(E)-2-(3,4-Dimethoxy-benzyl)-4,8-dimethyl-nona-3,7-dienenitrile   、                                                                                      
2,2,2-trifluoroethyl 4-chlorobenzenesulfenate                                                                                                                                                              在
                                                                                                                                                                                 boron trifluoride nitrometane adduct                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
硝基甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 0.08h,
                                                                                                                生成                                                 (4bS,7S,8aR,9R)-7-(4-chlorophenyl)sulfanyl-2,3-dimethoxy-4b,8,8-trimethyl-5,6,7,8a,9,10-hexahydrophenanthrene-9-carbonitrile   、                                                                                             (4bS,7S,8aR,9S)-7-(4-chlorophenyl)sulfanyl-2,3-dimethoxy-4b,8,8-trimethyl-5,6,7,8a,9,10-hexahydrophenanthrene-9-carbonitrile