5-{1-[4-(benzyloxy)phenyl]ethylidene-2,2-dimethyl-1,3-dioxane}-4,6-dione 、
diethylzinc 在
copper(II) bis(trifluoromethanesulfonate) 、
(3,5-Dioxa-4-phospha-cyclohepta[2,1-a;3,4-a']dinaphthalen-4-yl)-bis-((R)-1-phenyl-ethyl)-amine 作用下,
以
乙二醇二甲醚 为溶剂,
以75%的产率得到(R)-5-(1-[4-(benzyloxy)phenyl]-1-methylpropyl)-2,2-dimethyl-1,3-dioxane-4,6-dione