Convergent Domino Cyclization: Oxidative [3+1+1] Annulation for One‐Pot Synthesis of 2‐Quinoline‐4,5‐diaryl‐oxazoles from Methyl Azaarenes, Benzoins and NH
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作者:Fei‐Fei Liang、Kai‐Xuan Liu、Cong Zhao、Zhi‐Hao Shang、Hong‐Mei Kong、Ya‐Qing Yin、Yan‐Ping Zhu、Yuan‐Yuan Sun、Jian‐Wen Yao
DOI:10.1002/ejoc.202001561
日期:2021.2.12
A metal‐free oxidative [3+1+1] convergent domino annulation has been developed for the synthesis of 2,4,5‐trisubstituted oxazoles. Compared with existing methods, this method has the advantages of wide substrate scope, mild reaction conditions, and obtaining raw materials.
Sonochemical synthesis of polyarylated oxazoles as potential cytotoxic agents
作者:Venkata Ramana Kandula、Mohanreddy Pothireddy、K. Suresh Babu、Ravikumar Kapavarapu、Rambabu Dandela、Manojit Pal
DOI:10.1016/j.tetlet.2021.153011
日期:2021.4
The ultrasound assisted facile, rapid and one-pot synthesis of 2-aryl substituted 4,5-diphenyloxazoles was achieved via the reaction of commercially available benzoin (or 2-hydroxy-2-phenylacetophenone) with benzylamines in the presence of IBX under mild conditions. The methodology involved initial IBX mediated conversion of benzoin to benzil and then reaction with benzylamine followed by intramolecular
Hall, J. Herbert; Chien, Joseph Yuming; Kauffman, Joel M., Journal of Heterocyclic Chemistry, 1992, vol. 29, # 5, p. 1245 - 1273
作者:Hall, J. Herbert、Chien, Joseph Yuming、Kauffman, Joel M.、Litak, Peter T.、Adams, Jeffrey K.、et al.
DOI:——
日期:——
Reductive Hydroxymethylation of 4‐Heteroarylpyridines
作者:Hamish B. Hepburn、Timothy J. Donohoe
DOI:10.1002/chem.202000060
日期:2020.2.11
reaction to proceed smoothly, facilitating the preparation of useful 3D heteroaryl-substituted functionalized piperidines. The methodology is used to prepare 3-hydroxymethylated analogues of pharmaceutical agents. Mechanistically, formaldehyde acts as both a hydride donor and the electrophile, leading to the formation of two new carbon-hydrogen bonds and one new carbon-carbon bond under relatively mild conditions