.jim.or.jp/journal/e/pdf3/24/11/759.pdf
Alkene/Alkyne
Hydrozirconation
Dimerization, Oligomerization, Polymerization. LnMn. R. R = CH3 ... oxidation state change to the metal throughout the cycle. LnMn. H. R dimer ... TiCl4/AlR3 n ...
www.scs.illinois.edu/white/lectures/week9a.pdf
Synthesis of (R)-Muscone More resources available at www
...
be compared with AlCl3 or BH3 which also form dimers to get their electrons). .... AlR3. Hydroalumination occurs in an antifashion (H transfered and Iodine are ...
chemistforchrist.de/Organische Chemie/.../pdf-files/Muscone.pdf
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