Electronic Tuning of Zinc Porphyrin Catalysts for the Conversion of Epoxides and Carbon Dioxide into Cyclic Carbonates
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DOI: 10.1002/cctc.201601690
Abstract: Bifunctional ZnII porphyrin catalysts bearing tributylammonium bromide groups at the meta positions of the meso‐phenyl groups showed high catalytic activity for the synthesis of cyclic carbonates from epoxides and CO2. Herein, several substituents with different… read more here.
Keywords: zinc; catalytic activity; porphyrin catalysts; cyclic carbonates ... See more keywords
Efficient Synthesis of Cyclic Carbonates from Unsaturated Acids and Carbon Dioxide and their Application in the Synthesis of Biobased Polyurethanes.
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DOI: 10.1002/cplu.202100079
Abstract: Bio-derived furan- and diacid-derived cyclic carbonates have been synthesized in high yields from terminal epoxides and CO2 . Furthermore, four highly substituted terpene-derived cyclic carbonates were isolated in good yields with excellent diastereoselectivity in some… read more here.
Keywords: synthesis cyclic; efficient synthesis; unsaturated acids; carbonates unsaturated ... See more keywords
Zn2(C9H3O6)(C4H5N2)(C4H6N2)3 MOF as a highly efficient catalyst for chemical fixation of CO2 into cyclic carbonates and kinetic studies
Sign Up to like & getrecommendations! Published in 2018 at "Chemical Engineering Research and Design"
DOI: 10.1016/j.cherd.2018.10.034
Abstract: Abstract Zn2(C9H3O6)(C4H5N2)(C4H6N2)3 (Zn-BTC-2MeIm) was hydrothermally synthesized and employed as a highly efficient catalyst for CO2 coupling with epichlorohydrin (ECH). Various techniques such as XRD, FT-IR, XPS, TG-DTG, NH3/CO2-TPD were employed for characterizing the compound. Interestingly,… read more here.
Keywords: c4h5n2 c4h6n2; c9h3o6 c4h5n2; efficient catalyst; cyclic carbonates ... See more keywords
Valorization of agricultural waste and CO2 into bioderived cyclic carbonates
Sign Up to like & getrecommendations! Published in 2021 at "Journal of environmental chemical engineering"
DOI: 10.1016/j.jece.2021.105464
Abstract: Abstract Highly efficient and metal-free bifunctional organocatalysts have been used for the synthesis of waste vegetable oils-derived cyclic carbonates from bio-derived epoxides and CO2. In this contribution, epoxides 2a-k and carbon dioxide have been used… read more here.
Keywords: valorization agricultural; co2; cyclic carbonates; waste co2 ... See more keywords
Allyl functionalized UiO-66 metal-organic framework as a catalyst for the synthesis of cyclic carbonates by CO2 cycloaddition
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Industrial and Engineering Chemistry"
DOI: 10.1016/j.jiec.2020.05.016
Abstract: Abstract The conversion of epoxides to cyclic carbonates is one of the most common CO2 fixation reactions. Metal-organic frameworks (MOFs), due to their porosity, easily tunable properties and Lewis acidic sites, are extensively used in… read more here.
Keywords: bat; metal organic; uio bat; catalyst ... See more keywords
Visible light assisted chemical fixation of atmospheric CO2 into cyclic Carbonates using covalent organic framework as a potential photocatalyst
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DOI: 10.1016/j.mcat.2020.111253
Abstract: Abstract We have demonstrated the photo-catalytic fixation of CO2 over epoxides for the formation of corresponding cyclic carbonates using a mesoporous Covalent Organic Framework (COF) which acts as a potential photocatalyst with TBAB (Tetrabutyl ammonium… read more here.
Keywords: carbonates using; visible light; photocatalyst; covalent organic ... See more keywords
Imidazolium-based polymeric ionic liquids for heterogeneous catalytic conversion of CO2 into cyclic carbonates
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DOI: 10.1016/j.micromeso.2019.109751
Abstract: Abstract Polyimidazolium salts are a class of important catalysts for CO2 cycloaddition with epoxides. However, initiator like azoisobutyronitrile or metal catalyst is often required to promote their synthetic process. Therefore, developing a clean route to… read more here.
Keywords: polymeric ionic; based polymeric; co2; cyclic carbonates ... See more keywords
Cyclic amidine hydroiodide for the synthesis of cyclic carbonates and cyclic dithiocarbonates from carbon dioxide or carbon disulfide under mild conditions
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DOI: 10.1016/j.tet.2019.130781
Abstract: Abstract Hydroiodides of amidines can catalyze the reaction of carbon dioxide and epoxides under mild conditions such as ordinary pressure and ambient temperature, and the corresponding five-membered cyclic carbonates were obtained in high yields. The… read more here.
Keywords: mild conditions; carbon; carbon disulfide; carbon dioxide ... See more keywords
Activation and Utilization of CO2 Using Ionic Liquid or Amine-Functionalized Basic Nanocrystalline Zeolites for the Synthesis of Cyclic Carbonates and Quinazoline-2,4(1H,3H)-dione
Sign Up to like & getrecommendations! Published in 2017 at "Industrial & Engineering Chemistry Research"
DOI: 10.1021/acs.iecr.7b01406
Abstract: CO2 was activated and used as a reactant for the preparation of cyclic carbonates and quinazoline-2,4(1H,3H)-dione using functionalized basic nanocrystalline zeolite Nano-ZSM-5 as catalysts. Nano-ZSM-5 was treated with aqueous NH3 solution to prepare basic Nano-ZSM-5.… read more here.
Keywords: carbonates quinazoline; quinazoline dione; co2; nano zsm ... See more keywords
Copper-Mediated SN2' Allyl-Alkyl and Allyl-Boryl Couplings of Vinyl Cyclic Carbonates.
Sign Up to like & getrecommendations! Published in 2017 at "Organic letters"
DOI: 10.1021/acs.orglett.7b02947
Abstract: A method for the copper-catalyzed borylmethylation and borylation of vinyl cyclic carbonates through an SN2' mechanism is reported. These singular reactions involve selective SN2' allylic substitutions with concomitant ring opening of the cyclic carbonate and… read more here.
Keywords: copper mediated; sn2 allyl; mediated sn2; allyl ... See more keywords
Tetrabutylphosphonium-Based Ionic Liquid Catalyzed CO2 Transformation at Ambient Conditions: A Case of Synthesis of α-Alkylidene Cyclic Carbonates
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DOI: 10.1021/acscatal.7b01422
Abstract: A series of tetrabutylphosphonium ([Bu4P]+)-based ionic liquids (ILs) with multiple-site for CO2 capture and activation in their anions are reported, which could efficiently catalyze the cyclization reaction of propargylic alcohols with CO2 at ambient conditions.… read more here.
Keywords: ambient conditions; alkylidene cyclic; tetrabutylphosphonium; based ionic ... See more keywords