作者:David Egea‐Arrebola、F. Wieland Goetzke、Stephen P. Fletcher
DOI:10.1002/anie.202217381
日期:2023.3.20
We report bench-stable cyclobutenone surrogates that undergo Rh-catalyzed addition of aryl- and vinylboronic acids to yield cyclobutenyl enol ethers in high yields and excellent enantioselectivities. This transformation proceeds via enantioselective carbometalation to give cyclobutyl-rhodium intermediates, followed by β-oxygen elimination. The reaction is fast and proceeds under mild conditions.
我们报道了实验室稳定的环丁烯酮替代物,它们经过 Rh 催化的芳基硼酸和乙烯基硼酸加成,以高产率和优异的对映选择性生成环丁烯基烯醇醚。该转化通过对映选择性碳金属化进行,得到环丁基铑中间体,然后消除β-氧。该反应快速且在温和条件下进行。