NDLI: Cyclocopolymerization of 1,6-heptadiene with ethylene by half-sandwich scandium catalysts

Please wait, while we are loading the content...

Synthesis and characterization of MH⋯HOR dihydrogen bonded ruthenium and osmium complexes (η$^{5}$-C$_{5}$H$_{4}$CH$_{2}$OH)MH(PPh$_{3}$)$_{2}$ (M = Ru, Os)

Synthesis, structure, and catalytic activity of rare-earth metal amides with a neutral pyrrolyl-functionalized indolyl ligand

Scandium terminal imido complex induced intramolecular C-N bond cleavage and transformation

Bimetallic amine-bridged bis(phenolate) lanthanide aryloxides and alkoxides: synthesis, characterization, and application in the ring-opening polymerization of rac-lactide and rac-β-butyrolactone

Lanthanide-catalyzed cyclocarbonylation and cyclothiocarbonylation: a facile synthesis of benzannulated 1,3-diheteroatom five- and six-membered heterocycles

Highly efficient nickel/phosphine catalyzed cross-couplings of diarylborinic acids with aryl tosylates and sulfamates

Copper-catalyzed direct oxidation and N-arylation of benzylamines with diaryliodonium salts

Ethylene (co-)polymerization by long-lifetime half-sandwich zirconium catalyst bearing a [SSO]-carborane ligand

Synthesis and characterization of titanium complexes bearing sulfoxide groups and their catalytic behaviors in ethylene homo- and copolymerization

Cyclocopolymerization of 1,6-heptadiene with ethylene by half-sandwich scandium catalysts

Synthesis of carborane-fused cyclobutenes and cyclobutanes

Biocatalytic desymmetrization of 3-substituted glutaronitriles by nitrilases. A convenient chemoenzymatic access to optically active (S)-Pregabalin and (R)-Baclofen

Tandem dual C(sp$^{3}$)-H/C(sp$^{2}$)-H functionalization: a radical cyclization of 2-isocyanobiphenyl with ether to 6-alkylated phenanthridine

Syntheses of amides via iodine-catalyzed multiple sp$^{3}$ C-H bonds oxidation of methylarenes and sequential coupling with N,N-dialkylformamides

Science in China Series B: Chemistry : Volume 57, Issue 7, July 2014

Science in China Series B: Chemistry : Volume 57, Issue 6, June 2014

Science in China Series B: Chemistry : Volume 57, Issue 5, May 2014

Science in China Series B: Chemistry : Volume 57, Issue 4, April 2014

Science in China Series B: Chemistry : Volume 57, Issue 3, March 2014

Science in China Series B: Chemistry : Volume 57, Issue 2, February 2014

Science in China Series B: Chemistry : Volume 57, Issue 1, January 2014

Science in China Series B: Chemistry : Volume 56

Science in China Series B: Chemistry : Volume 55

Science in China Series B: Chemistry : Volume 54

Science in China Series B: Chemistry : Volume 53

Science in China Series B: Chemistry : Volume 52

Science in China Series B: Chemistry : Volume 51

Science in China Series B: Chemistry : Volume 50

Science in China Series B: Chemistry : Volume 49

Science in China Series B: Chemistry : Volume 48

Science in China Series B: Chemistry : Volume 47

Science in China Series B: Chemistry : Volume 46

Science in China Series B: Chemistry : Volume 45

Science in China Series B: Chemistry : Volume 44

Science in China Series B: Chemistry : Volume 43

Science in China Series B: Chemistry : Volume 42

Science in China Series B: Chemistry : Volume 41

Science in China Series B: Chemistry : Volume 40

Cyclocopolymerization of 1,6-heptadiene with ethylene by half-sandwich scandium catalysts

Content Provider	Springer Nature Link
Author	Guo, Fang Nishiura, Masayoshi Li, Yang Hou, ZhaoMin
Copyright Year	2014
Abstract	The cyclocopolymerization of 1,6-heptadiene (HPD) with ethylene (E) by a series of half-sandwich scandium alkyl catalysts bearing various auxiliary ligands have been examined. Significant ligand influence on the copolymerization activity and selectivity was observed. In combination with one equivalent of [Ph$_{3}$C][B(C$_{6}$F$_{5}$)$_{4}$], the half-sandwich scandium dialkyl complexes bearing a Lewis base THF (1) or an NHC side arm (2) yielded the copolymer products together with cross-linked polymers in the copolymerization of HPD with ethylene. In contrast, the THF-free complexes Cp’Sc(CH$_{2}$C$_{6}$H$_{4}$NMe$_{2}$-o)$_{2}$ (3: Cp’ = C$_{5}$H$_{5}$; 4: Cp’ = C$_{5}$Me$_{4}$SiMe$_{3}$) and the phosphine oxide side-arm containing complex (C$_{5}$Me$_{4}$SiMe$_{2}$CH$_{2}$(O)PPh$_{2}$)Sc(CH$_{2}$SiMe$_{3}$)$_{2}$ (5) showed excellent activity and selectivity for the cyclocopolymerization reaction, without giving cross-linked products. The $^{1}$H and $^{13}$C NMR analyses revealed that the resulting copolymers consist of E-E sequences and six-membered ring methylene-1,3-cyclohexane (MCH) and five-membered ring ethylene-1,2-cyclopentane (ECP) units. The HPD content in the copolymer products could be easily controlled by changing the feeding amount of HPD under 1 atm of ethylene.
Starting Page	1150
Ending Page	1156
Page Count	7
File Format	PDF
ISSN	16747291
Journal	Science in China Series B: Chemistry
Volume Number	57
Issue Number	8
e-ISSN	18691870
Language	English
Publisher	Science China Press
Publisher Date	2014-06-25
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	scandium 1,6-heptadiene ethylene cyclopolymerization copolymerization Chemistry/Food Science
Content Type	Text
Resource Type	Article
Subject	Chemistry

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Copolymerization of isoprene and nonconjugated ,ω-dienes by half-sandwich scandium catalysts with and without a coordinative side arm.

Copolymerization of propylene with styrene and ethylene by a THF-containing half-sandwich scandium catalyst: efficient synthesis of polyolefins with a controllable styrene content

Ethylene (co-)polymerization by long-lifetime half-sandwich zirconium catalyst bearing a [SSO]-carborane ligand

Ruthenium phosphine complexes as catalysts of alternating copolymerization of ethylene and carbon monoxide

New half-sandwich zirconium(IV) complexes containing salicylaldimine ligands: Synthesis, characterizations and catalytic properties

Effect of protic agents on the catalytic activity of supported palladium catalysts in the copolymerization of ethylene with carbon monoxide

Stereoselective copolymerization of amino-functionalized styrene with butadiene using a half-sandwich scandium complex

Cyclopolymerization and Copolymerization of Functionalized 1,6-Heptadienes Catalyzed by Pd Complexes: Mechanism and Application to Physical-Gel Formation

High norbornene incorporation in ethylene-norbornene copolymerization with a bis(α-alkyloxoimine) titanium-MAO catalyst

Cyclocopolymerization of 1,6-heptadiene with ethylene by half-sandwich scandium catalysts

Similar Documents

Copolymerization of isoprene and nonconjugated ,ω-dienes by half-sandwich scandium catalysts with and without a coordinative side arm.

Copolymerization of propylene with styrene and ethylene by a THF-containing half-sandwich scandium catalyst: efficient synthesis of polyolefins with a controllable styrene content

Ethylene (co-)polymerization by long-lifetime half-sandwich zirconium catalyst bearing a [SSO]-carborane ligand

Ruthenium phosphine complexes as catalysts of alternating copolymerization of ethylene and carbon monoxide

New half-sandwich zirconium(IV) complexes containing salicylaldimine ligands: Synthesis, characterizations and catalytic properties

Effect of protic agents on the catalytic activity of supported palladium catalysts in the copolymerization of ethylene with carbon monoxide

Stereoselective copolymerization of amino-functionalized styrene with butadiene using a half-sandwich scandium complex

Cyclopolymerization and Copolymerization of Functionalized 1,6-Heptadienes Catalyzed by Pd Complexes: Mechanism and Application to Physical-Gel Formation

High norbornene incorporation in ethylene-norbornene copolymerization with a bis(α-alkyloxoimine) titanium-MAO catalyst

Cyclocopolymerization of 1,6-heptadiene with ethylene by half-sandwich scandium catalysts