An efficient synthesis of 2-chloro-3-carboethoxy- or 2-chloro-3-cyano- 4,5-disubstituted and 5-substituted pyrroles
作者:Louise H. Foley
DOI:10.1016/0040-4039(94)88056-5
日期:1994.8
Reaction of substituted 2-cyano-4-oxo-alkanoic acid ethyl esters or 2-cyano-4-oxo-alkanonitriles with HCl gas in 2-propanol or concentrated HCl in 2-propanol for the dinitriles provides an efficientsynthesis of substituted 2-chloropyrroles from readily available starting materials and reagents.
Visible-Light-Mediated Synthesis of Thio-Functionalized Pyrroles
作者:Ashish Kumar Sahoo、Amitava Rakshit、Anjali Dahiya、Avishek Pan、Bhisma K. Patel
DOI:10.1021/acs.orglett.2c00283
日期:2022.3.18
An inimitable illustration of the green-light-induced synthesis of thio-functionalized pyrroles has been established using β-ketodinitriles and thiophenols as the reacting partners and eosin Y as the photocatalyst. Large-scale synthesis and some useful synthetic modifications of the thio-functionalized pyrroles are also demonstrated.
已经使用 β-酮二腈和苯硫酚作为反应伙伴,曙红 Y 作为光催化剂,建立了绿光诱导合成硫代官能化吡咯的独特说明。还展示了硫代官能化吡咯的大规模合成和一些有用的合成修饰。