Rearrangement of 3-Hydroxyazetidines into 2-Oxazolines
作者:Michele Ruggeri、Amanda W. Dombrowski、Stevan W. Djuric、Ian R. Baxendale
DOI:10.1021/acs.joc.0c00656
日期:2020.6.5
A novel rearrangement sequence of 3-hydroxyazetidines via a Ritter initiated cascade provides highly substituted 2-oxazolines in high yields. The reaction conditions and substrate scope of the transformation have been studied demonstrating the generality of the process. The derived products can also be functionalized in order to undergo further intramolecular cyclization leading to a new class of macrocycle
[DBU][OAc]-mediated synthesis and anthelmintic activity of triazole–tetrazole conjugates
作者:Madiha A. Siddiqui、Mubarak H. Shaikh、Amol A. Nagargoje、Tarannum T. Shaikh、Vijay M. Khedkar、Prathmesh P. Deshpande、Bapurao B. Shingate
DOI:10.1007/s11164-022-04842-2
日期:2022.12
chemical scaffolds as anthelmintic agents; a series of 1,2,3-triazole–tetrazole conjugates were synthesized. The synthesis of 1,2,3-triazole based tetrazole derivatives has carried out via [2+3]-cycloaddition reaction of triazolyl nitriles with sodium azide. The present design and synthetic strategy offers excellent yields of the products in the presence of [DBU][OAc] under ultrasonic irradiations. The synthesized
Addition dipolaire-1,3 aux olefines portant une substitution captodative: reactivite comparee des α et des β amino acrylnitriles vis a vis des arylazides.