Cationic tungsten imido alkylidene N-heterocyclic carbene complexes for stereospecific ring-opening metathesis polymerization of norbornene derivatives

Carbene Complexes ◽

Cationic W alkylidene N-heterocyclic carbene complexes allow for the stereospecific ring-opening metathesis polymerization of norbornenes with high trans-iso- and high cis-syndiospecificity, respectively.

Highly photoluminescent poly(norbornene)s carrying platinum-acetylide complex moieties in the side chain: evaluation of oxygen sensing and TTA–UC

Polymer Chemistry ◽

10.1039/d1py00665g ◽

2021 ◽

Author(s):

Taichi Sotani ◽

Toshiko Mizokuro ◽

Tatsuo Yajima ◽

Hiromitsu Sogawa ◽

Fumio Sanda

Keyword(s):

Ring Opening ◽

Oxygen Sensing ◽

Polymeric Materials ◽

Side Chain ◽

Thermally Stable ◽

Ring-opening metathesis polymerization (ROMP) of norbornene derivatives is useful for preparing thermally stable and transparent polymeric materials with good moldability. This study deals with ROMP of norbornene monomer 1 bearing...

Synthesis of trans-Isotactic Poly(norbornene)s through Living Ring-Opening Metathesis Polymerization Initiated by Group VI Imido Alkylidene N-Heterocyclic Carbene Complexes

Macromolecules ◽

10.1021/acs.macromol.9b00422 ◽

2019 ◽

Vol 52 (11) ◽

pp. 4059-4066 ◽

Cited By ~ 15

Author(s):

Mathis J. Benedikter ◽

Roman Schowner ◽

Iris Elser ◽

Philipp Werner ◽

Katharina Herz ◽

...

Keyword(s):

Ring Opening ◽

Group Vi ◽

Carbene Complexes ◽

Regio- and stereoselective ring-opening metathesis polymerization of 3-ferrocenyl substituted cyclooctenes and copolymerization with norbornene derivatives

European Polymer Journal ◽

10.1016/j.eurpolymj.2020.109472 ◽

2020 ◽

Vol 124 ◽

pp. 109472

Author(s):

Feilong Liu ◽

Nannan Xu ◽

Li Ling ◽

Jianfeng Hu ◽

Hao Zhang

Keyword(s):

Ring Opening ◽

Erratum to: “Ring-opening metathesis polymerization of 7-methylbicyclo[2.2.1]hepta-2,5-diene initiated by well-defined molybdenum and ruthenium carbene complexes”

Journal of Organometallic Chemistry ◽

10.1016/s0022-328x(00)00769-5 ◽

2001 ◽

Vol 620 (1-2) ◽

pp. 314

Author(s):

Kenneth J. Ivin ◽

Alan M. Kenwright ◽

Ezat Khosravi ◽

James G. Hamilton

Keyword(s):

Ring Opening ◽

Carbene Complexes ◽

Living Ring-Opening Metathesis Polymerization in Aqueous Media Catalyzed by Well-Defined Ruthenium Carbene Complexes

Journal of the American Chemical Society ◽

10.1021/ja950327d ◽

1996 ◽

Vol 118 (4) ◽

pp. 784-790 ◽

Cited By ~ 191

Author(s):

David M. Lynn ◽

Shokyoku Kanaoka ◽

Robert H. Grubbs

Keyword(s):

Ring Opening ◽

Aqueous Media ◽

Carbene Complexes ◽

Synthesis, Structure, and Reactivity of Cationic Ruthenium(II) Carbene Complexes with Bulky Chelating Bisphosphines: Design of Highly Active Ring Opening Metathesis Polymerization (ROMP) Catalysts

Organometallics ◽

10.1021/om030655j ◽

2004 ◽

Vol 23 (4) ◽

pp. 800-816 ◽

Cited By ~ 43

Author(s):

Martin August Otfried Volland ◽

Sven Michael Hansen ◽

Frank Rominger ◽

Peter Hofmann

Keyword(s):

Ring Opening ◽

Carbene Complexes ◽

Highly Active ◽

Active Ring

Ring-opening metathesis polymerization of 7-methylbicyclo[2.2.1]hepta-2,5-diene initiated by well-defined molybdenum and ruthenium carbene complexes

Journal of Organometallic Chemistry ◽

10.1016/s0022-328x(00)00126-1 ◽

2000 ◽

Vol 606 (1) ◽

pp. 37-48 ◽

Cited By ~ 17

Author(s):

Kenneth J. Ivin ◽

Alan M. Kenwright ◽

Ezat Khosravi ◽

James G. Hamilton

Keyword(s):

Ring Opening ◽

Carbene Complexes ◽

Synthesis of Block Copolymers of Silicon-Containing Norbornene Derivatives via Living Ring-Opening Metathesis Polymerization Catalyzed by a Ruthenium Carbene Complex

Macromolecules ◽

10.1021/ma00117a050 ◽

1995 ◽

Vol 28 (13) ◽

pp. 4707-4713 ◽

Cited By ~ 78

Author(s):

Shokyoku Kanaoka ◽

Robert H. Grubbs

Keyword(s):

Block Copolymers ◽

Ring Opening ◽

Carbene Complex ◽

Selective ring-opening metathesis polymerization (ROMP) of cyclobutenes. Unsymmetrical ladderphane containing polycyclobutene and polynorbornene strands

Beilstein Journal of Organic Chemistry ◽

10.3762/bjoc.15.4 ◽

2019 ◽

Vol 15 ◽

pp. 44-51 ◽

Cited By ~ 3

Author(s):

Yuan-Zhen Ke ◽

Shou-Ling Huang ◽

Guoqiao Lai ◽

Tien-Yau Luh

Keyword(s):

Methyl Ester ◽

Ambient Temperature ◽

Ring Opening ◽

First Generation ◽

Double Bonds ◽

Selective Ring Opening ◽

At 0 °C in THF in the presence of Grubbs first generation catalyst, cyclobutene derivatives undergo ROMP readily, whereas norbornene derivatives remain intact. When the substrate contains both cyclobutene and norbornene moieties, the conditions using THF as the solvent at 0 °C offer a useful protocol for the selective ROMP of cyclobutene to give norbornene-appended polycyclobutene. Unsymmetrical ladderphane having polycyclobutene and polynorbornene as two strands is obtained by further ROMP of the norbornene appended polycyclobutene in the presence of Grubbs first generation catalyst in DCM at ambient temperature. Methanolysis of this unsymmetrical ladderphane gives polycyclobutene methyl ester and insoluble polynorbornene-amide-alcohol. The latter is converted into the corresponding soluble acetate. Both polymers are well characterized by spectroscopic means. No norbornene moiety is found to be incorporated into polycyclobutene strand at all. The double bonds in the polycyclobutene strand are mainly in cis configuration (ca 70%), whereas the E/Z ratio for polynorbornene strand is 8:1.