关键词: 俘精酸酐, 光致变色, Stobbe缩合

The good photochromic properties was the new target of heterocyclic fulgides development. The new compound, (E)-2-[1-(5-chloro-2-methylthiophen-3-yl)ethylidene]-3-isopropylidene succinic anhydride, was synthesized using 2-methyl- thiophene and diethyl succinate as the starting materials by steps of chlorination, acetylation and Stobbe condensations, and its structure was fully characterized by ¹H NMR, ¹³C NMR and MS techniques. The photochromic properties of the target product were studied under the different illumination time.

Key words: fulgide, photochromism, Stobbe condensations