1-butyl-2-(2-(3-(2-(1-butyl-3,3-dimethylindolin-2-ylidene)ethylidene)-2-chlorocyclohex-1-en-1-yl)vinyl)-3,3-dimethyl-3H-indol-1-ium iodide 、
对苯二酚 在
potassium carbonate 作用下,
以
乙腈 为溶剂,
以43%的产率得到1-butyl-2-(2-(3-(2-(1-butyl-3,3-dimethylindolin-2-ylidene)ethylidene)-2-(4-hydroxyphenoxy)cyclohex-1-en-1-yl)vinyl)-3,3-dimethyl-3H-indol-1-ium iodide