General Platform for the Conversion of Isoxazol-5-ones to 3,5-Disubstituted Isoxazoles via Nucleophilic Substitutions and Palladium Catalyzed Cross-Coupling Strategies
作者:Alessandra A. G. Fernandes、Amanda F. da Silva、Celso Y. Okada、Vitor Suzukawa、Rodrigo A. Cormanich、Igor D. Jurberg
DOI:10.1002/ejoc.201900187
日期:2019.5.26
5‐disubstituted isoxazoles has been developed via a two‐step strategy. The first step leads to the formation of 5‐(pseudo)halogenated isoxazoles, while in the second, a variety of heteroalkyl‐, heteroaryl‐, alkyl‐, alkenyl‐, alkynyl‐ and aryl‐chains can be installed via nucleophilic substitutions or palladium catalyzed cross‐coupling reactions.
通过两步策略,已经开发出了将异恶唑-5-酮转化为3,5-二取代异恶唑的通用平台。第一步导致5-(假)卤代异恶唑的形成,而第二步则可以通过亲核取代或钯安装各种杂烷基链,杂芳基链,烷基链,烯基链,炔基链和芳基链催化的交叉偶联反应。