114010-10-5Relevant academic research and scientific papers
Assessing the Potential for the Reactions of Epoxides with Amines on Secondary Organic Aerosol Particles
Stropoli, Santino J,Elrod, Matthew J.
, p. 10181 - 10189 (2015)
Nuclear magnetic resonance techniques were used to study the kinetics and products of the reaction of a variety of epoxides with various amines under varying pH conditions. In agreement with a previous finding, the amine-epoxide reactions were found to be
Synthesis of meta-Functionalized Pyridines by Selective Dehydrogenative Heterocondensation of β- and γ-Amino Alcohols
Hille, Toni,Irrgang, Torsten,Kempe, Rhett
, p. 371 - 374 (2017)
New reactions that convert alcohols into important classes of compounds are becoming increasingly important as their development contributes to the conservation of our fossil carbon feedstock and the reduction of CO2emissions. Two key catalytic alcohol conversion concepts are borrowing hydrogen or hydrogen autotransfer and acceptorless dehydrogenative condensation. Herein, we combined both concepts to synthesize meta-functionalized pyridines. First, diols and amines were linked to β-amino alcohols, which can then undergo a selective dehydrogenative heterocondensation with γ-amino alcohols. Iridium catalysts stabilized by PN5P pincer ligands that were developed in our laboratory mediate the reactions most efficiently. All of the 3-aminopyridines that we describe in this paper have been synthesized for the first time, emphasizing the degree of innovation of this method and the problems associated with the synthesis of such meta-functionalized pyridines.
Tb2(WO4)3@N-GQDs-FA as an efficient nanocatalyst for the efficient synthesis of β-aminoalcohols in aqueous solution
Azizi, Sajjad,Darroudi, Mahdieh,Soleymani, Jafar,Shadjou, Nasrin
, (2021/02/12)
In the current study, Tb2(WO4)3@N-(GQDs) modified with folic acid (FA) was synthesized during the chemical reaction of terbium (III) tungstate nanoparticles with nitrogen doped graphene quantum dots (N-GQDs) and introduced
Enzyme- and ruthenium-catalyzed dynamic kinetic resolution involving cascade alkoxycarbonylations for asymmetric synthesis of 5-Substituted N-Aryloxazolidinones
Zhang, Yang,Xie, Sheng,Yan, Mingdi,Ramstr?m, Olof
, p. 138 - 144 (2019/04/10)
Asymmetric synthesis of N-aryloxazolidinones via dynamic kinetic resolution was developed. A ruthenium-based catalyst was used in the racemization of β-anilino alcohols, while Candida antarctica lipase B (CAL-B) was applied for two selective alkoxycarbony
Terbium–organic framework as heterogeneous Lewis acid catalyst for β-aminoalcohol synthesis: Efficient, reusable and green catalytic method
Karimi, Meghdad,Hajiashrafi, Taraneh,Heydari, Akbar,Azhdari Tehrani, Alireza
, (2017/10/03)
A terbium–organic framework (Tb-MOF) was prepared using a previously reported procedure. Tb-MOF was characterized using Fourier transform infrared spectroscopy, scanning electron microscopy, powder X-ray diffraction and surface area analysis. Tb-MOF was e
A magnetic nanoparticle-catalyzed regioselective ring opening of epoxides by aromatic amines
Azizi, Najmedin,Kamrani, Parisa,Saadat, Mostafa
, p. 431 - 434 (2016/05/19)
Sulfonic acid-functionalized silica-coated magnetic Fe3O4 nanoparticles were synthesized and applied as a green catalyst for an efficient and environmentally friendly ring opening of epoxides with aromatic amines in good to excellent
A robust and recyclable polyurea-encapsulated copper(I) chloride for one-pot ring-opening/Huisgen cycloaddition/CO2 capture in water
Chen, Yun,Zhang, Wei-Qiang,Yu, Bin-Xun,Zhao, Yu-Ming,Gao, Zi-Wei,Jian, Ya-Jun,Xu, Li-Wen
, p. 6357 - 6366 (2016/12/03)
Multicomponent ring-opening/Huisgen cycloaddition reactions combined with CO2 capture with a polyurea-encapsulated copper salt as a catalyst that in situ formed from simple CuCl and soluble polyurea during the reaction were carried out successf
Lipase-catalyzed kinetic resolution of 3-phenyloxazolidin-2-one derivatives: Cascade O- and N-alkoxycarbonylations
Zhang, Yang,Zhang, Yan,Xie, Sheng,Yan, Mingdi,Ramstr?m, Olof
, p. 11 - 15 (2016/05/09)
A lipase-catalyzed, cascade kinetic resolution protocol has been established for the synthesis of 3-phenyloxazolidin-2-one derivatives with up to excellent enantioselectivities (95% ee). Candida antarctica lipase B showed high catalytic activity and stere
Solvent-free aminolysis of aliphatic and aryloxy epoxides with sulfated zirconia as solid acid catalyst
Shah, Arpan K.,Kumar, Manish,Abdi, Sayed H.R.,Kureshy, Rukhsana I.,Khan, Noor-Ul H.,Bajaj, Hari C.
, p. 105 - 114 (2015/09/28)
Single-step and two-steps synthetic procedure for the synthesis of sulfated zirconia (SZ) was developed, which were calcined at 500, 600 and 700 °C and characterized by various physico-chemical methods such as PXRD, FTIR, surface area, microanalysis, NH3-TPD and DRIFT analysis. These SZ materials were then employed as solid acid catalysts for the aminolysis of different aliphatic/aromatic terminal, aryloxy and meso epoxides with aromatic and aliphatic amines under ambient conditions. Amongst the catalyst prepared, SZ-2-600 prepared in two-steps and 600 ° C calcined was found to be the most efficient catalyst to give p-amino alcohols in up to 98% yield and 7gt;99% regioselectivity. The SZ catalyst was successfully recycled and reused up to six catalytic runs with intact efficiency.
Metal free chemoselective reduction of α-keto amides using TBAF as catalyst
Mamillapalli, N. Chary,Sekar, Govindasamy
, p. 61077 - 61085 (2015/02/19)
The metal and ligand free chemoselective reduction of the keto group and complete reduction of the both keto and amide groups of α-keto amide with hydrosilanes using tetrabutylammoniumflouride (TBAF) as catalyst have been accomplished. This methodology affords an efficient and economic route for the synthesis of biologically important α-hydroxy amides and β-amino alcohols. The other important advantage of this TBAF catalyst is chemoselective reduction of ketones to corresponding alcohols in the presence of several other sensitive functional groups.
