Palladium-Catalyzed Synthesis of Nitrones Via Redox Cross-Coupling of Nitro Compounds and Alcohols
作者:Jian Xing、Hong-Yu Tang、Jing-Lin Chen、Zheng Huang、Jun-Jie Liang、Yao-Sheng Quan、Jian-Gang Mao
DOI:10.1021/acs.joc.4c00512
日期:2024.7.19
methodology for the synthesis of nitrones via palladium-catalyzed redox cross-coupling of nitro compounds and alcohols is established. The protocol is a mild, convenient, ligand-free, and scalable synthesis method that can be compatible with various nitro compounds and alcohols. Nitrone is a significant multifunctional platform synthon which can be synthesized directly and efficiently via this tactic from
Exploiting microwave-assisted neat procedures: synthesis of N-aryl and N-alkylnitrones and their cycloaddition en route for isoxazolidines
作者:Marta M. Andrade、Maria Teresa Barros、Rui C. Pinto
DOI:10.1016/j.tet.2008.08.101
日期:2008.11
Microwave irradiation allows increasing the speed of several reactions and also offers the possibility of eliminating poisoning organic solvents. In this work we report the microwave-assisted neat synthesis of alpha-phenyl-tert-butylnitrone (PBN) and other alkyl and aryl nitrones and also the rapid synthesis of isoxazolidines resulting from 1,3-dipolar cycloaddition of nitrones to ethyl trans-crotonate. (c) 2008 Elsevier Ltd. All rights reserved.