4,8-di-tert-butyl-6-chloro-2,10-dimethoxy-5,7,6-dioxaphosphadibenzo[a,c]cycloheptene   、                                                                                      
(S)-6,6-dimethyl-2-phenyl-4,5,6,7-tetrahydro-benzooxazol-4-ol                                                                                                                                                              在
                                                                                                                                                                                 
吡啶                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                                                        以58%的产率得到(S)-4-((4,8-di-tert-butyl-2,10-dimethoxydibenzo[d,f][1,3,2]dioxaphosphepin-6-yl)oxy)-6,6-dimethyl-2-phenyl-4,5,6,7-tetrahydrobenzo[d]oxazole