3-(salicylideneamino)-1-hydroxypropane 、
3-(1-hydroxy-2-butyl)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,6'
E,8'
Z)-5'-ethyl-7'-methyl-9'-phenyl-5,6,4',5'-tetrahydro-4
H-spiro[benzo[
d][1,3,7,2]dioxazasilecine-2,2'-[1,3,6,2]dioxazasilonine]