6-Methyl-2-(3-methyl-but-2-enyl)-3-oxo-hept-6-enoic acid methyl ester                                                                                                                                                              在
                                                                                                                                                                                 copper diacetate   、                                                                                                  manganese triacetate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
溶剂黄146                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 (1R,5S,6R)-6-Isopropenyl-5-methyl-2-oxo-bicyclo[3.2.1]octane-1-carboxylic acid methyl ester   、                                                                                             
(1R,5S,6R)-6-Isopropenyl-5-methyl-2-oxo-bicyclo[3.2.1]octane-1-carboxylic acid methyl ester   、                                                                                             (1R,5S,6S)-6-(1-Acetoxy-1-methyl-ethyl)-5-methyl-2-oxo-bicyclo[3.2.1]octane-1-carboxylic acid methyl ester