Synthesis and Photochromic Properties of Oxazoly Substituted Fulgide

Abstract

Abstract: 4-[5-Methyl-2-(p-methyloxyphenyl)-4-acetyloxazoly]ethylidene(isoproylidene) succinic anhydride was synthesized by Stobbe condensations of 4-acetyl-5-methyl-2-(p-methyloxyphenyl) oxazole with diethyl 2-isopropylidene succinate in toluene, in the presence of sodium hydride, followed by cyclization of diacid by treatment with acetyl chloride. The photochromic properties of the fulgide in various solvents were studied. The solvent effects on the absorption spectra were also investigated. The analysis results obtained by steady state kinetics show that the photodecoloration of the colored form followed the first-order kinetics. The photocoloration reactions were more complicated and did not fit simple kinetics.

Key words: Fulgide, Photochromism, Absorption spectra, Kinetics

CLC Number:

O662

TrendMD:

LU Zhen, FENG Yu-Lin, CHEN Zhao-Bin, XIAO Jun-Ping, YAN Wen-Peng, FAN Mei-Gong . Synthesis and Photochromic Properties of Oxazoly Substituted Fulgide[J]. Chem. J. Chinese Universities, 2005, 26(8): 1451.

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Synthesis and Photochromic Properties of Oxazoly Substituted Fulgide

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