Synthesis of Oxazolidinones and Derivatives through Three-Component Fixation of Carbon Dioxide
作者:Congmin Mei、Yibo Zhao、Qianwei Chen、Changsheng Cao、Guangsheng Pang、Yanhui Shi
DOI:10.1002/cctc.201800142
日期:2018.7.19
three‐component fixation of atmospheric CO2 with readily available 1,2‐dichloroethane and aromatic amine toward oxazolidinones catalyzed by in situ NHC was developed. The reaction occurred in good to excellent yields with good generality and wide functional group tolerance, including challenging steric hindered substituted‐dichloroethane (e.g. 1,2‐dichloropropane and 2,3‐dichlorobutane). The catalytic system
Anomalous ring opening of N-aryl-2-oxazolidinones by anhydrous alkoxide: A convenient preparation of n-(alkoxyethyl)-2,6-disubstituted anilines
作者:L.W. Fancher、R.D. Gless、R.Y. Wong
DOI:10.1016/s0040-4039(00)80688-7
日期:1988.1
es may be prepared by acylation of an N-unsubstituted aniline with 2-chloroethyl chloroformate, ring closure to oxazolidinone, ringopening with alkoxide under anhydrous conditions to a carbamic acid salt, and decarboxylation. This unexpected mode of ringopening is especially useful in the preparation of N-(2-alkoxyethyl)-2,6-disubstituted anilines.
Synthesis of N-aryl-2-oxazolidinones from cyclic carbonates and aromatic amines catalyzed by bio-catalyst
作者:Congmin Mei、Yibo Zhao、Ke Zou、Changsheng Cao、Guangsheng Pang、Yanhui Shi
DOI:10.1007/s11164-017-3222-y
日期:2018.3
A convenient and effective method of synthesizing 3-aryl-2-oxazolidinones from cyclic carbonates and aryl amines catalyzed by bio-catalyst adenine in the presence of Et3N under solvent-free conditions is described. The protocol is suitable for the wide scope of substrates, e.g. cyclic carbonates with or without substitutes, and aryl amines with either electron-withdrawing or electron-donating group
[EN] OXAZOLIDINONES AS MODULATORS OF MGLUR5<br/>[FR] OXAZOLIDINONES EN TANT QUE MODULATEURS DE MGLUR5
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2012064603A1
公开(公告)日:2012-05-18
The disclosure generally relates to compounds of formula I, including their salts, as well as compositions and methods of using the compounds. The compounds are ligands, agonists and partial agonists for the mGluR5 receptor and may be useful for the treatment of various disorders of the central nervous system.
Short and Practical Synthesis of N′,N′-Disubstituted <i>N</i>-Aryl-1,2-Ethylenediamines by a Decarboxylative Ring-Opening Reaction under Nucleophilic Conditions
N-aryl-1,2-ethylenediamines, starting from anilines, via N-aryloxazolidin-2-ones is described. A decarboxylative ring-openingreaction of N-aryloxazolidin-2-ones, using aliphatic secondary amines, is the key step in this procedure. A one-pot synthesis ofN-aryloxazolidin-2-ones is also described. N',N'-Disubstituted N-aryl-1,2-ethylenediamines are a useful building block for biologically active compounds