(R)-5-(dimethyl(phenyl)silyl)-2-methylcyclohex-2-enone   、                                                                                      
Triethyl-[1-(6-prop-2-enoxy-3,4-dihydronaphthalen-1-yl)ethenoxy]silane                                                                                                                                                              在
                                                                                                                                                                                 
甲基二氯化铝                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 2.5h,
                                                                                                                以85%的产率得到(2R,4aS,4bS,12aR)-8-Allyloxy-2-(dimethyl-phenyl-silanyl)-4a-methyl-11-triethylsilanyloxy-2,3,4a,4b,5,6,12,12a-octahydro-1H-chrysen-4-one