叔丁基乙烯基醚   、                                                                                      
ethyl (E)-2-diethoxyphosphoryl-3-(4-methoxyphenyl)propendithioate                                                                                                                                                                                                                                                                              20.0 ℃
                                                                                                                            、1099.99 MPa
                                                                                条件下,
                                                                                                                反应 192.0h,
                                                                                                                生成                                                 trans-2-tert-butoxy-5-diethoxyphosphonyl-3,4-dihydro-6-ethylthio-4-(4-methoxyphenyl)-2H-thiopyran   、                                                                                             cis-2-tert-butoxy-5-diethoxyphosphonyl-3,4-dihydro-6-ethylthio-4-(4-methoxyphenyl)-2H-thiopyran