Synthesis of (Z)-Cinnamate Esters by Nickel-Catalyzed Stereoinvertive Deoxygenation of trans-3-Arylglycidates
作者:Sunisa Akkarasamiyo、Saranya Chitsomkhuan、Supawadee Buakaew、Joseph S. M. Samec、Pitak Chuawong、Punlop Kuntiyong
DOI:10.1055/s-0040-1719911
日期:2022.9
We report a stereoinvertive deoxygenation of trans-3-arylglycidates as an alternative route to access thermodynamically less stable (Z)-cinnamate esters by using nickel triflate and triphenylphosphine. Broad functional-group tolerance was observed, with trans-3-arylglycidates containing methyl, methoxy, halo, or nitro groups affording the corresponding (Z)-cinnamate esters in high yields and with moderate
我们报告了反式-3-芳基缩水甘油酯的立体反转脱氧作为通过使用三氟甲磺酸镍和三苯基膦获得热力学不太稳定的 ( Z )-肉桂酸酯的替代途径。观察到广泛的官能团耐受性,含有甲基、甲氧基、卤素或硝基的反式-3-芳基缩水甘油酯以高产率和中等到高的E/Z比提供相应的 ( Z )-肉桂酸酯。