作者:Kevin W. Anderson、Maria Mendez-Perez、Julian Priego、Stephen L. Buchwald
DOI:10.1021/jo034962a
日期:2003.12.1
detailed study of the palladium-catalyzedamination of aryl nonaflates is reported. Use of ligands 2-4 and 6 allows for the catalytic amination of electron-rich and -neutral aryl nonaflates with both primary and secondary amines. With use of Xantphos 5, the catalytic amination of a variety of functionalized aryl nonaflates resulted in excellent yields of anilines; even 2-carboxymethyl aryl nonaflate is effectively
A rapid synthesis of aryl nonaflate was developed using 4-nitrophenyl triflate and 4-nitrophenyl nonaflate as perfluoroalkanesulfonyl transfer reagents in combination with a polymer supported base (PTBD). Simple filtration of the reaction mixture gave the desired products in high chemical yields and purity. The unique role of PTBD as a base and side product scavenger was demonstrated.