Results 11 to 20 of about 156,373 (305)
Ring-Opening Fluorination of Bicyclic Azaarenes
Chemical Science, 2021 A ring-opening fluorination of bicyclic azaarenes was developed. Although this overall transformation can be classified as an electrophilic fluorination of aromatics, it is a novel type of fluorination that results in construction of tert -C–F bonds.
Masaaki Komatsuda +6 more
openaire +3 more sources
Mechanically Enhanced Proline Ring-Opening in Proteins
, 2022 Proteins such as collagen and elastin are subjected to highly repetitive stresses in the cardiovascular system. These proteins can have half-lives of many decades and, therefore, experience many tens or hundreds of millions of stress-strain cycles.
Jan, Hoh
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Special Issue “Ring-Opening Polymerization”
Molecules, 2016 n ...
Takeshi Endo, Atsushi Sudo
doaj +1 more source
Synthesis and Membrane Properties of Troger′s Base Polymers
Nantong Daxue xuebao. Ziran kexue ban, 2020 Troger′s base polymers have strong chemical stability, thermal stability and rigidity, V-shaped ladder structure and porous structure. The nitrogen heterocyclic ring is hydrophilic.
HUANG Ronglu; ZHANG Chen; WANG Yuyong; TANG Hai; ZHANG Ze
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Si-Imidazole-HSO4 Functionalized Magnetic Fe3O4 Nanoparticles as an Efficient and Reusable Catalyst for the Regioselective Ring Opening of Epoxides in Water [PDF]
Nanochemistry Research, 2016 An efficient and simple method for the preparation of Si-Imidazole-HSO4 functionalized magnetic Fe3O4 nanoparticles (Si-Im-HSO4 MNPs) and used as an efficient and reusable magnetic catalysts for the regioselective ring opening of epoxides under green ...
Eshagh Rezaee Nezhad +1 more
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Organocatalytic activation of cyclopropanes in asymmetric synthesis
Tetrahedron Chem, 2023 Cyclopropanes are strained carbocycles that can undergo ring opening reactions in which one of the C–C bond present in the cycle is broken following a radical or ionic mechanism.
Efraím Reyes +4 more
doaj +1 more source
Flavin-enabled reductive and oxidative epoxide ring opening reactions
Nature Communications, 2022 Epoxide ring opening reactions are important in both biological processes and synthetic applications. Here, the authors show that flavin cofactors can catalyze reductive and oxidative epoxide ring opening reactions and propose the underlying mechanisms.
Bidhan Chandra De +13 more
doaj +1 more source
Conditions to Control Furan Ring Opening during Furfuryl Alcohol Polymerization
Molecules, 2022 The chemistry of biomass-derived furans is particularly sensitive to ring openings. These side reactions occur during furfuryl alcohol polymerization.
Lucie Quinquet +2 more
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Radical Ring-Opening of Oxetanes Enabled by Co-Catalysis
, 2021 Oxetanes are valuable building blocks due to their well-explored propensity to undergo ring-opening reactions with diverse nucleophiles. However, their application as precursors of radical species remains unexplored. Herein, we present a cobalt catalysis-
Wojciech , Chaładaj +3 more
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Curing of bisphenol A-aniline based benzoxazine using phenolic, amino and mercapto accelerators
eXPRESS Polymer Letters, 2015 The curing of bisphenol A-aniline based benzoxazine was studied applying different accelerators (4,4'-thiodiphenol, o-dianisidine, 2-mercaptobenzimidazole and 4-mercaptophenol) to initiate the catalytic ring-opening of benzoxazine.
A. Rucigaj +3 more
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