92288-02-3Relevant articles and documents
Synthesis of 2-oxazolidinone by N-heterocyclic carbene-catalyzed carboxylative cyclization of propargylic amine with CO2
Fujita, Ken-Ichi,Fujii, Akira,Sato, Junichi,Onozawa, Shun-Ya,Yasuda, Hiroyuki
, p. 1282 - 1284 (2016)
By employing N-heterocyclic carbenes as catalysts, the carboxylative cyclization of propargylic amine proceeded under 0.6 MPa of CO2 to afford the corresponding 2-oxazolidinone at 90 °C in 2-propanol. Among N-heterocyclic carbenes, 1,3-di-t-but
Silver(I)-Catalyzed Synthesis of β-Oxopropylcarbamates from Propargylic Alcohols and CO2 Surrogate: A Gas-Free Process
Song, Qing-Wen,Zhou, Zhi-Hua,Yin, Hong,He, Liang-Nian
, p. 3967 - 3972 (2015)
The utilization of carbon dioxide poses major challenges owing to its high thermodynamic stability and kinetic inertness. To circumvent these problems, a simple reaction system is reported comprising ammonium carbamates as carbon dioxide surrogates, propargylic alcohols, and a silver(I) catalyst, for the effective conversion of a wide range of alcohols and secondary amines into the corresponding β-oxopropylcarbamates. A key feature of this strategy includes quantitative use of a carbon resource with high product yields under gas-free and mild reaction conditions. Notably, this catalytic protocol also works well for the carboxylative cyclization of propargylic amines and carbon dioxide surrogates to afford 2-oxazolidinones.
Carboxylative Cyclization of Propargylic Amines with Carbon Dioxide?- Catalyzed by Poly(amidoamine)-Dendrimer-Encapsulated Gold Nanoparticles
Choi, Jun-Chul,Fujii, Akira,Fujita, Ken-Ichi,Fujitani, Tadahiro,Matsuo, Hideaki
, p. 1914 - 1918 (2019)
We prepared gold nanoparticles encapsulated in poly(amidoamine) (PAMAM) dendrimers as templating agents. The resulting gold nanoparticles were used as catalysts for the carboxylative cyclization of propargylic amines with carbon dioxide to afford the corr
Quaternary ammonium salt-catalyzed carboxylative cyclization of propargylic amines with CO2
Fujii, Akira,Choi, Jun-Chul,Fujita, Ken-ichi
, p. 4483 - 4486 (2017)
By employing quaternary ammonium salts as catalysts, the carboxylative cyclization of the propargylic amines with CO2 proceeded to afford the corresponding 2-oxazolidinones. In particular, tetra-n-butylammonium fluoride was the most effective c
PrVO4/SnD NPs as a Nanocatalyst for Carbon Dioxide Fixation to Synthesis Benzimidazoles and 2-Oxazolidinones
He, Zemin,Yu, Ping,Zhao, Yuzhen,Zhang, Huimin,Zhang, Yongming,Kang, Xiaoxi,Zhang, Haiquan,Sadeghzadeh, Seyed Mohsen
, p. 1623 - 1632 (2020/10/19)
Recently CO2 stabilization has received a great deal of attention because of its probable applications as a rich C1 resource and the synthesis of several fine chemicals can be accomplished through this stabilization. In this study, Sn(IV) doping dendritic fibrous nanosilica (SnD) supported PrVO4 nanoparticles as a catalyst (PrVO4/SnD) was synthesized by a in-situ procedure. The SnD with the ratios of Si/Sn in a variety of 6 to 40 were acquired through direct hydrothermal synthesis (DHS), and PrVO4 NPs on the surfaces of SnD were reduced in-situ. X-Ray diffraction (XRD), Scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), and X-ray energy dispersive spectroscopy (EDS) were deployed for identifying the PrVO4/SnD. It is potentially a highly dynamic catalyst in the stabilization of CO2 for the production of 2-oxazolidinones and benzimidazoles. In addition, the catalyst is very easy to recycle and reuse without significant loss of active site Cu metal. Graphic Abstract: PrVO4/SnD NPs as a nanocatalyst for carbon dioxide fixation to synthesis benzimidazoles and 2-oxazolidinones. [Figure not available: see fulltext.]
Expanded Ring NHC Silver Carboxylate Complexes as Efficient and Reusable Catalysts for the Carboxylative Cyclization of Unsubstituted Propargylic Derivatives
Cervantes-Reyes, Alejandro,Saxl, Tobias,Stein, Philipp M.,Rudolph, Matthias,Rominger, Frank,Asiri, Abdullah M.,Hashmi, A. Stephen K.
, p. 2367 - 2374 (2021/04/21)
Stabilized by a bulky N-heterocyclic carbene [BPDPr, 1,3-bis(2,6-diisopropylphenyl)-1,3-diazonine-2-ylidene] ligand, new silver carboxylate complexes of the form BPDPrAgO2C-R (R=Me, Ph) have been synthesized and fully char
