Oveisi Ali R, Zhang Kainan, Khorramabadi-zad Ahmad, Farha Omar K, Hupp Joseph T
1] Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA [2] Faculty of Chemistry, Bu-Ali Sina University, Hamedan 65174, Iran.
Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA.
Sci Rep. 2015 Jul 16;5:10621. doi: 10.1038/srep10621.
A new porphyrin-based porous organic polymer (POP) with BET surface area ranging from 780 to 880 m(2)/g was synthesized in free-base form via the reaction of meso-tetrakis(pentafluorophenyl) porphyrin and a rigid trigonal building block, hexahydroxytriphenylene. The material was then metallated with Fe(III) imparting activity for Lewis acid catalysis (regioselective methanolysis ring-opening of styrene oxide), oxidative cyclization catalysis (conversion of bis(2-hydroxy-1-naphthyl)methanes to the corresponding spirodienone), and a tandem catalytic processes: an in situ oxidation-cyclic aminal formation-oxidation sequence, which selectively converts benzyl alcohol to 2-phenyl-quinazolin-4(3H)-one. Notably, the catalyst is readily recoverable and reusable, with little loss in catalytic activity.
通过中四（五氟苯基）卟啉与刚性三角结构单元六羟基三亚苯的反应，以游离碱形式合成了一种新的基于卟啉的多孔有机聚合物（POP），其BET表面积在780至880 m²/g之间。然后用Fe(III)对该材料进行金属化处理，赋予其Lewis酸催化活性（环氧苯乙烯的区域选择性甲醇解开环反应）、氧化环化催化活性（双（2-羟基-1-萘基）甲烷转化为相应的螺二烯酮）以及串联催化过程：原位氧化-环缩醛形成-氧化序列，该序列可将苯甲醇选择性转化为2-苯基喹唑啉-4(3H)-酮。值得注意的是，该催化剂易于回收和重复使用，催化活性几乎没有损失。
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