3-(salicylideneamino)-1-hydroxypropane   、                                                                                      
3-(3-hydroxy-1-propyl)amino-1-phenyl-2-butene-1-one                                                                                                                                                              在
                                                                                                                                                                                 
正硅酸四乙酯                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
苯                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 (7
E,7'
E,9'
Z)-8'-methyl-10'-phenyl-5,6,5',6'-tetrahydro-4
H,4'
H-spiro[benzo[
d][1,3,7,2]dioxazasilecine-2,2'-[1,3,7,2]dioxazasilecine]