Results 1 to 10 of about 1,369,818 (304)
Ring-Opening Fluorination of Isoxazoles [PDF]
Organic Letters, 2022 A ring-opening fluorination of isoxazoles has been developed. By treating isoxazoles with an electrophilic fluorinating agent (Selectfluor®), fluorination followed by deprotonation leads to tertiary fluorinated carbonyl compounds. The present method features mild reaction conditions, good functional group tolerance, and simple experimental procedure ...
Masaaki Komatsuda +4 more
core +5 more sources
Unexplored Nucleophilic Ring Opening of Aziridines
Molecules, 2010 The reactivity of dianions of carboxylic acids towards aziridines has been studied. Although, a similar reactivity to that of enolates from ketones, esters or amides has been observed, the method directly yields g-aminoacids in one step. The method is complementary of previous results of enenediolate reactivity with other electrophiles.
Ana María Costero +3 more
openaire +4 more sources
Alkylative Aziridine Ring-Opening Reactions
Molecules, 2021 In this study, the highly strained three-membered aziridine ring was successfully activated as the aziridinium ion by alkylation of the ring nitrogen with a methyl, ethyl or allyl group, which was followed by ring opening with external nucleophiles such ...
Jieun Choi, Taehwan Yu, Hyun-Joon Ha
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Oxidative Arene Ring-Opening of Benzylic Alcohols. [PDF]
JACS AuZhu MH +6 more
europepmc +2 more sources
Chemistry Teacher International, 2021 Ring-opening polymerization is defined by IUPAC (Penczek, S., Moad, G. (2008). Glossary of the terms related to kinetics, thermodynamics, and mechanisms of polymerization.
Penczek Stanislaw +2 more
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Recent advances using cyclopropanols and cyclobutanols in ring-opening asymmetric synthesis
Green Synthesis and Catalysis, 2022 Due to high ring strain energies, cyclopropanols and cyclobutanols have a strong tendency of breaking the endocyclic C–C bonds to participate in versatile organic transformations.
Hong Yan, Gregory S. Smith, Fen-Er Chen
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Alkylating ability of carbohydrate oxetanes: Practical synthesis of bolaform skeleton derivative [PDF]
Journal of the Serbian Chemical Society, 2015 Alkylating ability of oxetane ring in carbohydrate structure was investigated and flexible method for bolaform amphiplile skeleton construction with xylose as polar heads is proposed.
Hadžić Pavle A. +2 more
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Special Issue “Ring-Opening Polymerization”
Molecules, 2016 n ...
Takeshi Endo, Atsushi Sudo
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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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