Instant Photochromism Caused by Radical Formation in Photocatalytic Decarboxylation of Dihydrothiazole Derivative

作     者：Zhen Xu Abaid Ullah Malik Mouhai Shu Yong Cui Zhen Xu;Abaid Ullah Malik;Mouhai Shu;Yong Cui

作者机构：School of Chemistry and Chemical EngineeringFrontiers Science Center for Transformative MoleculesShanghai Jiao Tong UniversityShanghai200240 China 

出 版 物：《Chinese Journal of Chemistry》 (中国化学（英文版）)

年 卷 期：2021年第39卷第10期

页      面：2774-2780页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：sponsored by the Natural Science Foundation of Shanghai(Grant No.19ZR1424900) 

主　　题：Photochromism Radicals Photocatalysis Decarboxylation Dihydrothiazole 

摘      要：Main observation and conclusion A pair of new enantiomeric compounds,(R)/(S)-1,3,5-benzene-triyl-2,2 ,2-tris(4,5-dihydrothiazole-4-carboxylic acid)(H3LRRR and H3LSSS)are synthesized in one step synthetic route with high *** photochromism has been investigated to elaborate the photocatalytic decarboxylation of the dihydrothiazole derivative by electron paramagnetic resonance spectroscopy(EPR),photoluminescence(PL),FT-IR,high resolution mass spectra,X-ray photoelectron spectroscopy and UV-Vis spectroscopic *** results indicate that the photochromic transformation is originated from the formation of the radical during the photocatalytic decarboxylation of the 4,5-dihydrothiazole-4-carboxylic acid units.