摘要二烯基卤代-2-苯并[C]呋喃酮是一类性能优异的新型热敏染料，本文介绍了近年来合成的主要品种，并对其构效关系进行了讨论：Diuinylpolyhalophthalides useful as heat sensitive dye were relationship betueeen structure and property of the dye was discussed.
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