Copper-Mediated Direct Functionalization of Unsaturated C–C Bonds with Ethyl Bromo(difluoro)acetate: A Straightforward Access to Highly Valuable Difluoromethylated Alkenes
作者:Tatiana Besset、Thomas Poisson、Marie-Charlotte Belhomme、Delphine Dru、Heng-Ying Xiong、Dominique Cahard、Xavier Pannecoucke
DOI:10.1055/s-0033-1338637
日期:——
Abstract A copper-mediated fluorofunctionalization of alkenes and alkynes has been developed. This method provides ready access to trisubstituted difluoromethylated olefins (from dihydropyrans, glycal derivatives, or terminal alkynes) or to tetrasubstituted olefins (from disubstituted alkynes). The products were obtained in good to high yields with acceptable E/Z selectivities. Finally, a first direct
摘要 已经开发了铜介导的烯烃和炔烃的氟官能化。该方法提供了三取代二氟甲基化烯烃(来自二氢吡喃,糖基衍生物或末端炔烃)或四取代烯烃(来自二取代炔烃)的制备方法。获得的产品具有良好的收率和高的收率,并具有可接受的E / Z选择性。最后,尽管产率低,但据报道,第一个直接途径是二氟甲基化炔烃。 已经开发了铜介导的烯烃和炔烃的氟官能化。该方法提供了三取代二氟甲基化烯烃(来自二氢吡喃,糖基衍生物或末端炔烃)或四取代烯烃(来自二取代炔烃)的制备方法。获得的产品具有良好的收率和高的收率,并具有可接受的E / Z选择性。最后,尽管产率低,但据报道,第一个直接途径是二氟甲基化炔烃。