Pd/NBE-Mediated Annulation of Aryl Triflates with Oxiranes: Efficient Synthesis of 2,3-Dihydrobenzofurans
作者:Jianbin Fu、Lei Yang、Shuo Zhang、Wei Hu、Mengjie Cen、Chunya Li、Long Liu、Tianzeng Huang、Tieqiao Chen
DOI:10.1021/acs.organomet.4c00049
日期:2024.4.8
The direct cyclization of aryl triflates with terminal oxiranes was achieved through palladium/norbornene (Pd/NBE) cooperative catalysis. A wide range of 2,3-dihydrobenzofurans were produced in good to high yields by the strategy. Good functional group tolerance was also demonstrated. This reaction provides an alternative method for preparing value-added 2,3-dihydrobenzofurans starting from readily
通过钯/降冰片烯(Pd/NBE)协同催化实现了芳基三氟甲磺酸酯与末端环氧乙烷的直接环化。通过该策略,可以高收率生产多种 2,3-二氢苯并呋喃。还表现出良好的官能团耐受性。该反应提供了一种从容易获得的酚盐出发制备增值2,3-二氢苯并呋喃的替代方法,并扩大了Catellani型反应在有机合成中的范围。