3-Allyl-4-[4-(2,4-dimethyl-phenoxy)-but-2-ynyloxy]-6-methyl-pyran-2-one                                                                                                                                                              在
                                                                                                                                         
Grubbs catalyst first generation                                                                                                                                                                          作用下,
                                                                                                                以
                                                                                         
二氯甲烷   、                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                    反应 12.0h,
                                                                                                                生成                                                 (5aS,6S,7S)-9-(2,4-Dimethyl-phenoxymethyl)-2-methyl-4-oxo-5,5a,6,7,8,10-hexahydro-4H-3,11-dioxa-dibenzo[a,d]cycloheptene-6,7-dicarboxylic acid dimethyl ester