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Benzenamine, N,N'-1,2-acenaphthylenediylidenebis[2,6-dimethyl- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

202277-68-7

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202277-68-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 202277-68-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,2,2,7 and 7 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 202277-68:
(8*2)+(7*0)+(6*2)+(5*2)+(4*7)+(3*7)+(2*6)+(1*8)=107
107 % 10 = 7
So 202277-68-7 is a valid CAS Registry Number.

202277-68-7Relevant academic research and scientific papers

Simple and Strong Dative Attachment of α-Diimine Nickel (II) Catalysts on Supports for Ethylene Polymerization with Controlled Morphology

Kianfar, Ehsan,Azimikia, Reza,Faghih, Seyed Mohammad

, p. 2322 - 2330 (2020)

Abstract: In this article, preparation of novel spherical MgCl2 supported α-diimine nickel (II) catalysts for ethylene polymerization in slurry phase is reported. α-Diimine ligands were synthesized by condensation reaction of 2, 6-disubstituted alkyls or aryls anilines and Ace naphthoquinone Which have hydroxyl functionality in their para-position. Hydroxyl functionalized α-diimine attached strongly on to the spherical MgCl2 support surface by dative bonding. No linker was needed to attach the complexes onto the support surface and the amount of loaded Nickel was controllable to improve morphology and especially bulk density of polymer powder. A significant reduction in catalysts activity has happened when homogeneous catalysts were supported onto silica but this reduction was decreased when they were supported onto thermally treated spherical MgCl2. As homogeneous bis(N,N′-(4-(3-hydroxyl-propyl)-2,6-di[(4-tert-butyl-phenyl)-phenyl) amino] Ace naphthoquinone Nickel dibromide(d) showed the highest activity among other evaluated homogeneous catalysts, its MgCl2 supported catalyst (d/S-MgCl2) has shown the highest activity among MgCl2 supported catalysts too. These MgCl2 supported catalysts were pre-polymerized in presence of ethylene monomer in the mild polymerization condition to yield a pre-polymerized catalyst with polymer/catalyst weight ratio equal to six. Ethylene polymerization was carried out to make spherical particles of polyethylene without reactor fouling by these pre-polymerized catalysts. Clearly, it is shown in SEM images that the spherical morphology of MgCl2 support is replicated in the produced polymer. The molecular weight and molecular weight distribution of produced polymer with MgCl2 supported catalysts were higher than those produced by homogeneous catalysts. Graphic Abstract: α–Diimine nickel (II) complexes have hydroxy functionality where produce strong dative bonding onto spherical MgCl2. This bonding is strong enough that these catalysts are suitable for slurry polymerization of ethylene without reactor fouling due to catalyst leaching from support. The chemical structure of MgCl2 leads to high active supported catalysts. The molecular weight and polydispersity index of produced polymrers using these supported catalysts are higher than those produced by equivalent homogeneous catalysts and are controllable by selection of appropriate ligand for used α–diimine nickel (II) complex or hydrogen concentration in ethylene polymerization.[Figure not available: see fulltext.].

Vanadium chlorides supported by BIAN (BIAN?=?bis(arylimo)-acenaphthene) ligands: Synthesis, characterization, and catalysis on ethylene polymerization

Xu, Shu-yun,Chen, Xue-meng,Huang, Li-cheng,Li, Feng,Gao, Wei

, p. 146 - 151 (2019/03/14)

Several vanadium chlorides bearing bis(arylimino)-acenaphthene (BIAN) ligands, (2,6-Me2C6H3-BIAN)V(THF)Cl3 (1), (2,6-Et2C6H3-BIAN)V(THF)Cl3 (2), (2,6-iPrsu

Chain-Walking Polymerization of Linear Internal Octenes Catalyzed by α-Diimine Nickel Complexes

Wang, Fuzhou,Tanaka, Ryo,Li, Qingshan,Nakayama, Yuushou,Shiono, Takeshi

supporting information, p. 1358 - 1367 (2018/05/23)

The chain-walking polymerization of linear internal alkenes (i.e., trans-2-, 3-, and 4-octenes) using α-diimine nickel catalysts activated with modified methylaluminoxane (MMAO) was studied in comparison with the corresponding terminal alkene polymerization. The rates of polymerization were found to decrease in the following order: 1-octene > 4-octene ≥ 2-octene ≥ 3-octene. The obtained branched poly(2-octene)s and poly(4-octene)s with high molecular weight and Mw/Mn less than 2 were amorphous polymers with low glass transition temperature (Tg) of approximately -66 °C. At 0 °C, 4-octene polymerized in a living/controlled manner. The NMR analyses of the polymers showed that the chain-walking polymerization of 4-octene gave periodically branched polymers with the constant branching density, while that of 2-octene gave the polymer possessing fewer branches than the expected value due to monomer-isomerization. The (n+2),(n+3)- and (n+3),(n+2)-insertions of the internal (n+2)-alkene [CH3(CH2)nCH=CH(CH2)mCH3] followed by chain-walking were confirmed by the 13C NMR analysis of the produced polymers.

Synthesis and the Optical and Electrochemical Properties of Indium(III) Bis(arylimino)acenaphthene Complexes

Wang, Jingyi,Ganguly, Rakesh,Yongxin, Li,Díaz, Jesus,Soo, Han Sen,García, Felipe

supporting information, p. 7811 - 7820 (2017/07/22)

Aryl bis(imino)acenaphthenes (Ar-BIANs) are well-established rigid and sterically bulky diimine ligands, which are redox-noninnocent and versatile π-acceptors due to their low-lying π? orbitals and are frequently used to bind transition metals. However, t

Highly cis-1,4 selective polymerization of isoprene promoted by α-diimine cobalt(II) chlorides

Wang, Xinxin,Fan, Linlin,Huang, Chuanbing,Liang, Tongling,Guo, Cun-Yue,Sun, Wen-Hua

, p. 3609 - 3615 (2016/10/04)

A series of 1,2-bis(arylimino)acenaphthylenes (L1–L5) was synthesized and reacted with CoCl2 to afford the corresponding cobalt complexes LCoCl2 (C1–C5). All cobalt complexes have been fully characterized and in the case of C1 by sin

Pd-diimine: A highly selective catalyst system for the base-free oxidative heck reaction

Gottumukkala, Aditya L.,Teichert, Johannes F.,Heijnen, Dorus,Eisink, Niek,Van Dijk, Simon,Ferrer, Catalina,Van Den Hoogenband, Adri,Minnaard, Adriaan J.

supporting information; experimental part, p. 3498 - 3501 (2011/06/22)

Pd(OAc)2/3 is an efficient catalyst system for the base-free oxidative Heck reaction that outperforms the currently available catalysts for the more challenging substrates studied. The catalyst system is highly selective, and works at room temperature with dioxygen as the oxidant.

Chromium complexes with acenaphthene imine derivative ligands synthesis and catalysis on diene polymerization

Gao, Bo,Gao, Wei,Wu, Qiaolin,Luo, Xuyang,Zhang, Jingshun,Su, Qing,Mu, Ying

body text, p. 5480 - 5486 (2011/12/13)

Treatment of the bis(arylimino)acenaphthene (BIAN) ligands with CrCl 2(THF)2 in THF affords mononuclear complexes of ArBIANCrCl2(THF)2 (3a, Ar = 2- iPrC6H4; 3b, Ar = 2

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