2171-74-6Relevant articles and documents
Aqueous microwave-assisted synthesis of non-interpenetrated metal-organic framework for room temperature cycloaddition of CO2 and epoxides
Babu, Robin,Kim, Seol-Hee,Kathalikkattil, Amal Cherian,Kuruppathparambil, Roshith Roshan,Kim, Dong Woo,Cho, Sung June,Park, Dae-Won
, p. 126 - 136 (2017)
A multilinker non-interpenetrated metal-organic framework, UMCM-15, was synthesized by using microwave power as an alternative energy-efficient tool for the first time. The synergistic catalytic activity, when combined with a co-catalyst containing a strongly nucleophilic anion, was studied in the solventless room temperature cycloaddition between epoxides and CO2. Unlike previous reports on UMCM-15 synthesized in the high-boiling solvent dimethylformamide, low boiling water/ethanol mixture was used as the solvent herein. This approach holds potential as a sustainable green methodology. Crystal formation during the microwave-assisted (MW) synthesis was monitored at certain time intervals. The favorable role of non-interpenetrated pillared structures in promoting room temperature CO2-epoxide cycloaddition reactions was explained by comparing the catalytic efficiency of the three-linker extended pillar-layered non-interpenetrated UMCM-15 with its analogous pillared structures built from two- and three-fold interpenetrated ([Zn2(BDC)2(4,4′-bipy)] and [Zn2(NDC)2(4,4′-bipy)]) catalytic systems with a single dicarboxylate linker. The efficacy of the microwave-assisted UMCM-15(M) catalyst in cycloaddition reactions was proved by comparing the catalytic activity of UMCM-15(M) with that of the congener made by solvothermal synthesis, UMCM-15(S). In addition, a plausible mechanism for the synergistic operation of the Lewis acid sites and nucleophiles was suggested.
Two Cu(II)-organic frameworks: Effective CO2 fixation and protective activity on the motor function after stroke by increasing neural stem cells differentiation
Ye, Qing,Zhang, Li,Shao, Zhou-Li,Zhang, Wei,Li, Chao,Ye, Xiang-Ming
, (2020)
In the present research, two novel metal–organic frameworks (MOFs) containing Cu(II) ions as nodes {[Cu(L)]·2DMF·2H2O}n (1) and {[(CH3)2NH2][Cu2(L)(H2O)PO4]·2DMF}
Fluorodesulfurization of Thionobenzodioxoles with Silver(I) Fluoride
Newton, Josiah J.,Brooke, Alan J.,Duhamel, Bastian,Pulfer, Jason M.,Britton, Robert,Friesen, Chadron M.
, p. 13298 - 13305 (2020/11/26)
Difluorobenzodioxole is an important functional group found in both pharmaceuticals and agrochemicals. The late-stage introduction of this functional group is challenged by typical fluorination conditions of HF and strong oxidants. Here, we demonstrate that a range of difluorobenzodioxoles can be prepared from catechols in two steps through conversion into thionobenzodioxoles, followed by desulfurative fluorination with silver(I) fluoride. These mild reaction conditions are compatible with a variety of functional groups and enable access to a range of functionalized difluorobenzodioxoles.
CARBONATE DERIVATIVE PRODUCTION METHOD
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Paragraph 0114-0115, (2020/04/09)
The objective of the present invention is to provide a method for producing a carbonate derivative in a safe and efficient manner. The method for producing a carbonate derivative according to the present invention is characterized in comprising irradiating light on a composition containing a C1-4 halogenated hydrocarbon having one or more kinds of halogen atoms selected from the group consisting of a chlorine atom, a bromine atom and an iodine atom, a nucleophilic functional group-containing compound and the specific base in the presence of oxygen.
