环戊二烯 、
3-crotonoyl-1,3-oxazolidin-2-one 在
1,1'-{5,5-bis[(S)-4-tert-butyl-4,5-dihydrooxazol-2-yl]nonane-1,9}bis-(1,2-dimethyl-1H-imidazole) diOTs 、 copper(II) bis(trifluoromethanesulfonate) 作用下,
反应 1.0h,
生成
3-[(1S,2S,4R)-3-methylbicyclo[2.2.1]hept-5-ene-2-carbonyl]-1,3-oxazolidin-2-one 、
3-(3-Methylbicyclo[2.2.1]hept-5-ene-2-carbonyl)-1,3-oxazolidin-2-one