α-Hydroxy acid as an aldehyde surrogate: metal-free synthesis of pyrrolo[1,2-<i>a</i>]quinoxalines, quinazolinones, and other N-heterocycles <i>via</i> decarboxylative oxidative annulation reaction
作者:Mayavan Viji、Manjunatha Vishwanath、Jaeuk Sim、Yunjeong Park、Chanhyun Jung、Seohu Lee、Heesoon Lee、Kiho Lee、Jae-Kyung Jung
DOI:10.1039/d0ra07093a
日期:——
and efficient procedure for the synthesis of pyrrolo[1,2-a]quinoxalines, quinazolinones, and indolo[1,2-a]quinoxaline has been developed. The key features of our method include the in situ generation of aldehyde from α-hydroxy acid in the presence of TBHP (tert-butyl hydrogen peroxide), and further condensation with various amines, followed by intramolecular cyclization and subsequent oxidation to afford
开发了一种无金属且有效的合成吡咯并[1,2- a ]喹喔啉、喹唑啉酮和吲哚[1,2- a ]喹喔啉的方法。该方法的主要特点包括在 TBHP(叔丁基过氧化氢)存在下,由 α-羟基酸原位生成醛,并与各种胺进一步缩合,然后进行分子内环化和随后的氧化,得到相应的喹喔啉、喹唑啉酮衍生物,产率中等至高。