Squaraines inside zeolites: preparation, stability, and photophysical properties

Maria Luz Cano; Frances L.Cozens; Maria A.Esteves

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Squaraines inside zeolites: preparation, stability, and photophysical properties

机译：沸石中的南瓜素：制备，稳定性和光物理性质

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A series of four symmetrical squaraines (ditoylyl, di-m-xylyl, dianisyl, and diresorcinyl) incorporated inside zeolites Y, mordenite, and ZSM-5 have been obtained by treating squaric acid and the correspnding arene in the presence of acid zeolites. Acid sites and high reaction temperatures (150 deg C) were found to be crucial for the success of the preparation procedure. Surprisingly, this method failed for the preparation of the squaraine derived from N,N-dimethylaniline, which is known to be reaily formed from squaric acid in homogeneous phase without a catalyst.

机译：通过在酸沸石的存在下处理方酸和相应的芳烃，已经获得了掺入沸石Y，丝光沸石和ZSM-5内的一系列四个对称的方酸（二甲苯基，二间二甲苯基，二苯甲酰基和二间苯二酚基）。发现酸位和高反应温度（150摄氏度）对于制备过程的成功至关重要。出人意料的是，该方法未能制备衍生自N，N-二甲基苯胺的方酸，该方酸已知是由方酸在均相中直接形成而无需催化剂。

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《The Journal of Organic Chemistry》 |1997年第21期|p.7121-7127|共7页
作者
Maria Luz Cano; Frances L.Cozens; Maria A.Esteves;
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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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正文语种 eng
中图分类有机化学;
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Squaraines inside zeolites: preparation, stability, and photophysical properties

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