基于5-氯-2-甲基噻吩的新型俘精酸酐的合成及其光致变色性能测定
Synthesis and Photochromic Properties of Novel Fulgide Based on 5-Chloro-2-methylthiophene
Received date: 2014-11-14
Revised date: 2014-12-25
Online published: 2015-01-09
贡志慧 , 胡炳成 , 余传明 . 基于5-氯-2-甲基噻吩的新型俘精酸酐的合成及其光致变色性能测定[J]. 有机化学, 2015 , 35(5) : 1152 -1155 . DOI: 10.6023/cjoc201411005
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
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