n-nonylidene triphenylphosphorane   、                                                                                      
(2R,3R,6S,7S)-9-tert-Butyldimethylsilyloxy-6,7-dihydroxy-2,3-epoxy-6,7-O-isopropylidennonanal                                                                                                                                                                                              以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                    反应 0.08h,
                                                                                                                生成                                                 (3S,4S,7R,8R,9Z)-1-tert-Butyldimethylsilyloxy-7,8-epoxy-3,4-O-isopropylidenoctadec-9-ene-3,4-diol   、                                                                                             (3S,4S,7R,8R,9E)-1-tert-Butyldimethylsilyloxy-7,8-epoxy-3,4-O-isopropylidenoctadec-9-ene-3,4-diol