8-(1,3-benzodithiol-2-ylidene)methyl-3,3-diphenyl-[3H]-naphtho[2,1-b]pyrane 在
tert-butylammonium hexafluorophosphate(V) 作用下,
以
乙腈 为溶剂,
以83%的产率得到8-[1,2-Bis(1,3-benzodithiol-2-ylidene)-2-(3,3-diphenylbenzo[f]chromen-8-yl)ethyl]-3,3-diphenylbenzo[f]chromene