Norbornene derivatives from a metal-free, strain-promoted cycloaddition reaction: New building blocks for ring-opening metathesis polymerization reactions

2015 ◽  
Vol 53 (20) ◽  
pp. 2357-2362 ◽  
Author(s):  
Christopher E. Hobbs ◽  
Binhong Lin ◽  
Thomas Malinski
Keyword(s):  
Ring Opening ◽  
Cycloaddition Reaction ◽  
Building Blocks ◽  
Ring Opening Metathesis Polymerization ◽  
Metathesis Polymerization ◽  
Metal Free ◽  
Norbornene Derivatives ◽  
Free Strain

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

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 ◽  
Metathesis Polymerization ◽  
Norbornene Derivatives

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...

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

2021 ◽  
Author(s):  
Janis V. Musso ◽  
Mathis Benedikter ◽  
Paul Gebel ◽  
Vincent Gramm ◽  
Dongren Wang ◽  
...  
Keyword(s):  
Ring Opening ◽  
Ring Opening Metathesis Polymerization ◽  
Carbene Complexes ◽  
Metathesis Polymerization ◽  
Norbornene Derivatives

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.

scholarly journals Metal-Free Ring-Opening Metathesis Polymerization

2015 ◽  
Vol 137 (4) ◽  
pp. 1400-1403 ◽  
Author(s):  
Kelli A. Ogawa ◽  
Adam E. Goetz ◽  
Andrew J. Boydston
Keyword(s):  
Ring Opening ◽  
Ring Opening Metathesis Polymerization ◽  
Free Ring ◽  
Metathesis Polymerization ◽  
Metal Free

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

2019 ◽  
Vol 15 ◽  
pp. 44-51 ◽  
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 ◽  
Ring Opening Metathesis Polymerization ◽  
Metathesis Polymerization ◽  
Selective Ring Opening ◽  
Norbornene Derivatives

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.

Comparison of Pyrylium and Thiopyrylium Photooxidants in Metal-Free Ring-Opening Metathesis Polymerization

Synlett ◽  
2016 ◽  
Vol 27 (05) ◽  
pp. 759-762 ◽  
Author(s):  
Andrew Boydston ◽  
Laura Pascual ◽  
Damian Dunford ◽  
Adam Goetz ◽  
Kelli Ogawa
Keyword(s):  
Ring Opening ◽  
Ring Opening Metathesis Polymerization ◽  
Free Ring ◽  
Metathesis Polymerization ◽  
Metal Free
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