254749-12-7Relevant academic research and scientific papers
Radical C-H Arylation of Oxazoles with Aryl Iodides: Dppf as an Electron-Transfer Mediator for Cs2CO3
Guo, Zhengwei,Li, Man,Mou, Xue-Qing,He, Gang,Xue, Xiao-Song,Chen, Gong
supporting information, p. 1684 - 1687 (2018/03/23)
A radical C-H arylation reaction of oxazoles with (hetero)aryl iodides using Cs2CO3 as base/electron donor and 1,1′-bis(diphenylphosphino) ferrocene (dppf) as a catalytic SET mediator is reported. The overall reaction likely follows the general base-promoted homolytic aromatic substitution mechanism through a radical-chain pathway. DFT calculations suggest that dppf forms a complex with CsCO3-, enhancing its SET reducing ability to generate an aryl radical from ArI.
Synthesis of oxazoles by silver catalysed oxidative decarboxylation-cyclization of α-oxocarboxylates and isocyanides
Ma, Yiyang,Yan, Zhiyuan,Bian, Changliang,Li, Ke,Zhang, Xiaowen,Wang, Mengfan,Gao, Xinlong,Zhang, Heng,Lei, Aiwen
, p. 10524 - 10527 (2015/06/25)
A silver catalysed synthesis of oxazoles by the oxidative decarboxylation-cyclization of α-oxocarboxylates and isocyanides was developed. This method provided a novel strategy to construct oxazole rings compared to traditional methods. Mechanistic investigations such as operando IR, EPR and radical inhibition experiments were carefully done and confirmed the acyl cation and Ag(ii) as the intermediates in this transformation, and the involvement of a radical decarboxylative process.
TRPV1 ANTAGONISTS
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Page/Page column 35, (2009/05/28)
Compounds of formula (I) wherein R1, R2, R4, and W are defined in the description are TRPV 1 antagonists with CNS penetration. Compositions comprising such compounds and methods for treating conditions and disorders using
Fully automated continuous flow synthesis of 4,5-disubstituted oxazoles
Baumann, Marcus,Baxendale, Ian R.,Ley, Steven V.,Smith, Christoper D.,Tranmer, Geoffrey K.
, p. 5231 - 5234 (2007/10/03)
A multipurpose mesofluidic flow reactor capable of producing gram quantities of material has been developed as an automated synthesis platform for the rapid on-demand synthesis of key building blocks and small exploratory libraries. The reactor is configu
