ChemInform Abstract: [CoCl(TPPyP)], a Novel Bifunctional Catalyst for the Coupling Reaction of Carbon Dioxide and Propylene Oxide.

ChemInform ◽  
2011 ◽  
Vol 42 (15) ◽  
pp. no-no
Author(s):  
Tiegang Ren ◽  
Weijie Li ◽  
Zhanwei Bu ◽  
Lirong Yang ◽  
Zhiqiang Wang
Keyword(s):  
Carbon Dioxide ◽  
Propylene Oxide ◽  
Coupling Reaction ◽  
Bifunctional Catalyst

[CoCl(TPPyP)], a novel bifunctional catalyst for the coupling reaction of carbon dioxide and propylene oxide

2010 ◽  
Vol 34 (7) ◽  
pp. 361-364 ◽  
Author(s):  
Tiegang Ren ◽  
Weijie Li ◽  
Zhanwei Bu ◽  
Lirong Yang ◽  
Zhiqiang Wang
Keyword(s):  
Carbon Dioxide ◽  
Propylene Oxide ◽  
Coupling Reaction ◽  
Bifunctional Catalyst

Protic pyrazolium ionic liquids for efficient chemical fixation of CO2: design, synthesis, and catalysis

2018 ◽  
Vol 3 (2) ◽  
pp. 348-356 ◽  
Author(s):  
Danning Zheng ◽  
Tengfei Wang ◽  
Xinrui Zhu ◽  
Ci Chen ◽  
Tiegang Ren ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Catalytic Activity ◽  
Ionic Liquids ◽  
Propylene Oxide ◽  
Coupling Reaction ◽  
Chemical Fixation ◽  
Design Synthesis

Three new protic pyrazolium ILs, HTMPzBr, HMM3PzBr, and HMM5PzBr, have been synthesized to explore their catalytic activity for the coupling reaction of carbon dioxide and propylene oxide.

Carbon dioxide/propylene oxide coupling reaction catalyzed by chromium salen complexes

Polymer ◽  
2009 ◽  
Vol 50 (2) ◽  
pp. 441-446 ◽  
Author(s):  
Yongsheng Niu ◽  
Wanxi Zhang ◽  
Hongchun Li ◽  
Xuesi Chen ◽  
Jingru Sun ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Propylene Oxide ◽  
Coupling Reaction ◽  
Salen Complexes

A DFT-Weaving of Single Component Bifunctional Organocatalysts for Carbon dioxide/Propylene Oxide Coupling Reaction

2021 ◽  
Author(s):  
Morad El-Hendawy ◽  
Ibtesam Desoky ◽  
Mahmoud M. Mohamed
Keyword(s):  
Carbon Dioxide ◽  
Density Functional Theory ◽  
Dft Calculations ◽  
Propylene Oxide ◽  
Density Functional ◽  
Coupling Reaction ◽  
Single Component ◽  
Coupling Reactions ◽  
Functional Theory ◽  
Mild Conditions

The work aims to develop single-component bifunctional organic catalysts capable of effectively coupling reactions between CO2 and propylene epoxide (PO) under mild conditions using density functional theory (DFT) calculations. The...

Temperature-responsive Catalyst for the Coupling Reaction of Carbon Dioxide and Propylene Oxide

2018 ◽  
Vol 36 (4) ◽  
pp. 299-305 ◽  
Author(s):  
Chunwei Zhuo ◽  
Yusheng Qin ◽  
Xianhong Wang ◽  
Fosong Wang
Keyword(s):  
Carbon Dioxide ◽  
Propylene Oxide ◽  
Coupling Reaction ◽  
Temperature Responsive

Chiral salenCo(iii) complexes with bulky substituents as catalysts for stereoselective alternating copolymerization of racemic propylene oxide with carbon dioxide and succinic anhydride

2021 ◽  
Vol 12 (12) ◽  
pp. 1776-1786
Author(s):  
Zhou Wang ◽  
Ying Mu
Keyword(s):  
Carbon Dioxide ◽  
Propylene Carbonate ◽  
Propylene Oxide ◽  
Succinic Anhydride ◽  
Poly Propylene ◽  
Alternating Copolymerization

Stereoregular poly(propylene carbonate)s and poly(propylene succinate-block-carbonate)s were synthesized with new chiral salenCo(iii) catalysts carrying bulky substituents.

scholarly journals Tertiary Amines Paired with Trialkyl Boranes: A Simple Organocatalyst for Fully Alternating Copolymerization of Carbon Dioxide and Propylene Oxide

2020 ◽  
Author(s):  
Xing-Hong Zhang
Keyword(s):  
Carbon Dioxide ◽  
Small Molecules ◽  
Propylene Oxide ◽  
Average Molecular Weight ◽  
Tertiary Amines ◽  
Carbon Dioxide Co2 ◽  
Poly Propylene ◽  
Alternating Copolymerization ◽  
Completely Alternating ◽  
Huge Challenge

Metal-free synthesis of fully alternating polycarbonates from carbon dioxide (CO2) and epoxides is highly desired but a huge challenge. Here, we disclose the combination of tertiary amines with trialkyl boranes for completely alternating copolymerization of CO2 with epoxides. Triethylamine (TEA) pairing with triethyl borane (TEB), the simplest catalyst for the copolymerization of CO2 and propylene oxide (PO), afforded fully alternating poly(propylene carbonate) (PPC) with a turnover frequency (TOF) of 54 h-1 at 60 oC. Remarkably, diamine such as, N,N,N',N'-tetraethylethylenediamine (TEED) and triamine such as N,N,N',N'',N''-pentamethyldiethylene triamine (PMDETA) pairing with TEB exhibited improved the copolymer selectivity of up to 99%. Supplementally, the effect of trialkylborane structure on the copolymerization were also investigated. Moreover, PPCs prepared from these tertiary amines/ trialkyl boranes Lewis pairs showed the head-to-tail diad content of around 80%. The number-average molecular weight of PPC was up to 56.0 kg/mol with narrow distribution (Đ =1.16) and could be easily adjusted by simply varying the feeding ratios. The 1H NMR spectra and MALDI-TOF-MS spectra suggest that both tertiary amine-activating CO2 and TEB-masked end anions cooperatively promote the fully alternating CO2/epoxide copolymerization. This work provides an organocatalytic platform for well-defined CO2/epoxide copolymers using simple small molecules with high atomic utilization.<br>

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