6-(benzo[d][1,3]dioxol-5-yl)-3,4-dihydronaphthalen-2(1H)-one   、                                                                                      
碳酸二乙酯                                                                                                                                                                                                                                                                                                          以ethyl 6-(benzo[d][1,3]dioxol-5-yl)-2-oxo-1,2,3,4-tetrahydronaphthalene-1-carboxylate was obtained as a yellow oil in 23% yield的产率得到ethyl 6-(benzo[d][1,3]dioxol-5-yl)-2-oxo-1,2,3,4-tetrahydronaphthalene-1-carboxylate