(1'R,5'R)-Methyl 4-(5'-isopropenyl-2'-methyl-2'-cyclohexenyl)-2-diazo-3-oxo-butanoate 在
bis(N-tert-butylsalicylaldiminato)copper(II) 作用下,
以
甲苯 为溶剂,
反应 0.5h,
以83%的产率得到(-)-(1S,2S,4S,6R,9S)-Methyl 4-isopropenyl-9-methyl-8-oxotricyclo<4.2.1.0
2,9>nonane-1-carboxylate