20805-26-9Relevant academic research and scientific papers
Carbon dioxide Fixation forming Oxazolidone coupled with a Thio/Fe4S4 Cluster Redox System
Kodaka, Masato,Tomohiro, Takenori,Lee, Ah Lek,Okuno, Hiroaki(Yohmei)
, p. 1479 - 1481 (1989)
Carbon dioxide fixation reactions with ethanolamines to form oxazolidone derivatives have been investigated using 4Fe-Σ ferredoxin analogues as the electron mediator.
Non-precious metal carbamates as catalysts for the aziridine/CO2coupling reaction under mild conditions
Bresciani, Giulio,Zacchini, Stefano,Marchetti, Fabio,Pampaloni, Guido
, p. 5351 - 5359 (2021/04/26)
The catalytic potential of a large series of easily available metal carbamates (based on thirteen different non-precious metal elements) was explored for the first time in the coupling reaction between 2-aryl-aziridines and carbon dioxide, working under solventless and ambient conditions and using tetraalkylammonium halides as co-catalysts. The straightforward synthesis of novel [NbCl3(O2CNEt2)2],NbCl, and [NbBr3(O2CNEt2)2],NbBr, is reported. The niobium complexNbCl, in combination with NBu4I, emerged as the best catalyst of the overall series to convert aziridines with smallN-alkyl substituents into the corresponding 5-aryl-oxazolidin-2-ones.
Diethylammonium iodide as catalyst for the metal-free synthesis of 5-aryl-2-oxazolidinones from aziridines and carbon dioxide
Bresciani, Giulio,Bortoluzzi, Marco,Pampaloni, Guido,Marchetti, Fabio
, p. 4152 - 4161 (2021/05/19)
The catalytic potential of ammonium halide salts was explored in the coupling reaction of a model aziridine with carbon dioxide, highlighting the superior activity of [NH2Et2]I. Then, working at room temperature, atmospheric CO2 pressure and in the absenc
Fast and Robust Synthesis of Metalated PCN-222 and Their Catalytic Performance in Cycloaddition Reactions with CO2
Carrasco, Sergio,Martín-Matute, Belén,Sanz-Marco, Amparo
supporting information, (2019/08/26)
A simple and quick setup for the synthesis of PCN-222 and of a variety of metalated PCN-222(Co, Ni, Cu, and Zn), using of a microwave reactor, is reported for CO2 fixation. Metalation of prophyrins by microwave heating has been evaluated throug
A metal-metalloporphyrin framework based on an octatopic porphyrin ligand for chemical fixation of CO2 with aziridines
Wang, Xun,Gao, Wen-Yang,Niu, Zheng,Wojtas, Lukasz,Perman, Jason A.,Chen, Yu-Sheng,Li, Zhong,Aguila, Briana,Ma, Shengqian
supporting information, p. 1170 - 1173 (2018/02/09)
A new porous metal-metalloporphyrin framework, MMPF-10, has been constructed from an octatopic porphyrin ligand, which links copper paddlewheel units to form a framework with fmj topology. In situ metallation of the porphyrin ligands provides MMPF-10 with two unique accessible Cu(ii) centers. This allows it to behave as an efficient Lewis acid catalyst in the first reported reaction of CO2 with aziridines to synthesize oxazolidinones catalyzed by an MMPF.
CO2 transformation under mild conditions using tripolyphosphate-grafted KCC-1-NH2
Sadeghzadeh, Seyed Mohsen,Zhiani, Rahele,Moradi, Marjan
, p. 535 - 544 (2018/04/26)
Fibrous nanosilica (KCC-1) as a catalyst support was investigated in terms of stability, recycling, and reusability. For the first time, CO2 transformation was performed via the synthesis and application of KCC-1 together with sodium tripolyphosphate (STPP) and 3-aminopropyltriethoxysilane (APTES) as its functionalized derivative. To this goal, KCC-1/STPP NPs were applied to act as a nanocatalyst with excellent catalytic activities under green reaction conditions.
Activation of (salen)CoI complex by phosphorane for carbon dioxide transformation at ambient temperature and pressure
Zhou, Feng,Xie, Shi-Liang,Gao, Xiao-Tong,Zhang, Rong,Wang, Cui-Hong,Yin, Guang-Qiang,Zhou, Jian
supporting information, p. 3908 - 3915 (2017/08/22)
We report the activation of (salen)CoI complex 3g by a phosphorane to form a bifunctional catalyst for the reaction of carbon dioxide with terminal epoxides or aziridines at ambient temperature and 1 bar carbon dioxide pressure. Only 1.0 mol% of both (salen)CoI 3g and phosphorane 4d are required for cyclic carbonate synthesis, and the catalyst loading could even be lowered down to 0.1 mol%. Under these conditions, no polycarbonate formation is detected by NMR analysis. It is proposed that the high efficiency originates from the activation of (salen)CoI by a phosphorane to form a phosphorane-salen Co(iii) complex with enhanced Lewis acidity for the electrophilic activation while generating an iodide anion as a Lewis base co-catalyst to facilitate the ring-opening of epoxides. Further investigation revealed that the phosphorane-(salen)CoI complex could also successfully catalyze the coupling of CO2 with aziridines under ambient conditions at a catalyst loading of 2.5 mol%.
State-of-the-art catechol porphyrin COF catalyst for chemical fixation of carbon dioxide: Via cyclic carbonates and oxazolidinones
Saptal, Vitthal,Shinde, Digambar Balaji,Banerjee, Rahul,Bhanage, Bhalchandra M.
, p. 6152 - 6158 (2016/08/05)
A highly porous, crystalline catechol porphyrin COF was synthesized and applied as an organocatalyst for the chemical fixation of carbon dioxide to synthesize value-added chemicals such as cyclic carbonates and oxazolidinones under solvent-free and transition-metal-free conditions. The high surface area and the functionalities of the COF catalyst act synergistically to activate the starting material. The 2,3-DhaTph shows excellent activity towards cyclic carbonates at the atmospheric pressure of carbon dioxide. Additionally, this catalytic system is recyclable in nature and provides a higher turnover number than previously reported organocatalysts.
N-heterocyclic olefins as robust organocatalyst for the chemical conversion of carbon dioxide to value-added chemicals
Saptal, Vitthal B.,Bhanage, Bhalchandra M.
, p. 1980 - 1985 (2017/07/13)
In this report, the activity of N-heterocyclic olefins (NHOs) as a newly emerging class of organocatalyst is investigated for the chemical fixation of carbon dioxide through reactions with aziridines to form oxazolidinones and the N-formylation of amines with polymethylhydrosiloxane (PMHS) or 9-borabicy-clo[3.3.1]nonane (9-BBN) as the reducing agent under mild conditions. The exocyclic carbon atoms of NHOs are highly nucleophilic owing to the electron-donating ability of the two nitrogen atoms. This high nucleophilicity of the NHOs activates CO2 molecules to form zwitterionic NHO–carboxylate (NHO– CO2) adducts, which are active in formylation reactions as well as the carboxylation of aziridines to oxazolidinones.
Synthesis of chiral oxazolidinone derivatives through lipase-catalyzed kinetic resolution
Zhang, Yan,Zhang, Yang,Ren, Yansong,Ramstr?m, Olof
, p. 29 - 34 (2015/09/15)
The synthesis of enantioenriched oxazolidinone derivatives through lipase-catalyzed kinetic resolution is described. The synthesis comprised a two-step, cascade acylation in one pot, resulting in a range of oxazolidinone derivatives in good yields and exc
