72506-83-3Relevant academic research and scientific papers
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
Synthesis and structure of an air-stable bis(pentamethylcyclopentadienyl) zirconium pentafluorbezenesulfonate and its application in catalytic epoxide ring-opening reactions
Li, Ningbo,Wang, Lingxiao,Wang, Haojiang,Qiao, Jie,Zhao, Wenjie,Xu, Xinhua,Liang, Zhiwu
, p. 1033 - 1039 (2018/02/06)
An air-stable mononuclear complex of bis(pentamethylcyclopentadienyl) zirconium pentafluorbezenesulfonate was successfully synthesized by treating C6F5SO3Ag with [(CH3)5Cp]2ZrCl2, which showed the cationic uninuclear structure of [{(CH3)5Cp}2Zr(CH3CN)2(H2O)][OSO2C6F5]2·CH3CN (1) confirmed by the X-ray analysis. Complex 1 was also characterized by other techniques and found to have the good nature of air-stability, water tolerance, thermally-stability and strong Lewis-acidity. Moreover, the complex showed high catalytic activity and recyclability in catalytic epoxide ring-opening reactions by amines or alcohols. This catalytic system affords a simple and efficient approach for synthesis of β-amino alcohols or β-alkoxy alcohols.
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
A solvent free method for preparation of β-amino alcohols by ring opening of epoxides with amines using MCM-22 as a catalyst
Baskaran, Thangaraj,Joshi, Akanksha,Kamalakar, Gunda,Sakthivel, Ayyamperumal
, p. 50 - 55 (2016/07/06)
β-amino alcohols were synthesized at room temperature employing microporous MCM-22 zeolite as catalyst in an eco-friendly manner without using solvent. The zeolite MCM-22 showed promising activity for the conversion of primary and secondary amines into β-amino alcohols under mild reaction conditions. The catalytic activity remains intact for three recycles.
Efficient solvent-free aminolysis of epoxides under (C4H 12N2)2[BiCl6]Cl·H 2O catalysis
Lu, Hong-Fei,Sun, Lei-Lei,Le, Wen-Jun,Yang, Fei-Fei,Zhou, Jun-Tao,Gao, Yu-Hua
experimental part, p. 4267 - 4272 (2012/09/22)
An efficient and rapid procedure for ring opening of various epoxides with aromatic, aliphatic and heterocyclic amines is developed at room temperature under solvent-free conditions in the presence of (C4H 12N2)2[BiCl6]Cl·H 2O (1 mol %). This catalyst can be reused several times without losing of its activity.
Solvent-free copper-catalyzed N-arylation of amino alcohols and diamines with aryl halides
Yin, Huiqing,Jin, Ming,Chen, Wei,Chen, Chen,Zheng, Likang,Wei, Ping,Han, Shiqing
supporting information; experimental part, p. 1265 - 1270 (2012/03/27)
A simple and mild method for the coupling of aryl halides with amino alcohols and diamines is described. The reactions can be performed under ligand-free and solvent-free conditions, and generate the products in good yield.
Highly efficient ring opening reactions of epoxides with deactivated aromatic amines catalyzed by heteropoly acids in water
Azizi, Najmedin,Saidi, Mohammad R.
, p. 888 - 891 (2007/10/03)
Heteropoly acid was found to be an effective and efficient catalyst for the ring opening reaction of epoxides with various aromatic amines to produce the corresponding β-amino alcohols in moderate to excellent yields in water. This method provides a new and efficient protocol in terms of mild reaction conditions, clean reaction profiles, small quantity of catalyst, and simple work-up procedure.
The synthesis and substituent effect of the acid catalyzed hydrolysis of amidosulfites
Kutuk, Halil,Bekdemir, Yunus,Turkoz, Nalan
, p. 931 - 937 (2007/10/03)
The acid-catalyzed hydrolysis of 2-oxo-3-(p-substituted)-phenyl-5-methyl-1, 2,3-oxathiazolidines (1) have been studied in 60% (v/v) 1,4 dioxane-aqueous solutions of perchloric and hydrochloric acids at 10.0 ± 0.05°C. The analysis of the kinetic data by th
Synthesis and Spectral Behavior of 5-Methyl-3-phenyl-1,3-oxazolidin-2-ones Using NMR
Nishiyama, Tomihiro,Matsui, Shigeki,Yamada, Fukiko
, p. 1427 - 1429 (2007/10/02)
Heterocyclic compounds of four 5-methyl-3-phenyl-1,3-oxazolidin-2-ones have been synthesized by the reaction of N-2-hydroxyethyl- or N-2-hydroxypropylanilines with phosgene in the presence of pyridine.From the spectral behavior, the title compounds are found to exist in the trans and cis forms.
1,3-Diaryl-2-imino-imidazolidines and compositions thereof
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, (2008/06/13)
The invention relates to new compounds of the general formula (I), STR1 wherein R1 and R5 each represent a phenyl group, optionally substituted, R2 stands for hydrogen, formyl group, carboxy group, lower alkoxycarbonyl gro
