Tritylamine as an Ammonia Surrogate in the Ugi Reaction Provides Access to Unprecedented 5-Sulfamido Oxazoles Using Burgess-type Reagents
作者:Irene Preet Bhela、Marta Serafini、Erika Del Grosso、Gian Cesare Tron、Tracey Pirali
DOI:10.1021/acs.orglett.1c01002
日期:2021.5.7
Starting from a wide range of α-acylamino amide substructures synthesized using tritylamine as an ammonia surrogate in the Ugi reaction, Burgess-typereagents enable cyclodehydration and afford unprecedented oxazole scaffolds with four points of diversity, including a sulfamide moiety in the 5-position. The synthetic procedure employs readily available starting materials and proceeds smoothly under