Enantioselective alkylation of β-keto phosphonates with diaryl methanols in the presence of catalytic amounts of copper(II) trifluoromethanesulfonate and an optically active ligand gives the corresponding alkylated products in good to high yields with a high enantioselectivity.
在催化量的
三氟甲磺酸铜(II)和具有光学活性的
配体存在下,δ-酮
膦酸盐与二芳基
甲醇的对映体选择性烷基化反应可得到相应的烷基化产物,产率从好到高,对映体选择性极高。