scholarly journals Eosin Y dye-based porous organic polymers for highly efficient heterogeneous photocatalytic dehydrogenative coupling reaction

RSC Advances ◽  
2017 ◽  
Vol 7 (1) ◽  
pp. 408-414 ◽  
Author(s):  
Chang-An Wang ◽  
Yan-Wei Li ◽  
Xue-Li Cheng ◽  
Jian-Ping Zhang ◽  
Yin-Feng Han
Keyword(s):  
Coupling Reaction ◽  
Eosin Y ◽  
Organic Polymers ◽  
Porous Organic Polymers ◽  
Bottom Up ◽  
Highly Efficient ◽  
Dehydrogenative Coupling ◽  
Highly Effective

Eosin Y dye has been successfully embedded into a nanoporous network EY-POPs through a bottom-up strategy. The polymers could be used as highly effective and reusable heterogeneous organo-photocatalyst for the dehydrogenative coupling reaction.

Bipyridyl palladium embedded porous organic polymer as highly efficient and reusable heterogeneous catalyst for Suzuki–Miyaura coupling reaction

RSC Advances ◽  
2016 ◽  
Vol 6 (41) ◽  
pp. 34866-34871 ◽  
Author(s):  
Chang-An Wang ◽  
Yin-Feng Han ◽  
Yan-Wei Li ◽  
Kun Nie ◽  
Xue-Li Cheng ◽  
...  
Keyword(s):  
Heterogeneous Catalyst ◽  
Palladium Catalyst ◽  
Coupling Reaction ◽  
Organic Polymer ◽  
Organic Polymers ◽  
Porous Organic Polymers ◽  
Porous Organic Polymer ◽  
Highly Efficient ◽  
Highly Effective

Bipyridyl-palladium catalyst embedded porous organic polymers (Bpy-Pd-POP) was synthesized and used as highly effective and reusable heterogeneous catalyst for the Suzuki–Miyaura coupling reaction.

Porous organic polymers based on melamine and 5,5′-bis(bromomethyl)-2,2′-bipyridine: functionalization with lanthanide ions for chemical sensing and highly efficient adsorption of methyl orange

2018 ◽  
Vol 42 (24) ◽  
pp. 19734-19739 ◽  
Author(s):  
Gang Li ◽  
Huaifang Fang ◽  
Danyong Jiang ◽  
Guoli Zheng
Keyword(s):  
Methyl Orange ◽  
Chemical Sensing ◽  
Lanthanide Ions ◽  
Organic Polymers ◽  
Porous Organic Polymers ◽  
Highly Efficient

Microporous POP-1 displays extremely fast adsorption of MO dyes. Moreover, Eu3+@POP-1 for chemical sensing can be easily prepared by a postsynthetic method.

Uniform poly(phosphazene–triazine) porous microspheres for highly efficient iodine removal

2018 ◽  
Vol 54 (61) ◽  
pp. 8450-8453 ◽  
Author(s):  
Shaohui Xiong ◽  
Jian Tao ◽  
Yuanyuan Wang ◽  
Juntao Tang ◽  
Cheng Liu ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Organic Polymers ◽  
Porous Organic Polymers ◽  
Porous Microspheres ◽  
Highly Efficient ◽  
Iodine Adsorption

The iodine adsorption capacity of porous organic polymers is greatly enhanced due to the extended π-conjugated units on the backbone.

The “bottom-up” construction of chiral porous organic polymers for heterogeneous asymmetric organocatalysis: MacMillan catalyst built-in nanoporous organic frameworks

2017 ◽  
Vol 8 (36) ◽  
pp. 5561-5569 ◽  
Author(s):  
Chang-An Wang ◽  
Yan-Wei Li ◽  
Yin-Feng Han ◽  
Jian-Ping Zhang ◽  
Ren-Tao Wu ◽  
...  
Keyword(s):  
Alder Reaction ◽  
Diels Alder ◽  
Organic Polymers ◽  
Porous Organic Polymers ◽  
Bottom Up ◽  
Diels Alder Reaction ◽  
Asymmetric Organocatalysis

MacMillan catalyst-embedded chiral porous organic polymers were synthesized via bottom-up strategy and used as efficient and recyclable heterogeneous organocatalysts for the asymmetric Diels–Alder reaction.

Hypercrosslinked porous polycarbazoles via one-step oxidative coupling reaction and Friedel–Crafts alkylation

2015 ◽  
Vol 6 (13) ◽  
pp. 2478-2487 ◽  
Author(s):  
Long Pan ◽  
Qi Chen ◽  
Jian-Hua Zhu ◽  
Jia-Guo Yu ◽  
Yu-Jian He ◽  
...  
Keyword(s):  
Oxidative Coupling ◽  
Coupling Reaction ◽  
Organic Polymers ◽  
Porous Organic Polymers ◽  
Oxidative Coupling Reaction ◽  
One Step ◽  
Facile Preparation

Facile preparation of hypercrosslinked carbazole-based porous organic polymers via FeCl3-promoted one-step oxidative coupling reaction and Friedel–Crafts alkylation from the vinyl or hydroxymethyl functionalized carbazole is reported.

A visible light mediated, metal and oxidant free highly efficient cross dehydrogenative coupling (CDC) reaction between quinoxalin-2(1H)-ones and ethers

2019 ◽  
Vol 43 (19) ◽  
pp. 7403-7408 ◽  
Author(s):  
Kishor D. Mane ◽  
Rohit B. Kamble ◽  
Gurunath Suryavanshi
Keyword(s):  
Visible Light ◽  
Transfer Process ◽  
White Light ◽  
Hydrogen Abstraction ◽  
Cyclic Ethers ◽  
Eosin Y ◽  
Highly Efficient ◽  
Dehydrogenative Coupling ◽  
Reaction Proceeds

The white light mediated, 3C alkylation of quinoxalin-2(1H)-ones via a cross dehydrogenative coupling (CDC) reaction with cyclic ethers using eosin Y as a photocatalyst is described. The reaction proceeds via a hydrogen abstraction and transfer process.

Porous organic polymers as metal free heterogeneous organocatalysts

2021 ◽  
Author(s):  
Maarten Debruyne ◽  
Veronique Van Speybroeck ◽  
Pascal Van Der Voort ◽  
Christian V. Stevens
Keyword(s):  
Green Chemistry ◽  
Organic Polymers ◽  
Porous Organic Polymers ◽  
Metal Free ◽  
Highly Effective ◽  
Catalytic Applications

Efficient catalysis is essential from a green chemistry perspective. Porous organic polymers (POPs) have recently emerged as highly effective materials for catalytic applications. POPs possess controllable compositions and functionalities, high...

scholarly journals Pyrene-Based Fluorescent Porous Organic Polymers for Recognition and Detection of Pesticides

Molecules ◽  
2021 ◽  
Vol 27 (1) ◽  
pp. 126
Author(s):  
Zhuojun Yan ◽  
Jinni Liu ◽  
Congke Miao ◽  
Pinjie Su ◽  
Guiyue Zheng ◽  
...  
Keyword(s):  
Fluorescence Emission ◽  
Endocrine System ◽  
Coupling Reaction ◽  
High Sensitivity ◽  
Acute Poisoning ◽  
Detection Sensitivity ◽  
Organic Polymers ◽  
Porous Organic Polymers ◽  
Suzuki Coupling Reaction ◽  
Organic Pesticides

Eating vegetables with pesticide residues over a long period of time causes serious adverse effects on the human body, such as acute poisoning, chronic poisoning, and endocrine system interference. To achieve the goal of a healthy society, it is an urgent issue to find a simple and effective method to detect organic pesticides. In this work, two fluorescent porous organic polymers, LNU-45 and LNU-47 (abbreviation for Liaoning University), were prepared using π-conjugated dibromopyrene monomer and boronic acid compounds as building units through a Suzuki coupling reaction. Due to the large π-electron delocalization effect, the resulting polymers revealed enhanced fluorescence performance. Significantly, in sharp contrast with the planar π-conjugated polymer framework (LNU-47), the distorted conjugated structure (LNU-45) shows a higher specific surface area and provides a broad interface for analyte interaction, which is helpful to achieve rapid response and detection sensitivity. LNU-45 exhibits strong fluorescence emission at 469 nm after excitation at 365 nm in THF solution, providing strong evidence for its suitability as a luminescent chemosensor for organic pesticides. The fluorescence quenching coefficients of LNU-45 for trifluralin and dicloran were 5710 and 12,000 (LNU-47 sample by ca. 1.98 and 3.38 times), respectively. Therefore, LNU-45 serves as an effective “real-time” sensor for the detection of trifluralin and dicloran with high sensitivity and selectivity.

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