138884-03-4Relevant articles and documents
Silver(I)-Catalyzed Three-Component Reaction of Propargylic Alcohols, Carbon Dioxide and Monohydric Alcohols: Thermodynamically Feasible Access to β-Oxopropyl Carbonates
Zhou, Zhi-Hua,Song, Qing-Wen,Xie, Jia-Ning,Ma, Ran,He, Liang-Nian
, p. 2065 - 2071 (2016)
A silver(I)-catalyzed three-component reaction of propargylic alcohols, CO2, and monohydric alcohols was successfully developed for the synthesis of β-oxopropyl carbonates. As such, a series of β-oxopropyl carbonates were exclusively produced in excellent yields (up to 98 %), even under atmospheric pressure of CO2. The silver catalyst works efficiently for both the carboxylative cyclization of propargylic alcohols with CO2 and subsequent transesterification of α-alkylidene cyclic carbonates with monohydric alcohols; thus this tandem process performs smoothly under mild conditions. This work provides a versatile and thermodynamically favorable approach to dissymmetric dialkyl carbonates.
Synthesis of Asymmetrical Organic Carbonates using CO2 as a Feedstock in AgCl/Ionic Liquid System at Ambient Conditions
Hu, Jiayin,Ma, Jun,Lu, Lu,Qian, Qingli,Zhang, Zhaofu,Xie, Chao,Han, Buxing
, p. 1292 - 1297 (2017)
Synthesis of asymmetrical organic carbonates from the renewable and inexpensive CO2 is of great importance but also challenging, especially at ambient conditions. Herein, we found that some metal salt/ionic liquid catalyst systems were highly active for the synthesis of asymmetrical organic carbonates from CO2, propargylic alcohols, and primary alcohols. Especially, the AgCl/1-butyl-3-methylimidazolium acetate ([Bmim][OAc]) system was very efficient for the reactions of a wide range of substrates at room temperature and atmospheric pressure, and the yields of the asymmetrical organic carbonates could approach 100 %. The catalyst system could be reused at least five times without changing its catalytic performance, and could be easily recovered and reused. A detailed study indicated that AgCl and [Bmim][OAc] catalyzed the reactions cooperatively, resulting in unique catalytic performance.
Clever use of natural clay materials in the synthesis of non-symmetric carbonates by utilizing CO2as a feedstock: Ag/attapulgite nano-catalyst
Guo, Ruixiang,Liu, Weisheng,Wang, Gang
, p. 10232 - 10239 (2020)
Using natural minerals seems to be one of the most novel and environmentally friendly strategies to design catalysts for CO2 conversion. Herein, we report a facile and efficient nano-catalyst for the synthesis of non-symmetric carbonate by utilizing a magnesium-aluminium silicate nano-mineral - attapulgite (ATP). Thanks to the unique structure of ATP and its ability to absorb carbon dioxide, the Ag/attapulgite nano-catalyst has excellent catalytic activity and stability in the carbon dioxide fixation reaction. The design of this Ag/attapulgite nano-catalyst provides a novel idea for realizing CO2 conversion and clay resource utilization. This journal is
Synergistic Ag(I)/nBu4NBr-catalyzed fixation of CO2 to β-oxopropyl carbonates via propargylic alcohols and monohydric alcohols
Li, Jingyuan,Song, Qingwen,Zhang, Hengxuan,Liu, Ping,Zhang, Kan,Wang, Junwen,Zhang, Dengsong
, p. 2343 - 2349 (2019)
Chemical fixation of carbon dioxide under mild reaction conditions e.g. atmospheric pressure and low temperature depends upon the ability of catalyst. Herein, a synergistic catalytic scheme of silver sulfadiazine/nBu4NBr was described for the three-component reaction of propargylic alcohols, CO2, and monohydric alcohols. This catalytic system was demonstrated effectively to provide β-oxopropyl carbonates in excellent yields (up to 99% yield with 5 mol% catalyst). The method tolerated a wide scope of propargylic alcohols and monohydric alcohols under atmospheric CO2 pressure and solvent-free conditions. The excellent catalytic performance was attributed to the synergistic catalysis confirmed by the careful experiments.
Selective Conversion of CO 2 and Switchable Alcohols into Linear or Cyclic Carbonates via Versatile Zinc Catalysis
Song, Qing-Wen,Zhao, Qing-Ning,Li, Jing-Yuan,Zhang, Kan,Liu, Ping
, p. 739 - 746 (2019/01/23)
It is promising and challenging to achieve the effective construction of carbonates using CO 2 and a non-noble metal catalyst. Herein, selective catalytic conversion of CO 2 and switchable alcohol candidates to produce linear or cyclic carbonates and α-hydroxy ketones via effective zinc catalyst was developed. A series of primary alcohols and cyclohexanol, 1,2-diols, and water can serve as nucleophiles to give alkyl or aryl 2-substituted-3-oxobutan-2-yl carbonates, substituted 1,3-dioxolan-2-ones, 3-substituted 3-hydroxybutan-2-ones, respectively with excellent selectivity and high yields.
Functional Carbonates: Cyclic α-Methylene and β-Oxopropyl Carbonates from Prop-2-ynyl Derivatives and CO2
Joumier, Jean Marc,Fournier, Jean,Bruneau, Christian,Dixneuf, Pierre H.
, p. 3271 - 3274 (2007/10/02)
The phosphine-catalysed synthesis of cyclic α-methylene carbonates 2 directly from prop-2-ynyl alcohol derivatives and CO2 is described.These cyclic carbonates 2 are key intermediates for the selective access to β-oxopropyl carbonates 3 by reaction with alcohols under mild conditions, but in the presence of Et3N or KCN as catalyst.
