Carbazolic Porous Organic Framework as an Efficient, Metal-Free Visible-Light Photocatalyst for Organic Synthesis

被引：233

作者：

Luo, Jian ^{[1
]}

Zhang, Xiang ^{[1
]}

Zhang, Jian ^{[1
]}

机构：

[1] Univ Nebraska, Dept Chem, Lincoln, NE 68588 USA

来源：

ACS CATALYSIS | 2015年 / 5卷 / 04期

关键词：

photocatalysis; carbazole; porous organic framework; metal-free; heterogeneous catalysis; CONJUGATED MICROPOROUS POLYMERS; PHOTOREDOX CATALYSIS; OXIDATIVE HYDROXYLATION; SELECTIVE OXIDATION; ARYLBORONIC ACIDS; SURFACE-AREA; GAS-STORAGE; DESIGN; REDUCTION; ALCOHOLS;

D O I：

10.1021/acscatal.5b00025

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report the visible-light-promoted photocatalytic activity of a highly porous carbazolic organic framework, Cz-POF-1, toward three prototypic organic transformations: net reductive dehalogenation of phenacyl bromide and its derivatives, net oxidative hydroxylation of arylboronic acids, and redox-neutral alpha-alkylation of aldehydes. We show that the extended p-conjugation in Cz-POF-1 enhances its visible light absorption, and the large porosity accelerates the reaction rate. For alpha-alkylation of aldehydes, Cz-POF-1 requires less strict reaction conditions and can be easily recovered and reused for up to 10 times. This work reveals a bright future for Cz-POFs as a new generation of metal-free photocatalysts for organic synthesis.

引用

页码：2250 / 2254

页数：5

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