Light-induced olefin metathesis
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TLDR
This survey of the relevant literature summarises past and present developments in the use of light to expedite olefin ring-closing, ring-opening polymerisation and cross-metathesis reactions.Abstract:
Light activation is a most desirable property for catalysis control. Among the many catalytic processes that may be activated by light, olefin metathesis stands out as both academically motivating and practically useful. Starting from early tungsten heterogeneous photoinitiated metathesis, up to modern ruthenium methods based on complex photoisomerisation or indirect photoactivation, this survey of the relevant literature summarises past and present developments in the use of light to expedite olefin ring-closing, ring-opening polymerisation and cross-metathesis reactions.read more
Citations
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Journal ArticleDOI
Light guided chemoselective olefin metathesis reactions
Ofer Reany,N. Gabriel Lemcoff +1 more
TL;DR: In this article, photo-induced olefin metathesis reactions based on photoactive sulfur-chelated ruthenium benzylidene catalysts were studied in chemoselective chromatic orthogonal pathways, and the lessons learned during the development of these reactions have given birth to selective photodeprotection sequences and novel pathways for stereolithographic applications.
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An additional potential donor-bearing alkylidene-containing latent NHC–ruthenium-based catalyst for olefin metathesis polymerization
TL;DR: In this paper, a series of novel NHC-Ru-based complex with substituted pyridine ligands was synthesized and their latent catalytic behavior in the ring-opening metathesis polymerization (ROMP) was studied.
Patent
Crystalline germanosilicate materials of new CIT-13 topology and methods of preparing the same
TL;DR: In this article, the authors describe methods of preparing germanosilicate compositions using substituted benzyl-imidazolium organic structure-directing agents (OSDAs).
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cis/trans Coordination in Olefin Metathesis by Static and Molecular Dynamic DFT Calculations
TL;DR: In this article, a simple olefin, like ethylene, is shown to be prone to the trans binding of the N-heterocyclic carbene ligand, and this insight helps to construct small alkene substrates with increased reactivity.
Journal ArticleDOI
Depolymerization of Cross-Linked Polybutadiene Networks in Situ Using Latent Alkene Metathesis
Jeremy A. Herman,Micaela E. Seazzu,Lindsey Gloe Hughes,David R. Wheeler,Cody M. Washburn,Brad H. Jones +5 more
TL;DR: In this article, a cross-linked polybutadiene (PB) networks can be depolymerized in situ based on thermally activated alkene metathesis, using a commercially available latent Ru catalyst.
References
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Journal ArticleDOI
The Development of L2X2RuCHR Olefin Metathesis Catalysts: An Organometallic Success Story
Tina M. Trnka,Robert H. Grubbs +1 more
TL;DR: The discussion includes an analysis of trends in catalyst activity, a description of catalysts coordinated with N-heterocyclic carbene ligands, and an overview of ongoing work to improve the activity, stability, and selectivity of this family of L2X2Ru=CHR complexes.
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Synthesis and activity of a new generation of ruthenium-based olefin metathesis catalysts coordinated with 1,3-dimesityl-4,5-dihydroimidazol-2-ylidene ligands.
TL;DR: These air- and water-tolerant complexes were shown to exhibit an increased ring-closing metathesis activity at elevated temperature when compared to that of the parent complex 2 and the previously developed complex 3.
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Olefin Metathesis and Beyond
TL;DR: In this paper, the authors provide an overview of the development of catalysts for olefin metathesis which combine high activity, durability, and excellent tolerance towards polar functional groups.
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Self-healing materials with microvascular networks
TL;DR: A self-healing system capable of autonomously repairing repeated damage events via a three-dimensional microvascular network embedded in the substrate is reported, opening new avenues for continuous delivery of healing agents for self-repair as well as other active species for additional functionality.
Journal ArticleDOI
Living ring-opening metathesis polymerization
TL;DR: A review of living ring-opening metathesis polymerization (ROMP) reactions can be found in this article, along with a discussion of state-of-the-art catalysts for use in living ROMP reactions as well as opportunities for the future.