Malonate-type bis(oxazoline) ligands with sp2 hybridized bridge carbon: synthesis and application in Friedel–Crafts alkylation and allylic alkylation
作者:Hongliang Chen、Fengpei Du、Lei Liu、Jing Li、Qiuying Zhao、Bin Fu
DOI:10.1016/j.tet.2011.09.106
日期:2011.12
the Friedel–Crafts reaction and allylic alkylation. The Cu(II) complex of ligand 4b bearing the benzyl group afforded good to excellent enantioselectivity for the F–C adducts (up to >99% ee) between indole and alkylidene malonate, and the palladium complex of ligand 4c bearing the phenyl group afforded excellent enantioselectivity (up to 94% ee) for the allylic alkylation product.
合成了一系列简单且新颖的C 2对称的二苯基亚甲基丙二酸酯型双(恶唑啉)配体,并将其应用于Friedel-Crafts反应和烯丙基烷基化反应。铜(II)配合物的配体的图4b带有苄基,得到良好至优异的对映选择性为˚F - Ç吲哚和亚丙二之间加合物(高达> 99%ee)的,和钯配合物的配体的4C带有苯基,得到对烯丙基烷基化产物具有优异的对映选择性(高达94%ee)。