3-(2-hydroxyphenyl)-1,3-diphenylprop-2-en-1-one                                                                                                                                                              在
                                                                                                                                                                                 (Ra)-4-hydroxy-2,6-bis(2,4,6-triisopropylphenyl)-5,5’,6,6’,7,7’,8,8’-octahydrodinaphtho[1,3,2]dioxaphosphepine 4-oxide   、                                                                                                  
diallyl 2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                    反应 12.0h,
                                                                                                                以69%的产率得到(R)-2,4-diphenyl-4H-chromene