4-methyl-2,6-diphenylthiopyrylium hexafluorophosphate 、
4-(4-oxo-6-phenyl-4H-selenopyran-2-yl)phenylphosphonic acid 在
乙酸酐 作用下,
以
溶剂黄146 为溶剂,
反应 0.42h,
以65%的产率得到2,6-diphenyl-4-((2-phenyl-6-(4-phosphonophenyl)-4H-selenopyran-4-ylidene)methyl)thiopyrylium hexafluorophosphate