硼酸三甲酯 、
2-((5-(2-hydroxybenzylideneamino)pentylimino)methyl)phenol 以
甲苯 为溶剂,
以50%的产率得到4-[5-(3,3-Dimethoxy-2-oxa-4-azonia-3-boranuidabicyclo[4.4.0]deca-1(10),4,6,8-tetraen-4-yl)pentyl]-3,3-dimethoxy-2-oxa-4-azonia-3-boranuidabicyclo[4.4.0]deca-1(10),4,6,8-tetraene