2,3-dimethylbuta-1,3-dienoxy-tri(propan-2-yl)silane 、
4-oxo-4-(2-oxo-oxazolidin-3-yl)-but-2-enoic acid ethyl ester 在
Cu(NTf
2)2 、
N,N'-(4R,4'R,5R,5'R)-2,2'-(propane-2,2-diyl)bis(5-methyl-4,5-dihydrooxazole-4,2-diyl)bis(methylene)dimethanesulfonamide 作用下,
以
硝基甲烷 为溶剂,
以97%的产率得到ethyl (1S,5R,6R)-3,4-dimethyl-6-(2-oxo-1,3-oxazolidine-3-carbonyl)-5-tri(propan-2-yl)silyloxycyclohex-3-ene-1-carboxylate