spiro[1-oxa-3-azonia-2-boranuidacyclopentane-2,2'-2-boranuidatricyclo[9.4.0.03,8]pentadeca-1(15),3,5,7,11,13-hexaene] 、
1-Phenyl-2-morpholino-ethanol-(1)-N-oxid 以
乙醇 为溶剂,
以85%的产率得到4,4-(3-oxapentamethylene)-6-phenylspiro{(1,3-dioxa-4-azonia-2-boratacyclohexane)-2,1'-(4',5'-dihydrodibenzo{b,f}boratepin)}