(E)-3-(4-nitrophenyl)prop-2-enyl 3-(5-chloro-1,3-dibenzyl-2-oxo-2,3-dihydro-1H-imidazol-4-yl)-2-methyl-3-oxopropionate 在
manganese triacetate 、
溶剂黄146 作用下,
反应 3.0h,
以35%的产率得到3-(5-chloro-1,3-dibenzyl-2-oxo-2,3-dihydro-1H-imidazol-4-yl)carbonyl-3-methyl-4-[chloro(4-nitrophenyl)methyl]dihydro-2(3H)-furanone