Direct, visible light-sensitized benzylic C H fluorination of peptides using dibenzosuberenone: selectivity for phenylalanine-like residues
作者:Desta Doro Bume、Cody Ross Pitts、Rayyan Trebonias Jokhai、Thomas Lectka
DOI:10.1016/j.tet.2016.08.018
日期:2016.10
A visible light-sensitized benzylic sp3 CH fluorination protocol using dibenzosuberenone (5 mol %) and Selectfluor® is optimized for the direct functionalization of phenylalanine-like residues in short chain peptides. Amino acids, dipeptides, and tripeptides undergo benzylic fluorination with remarkable regioselectivity in the presence of protected basic, acidic, and nonpolar side chains (including
可见光敏化苄SP 3 Ç ħ氟化使用dibenzosuberenone(5摩尔%)和的Selectfluor协议®为苯丙氨酸样在短链肽的残基的直接官能优化。在受保护的碱性,酸性和非极性侧链(包括具有叔位的侧链)存在下,氨基酸,二肽和三肽会经历显着的区域选择性的苄基氟化反应。此外,还探讨了保护基团的兼容性,克规模应用和竞争实验。