Results 11 to 20 of about 4,393 (185)
A Review on Olefin Metathesis Reactions as a Green Method for the Synthesis of Organic Compounds
Journal of Chemistry, 2021 Olefin metathesis is a metal-mediated C-C bond exchange by which the two fragments within the olefin precursor are redistributed as a result of breaking the double bond to obtain a new product. Currently, most of the synthetic organic compounds, polymers,
Atitegeb Abera Tsedalu
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Research progress in preparation technology of hydroxyl-terminated butadiene liquid rubber
Hecheng xiangjiao gongye, 2023 The performance characteristics and application fields of hydroxy-terminated polybuta-diene (HTPB) liquid rubber were summarized, the preparation methods and characteristics of HTPB were reviewed with 32 references, and various me-thods were summarized ...
LIU Sheng-nan1,2, AI Chun-jin1,2, ZHANG Ding-jun1,2, LI Dong1,2
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"Progress in preparation of end-group functionalized liquid rubber
Hecheng xiangjiao gongye, 2022 The preparation of end-group functionalized liquid rubber by olefin metathesis method had the advantages of controllable molecular weight, easy introduction of multiple functional groups and milder reaction conditions.
ZHANG Yi-kai, LI Wei-tian, ZHANG Hua-qiang, RAN Fen, GONG Guang-bi
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Molecules, 2021 A modular and flexible strategy towards the synthesis of N-heterocyclic carbene (NHC) ligands bearing Brønsted base tags has been proposed and then adopted in the preparation of two tagged NHC ligands bearing rests of isonicotinic and 4-(dimethylamino ...
Stefan Czarnocki +4 more
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Heterogeneous catalysts for olefin metathesis
Catalysis Communications, 2023 Over the past 30 years, many strategies have been developed to immobilize well-defined metathesis catalysts on solid supports. The use of heterogeneous catalysis resulted in increased purity of the product and the possibility of recycling the catalyst ...
Natalia Barteczko +2 more
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Latent olefin metathesis catalysts [PDF]
Chemical Society Reviews, 2009 Olefin metathesis is a versatile synthetic tool for the redistribution of alkylidene fragments at carbon-carbon double bonds. This field, and more specifically the development of task-specific, latent catalysts, attracts emerging industrial and academic interest.
Monsaert, Stijn +4 more
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Beilstein Journal of Organic Chemistry, 2021 This work presents an examination of the selective functionalization of norbornadiene through nitrile oxide 1,3-dipolar cycloaddition/ring-opening metathesis (ROM)/cross-metathesis (CM) protocols. Functionalization of commercially available norbornadiene
Zsanett Benke +2 more
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The allylic chalcogen effect in olefin metathesis
Beilstein Journal of Organic Chemistry, 2010 Olefin metathesis has emerged as a powerful tool in organic synthesis. The activating effect of an allylic hydroxy group in metathesis has been known for more than 10 years, and many organic chemists have taken advantage of this positive influence for ...
Yuya A. Lin, Benjamin G. Davis
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Biotechnology for Biofuels, 2018 Background The production of fuels and chemicals from renewable resources is increasingly important due to the environmental concern and depletion of fossil fuel. Despite the fast technical development in the production of aviation fuels, there are still
Meng Wang +3 more
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NHC Backbone Configuration in Ruthenium-Catalyzed Olefin Metathesis
Molecules, 2016 The catalytic properties of olefin metathesis ruthenium complexes bearing N-heterocyclic carbene ligands with stereogenic centers on the backbone are described. Differences in catalytic behavior depending on the backbone configurations of symmetrical and
Veronica Paradiso +2 more
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