Rh-catalyzed intramolecular aromatic C–H insertion of α-diazo β-ketoesters: synthesis of 4-carbonyl chroman derivatives
作者:Xiaolin Zhang、Mei Lei、Yi-Nan Zhang、Li-Hong Hu
DOI:10.1016/j.tet.2014.03.093
日期:2014.5
A Rh-catalyzed intramolecular aromatic C–H insertion of α-diazo β-ketoesters was developed. This protocol offers a practical strategy for the synthesis of 4-carbonyl chroman derivatives with high yield and is compatible with a wide variety of substituents. Synthetic applications of the 4-carbonyl chroman were also demonstrated.
开发了Rh催化的α-重氮β-酮酸酯的分子内芳族C–H插入。该方案为高产率合成4-羰基苯并二氢吡喃衍生物提供了实用的策略,并且与多种取代基兼容。还证明了4-羰基苯并二氢吡喃的合成应用。