作者:Aijiao Zhang、Lijian Cai、Zhigang Yao、Fan Xu、Qi Shen
DOI:10.1002/hc.21099
日期:2013.9
Lanthanide-catalyzed addition of diethyl phosphite with chalcones was achieved under mild conditions. The reaction exhibited good product selectivity using different catalysts. γ-Oxophosphonates were obtained in high yields in the reactions catalyzed by Yb(OAr)3(THF)2, while those catalyzed by [(Me3Si)2N]3La(μ-Cl)Li(THF)3 afforded 1,2-oxaphospholane-5-phosphonates as the main products in moderate to
在温和条件下实现了镧系元素催化的亚磷酸二乙酯与查耳酮的加成。该反应使用不同的催化剂表现出良好的产物选择性。Yb(OAr)3(THF)2催化的反应以高产率获得γ-氧代膦酸酯,而[(Me3Si)2N]3La(μ-Cl)Li(THF)3催化的反应得到1,2-氧代膦酸酯-5-膦酸盐作为主要产品,收率适中。该方法为具有生物学意义的相应有机磷化合物提供了简便实用的方法。