Expedited microwave-assisted N-alkylation of isatins utilizing DBU
作者:Carly A. Jordan、Krystyna B. Wieczerzak、Kyle J. Knisley、Daniel M. Ketcha.
DOI:10.3998/ark.5550190.p008.205
日期:——
The N-alkylation of a variety of isatins with alkyl or benzylic halides can be effected under microwave irradiation in ethanol using 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) as a base. The conditions employed allow for the expedited synthesis of such substrates wherein the products precipitate from the reaction mixture in high yields and high purity after simple filtration. As will be described, microwave