methyl-tri-tert-butyl-(4)annulene-carboxylate   、                                                                                      
(3,3-Dimethylbutylidin)phosphin                                                                                                                                                                                              以
                                                                                         
正戊烷                                                                                  为溶剂,
                                                                                                                                                    反应 1.0h,
                                                                                                                生成                                                 (1R,4S)-4,5,6-Tri-tert-butyl-3-(2,2-dimethyl-propyl)-2-phospha-bicyclo[2.2.0]hexa-2,5-diene-1-carboxylic acid methyl ester   、                                                                                             
(1S,4S)-1,5,6-Tri-tert-butyl-3-(2,2-dimethyl-propyl)-2-phospha-bicyclo[2.2.0]hexa-2,5-diene-4-carboxylic acid methyl ester