Cobalt oxide-carbon nanocatalysts with highly enhanced catalytic performance for the green synthesis of nitrogen heterocycles through the Friedlander condensation

Godino-Ojer Marina; Lopez-Peinado Antonio J.; Maldonado-Hodar Francisco J.; Bailon-Garcia Esther; Perez-Mayoral Elena

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Cobalt oxide-carbon nanocatalysts with highly enhanced catalytic performance for the green synthesis of nitrogen heterocycles through the Friedlander condensation

机译：氧化钴 - 碳纳米催化剂具有高度增强的催化性能，用于通过弗里兰德缩合的氮杂环的绿色合成

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A novel series of eco-sustainable catalysts developed by supporting CoO nanoparticles on different carbon supports, highly efficient in the synthesis of quinolines and naphthyridines, through the Friedlander condensation, are reported for the first time. Textural properties, dispersion and location of the Co-phase are influenced by the nature of the carbon support, Co-precursor salt and metal loading, having a significant impact on the catalytic performance. Thus, the presence of the mesopores and macropores in carbon aerogels together with the homogeneous distribution of the active phase favours the formation of product 3a as a function of the metal loading. However, an increase in the metal content when using CNTs indicates the formation of CoO aggregates and an optimal concentration of 3 wt% CoO was observed, providing the highest conversion values. The carbon-based catalysts herein reported can be considered to be a sustainable alternative having advantages such as easy preparation, superior stability and notably enhanced catalytic performance, operating at lower temperature and under solvent-free conditions.

机译：首次报道了通过支持不同碳载体上的COO纳米粒子的COO纳米粒子而开发的一种新型的生态可持续催化剂，通过弗里德兰德缩合，在喹啉和萘啶的合成中高效。共相的纹理性质，分散和位置受碳载体，共前体盐和金属负载性质的影响，对催化性能产生显着影响。因此，碳气孔中的中孔和大孔的存在与活性相的均匀分布有利于作为金属负载的函数的产物3a的形成。然而，使用CNT时的金属含量增加表明在形成COO聚集体的形成，并且观察到3wt％的COO的最佳浓度，提供最高的转换值。本文报道的碳基催化剂可以被认为是可持续的替代方案，其具有易于制备，优异的稳定性和显着增强催化性能，在较低温度和无溶剂条件下操作。

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《Dalton transactions: An international journal of inorganic chemistry》 |2019年第17期|共12页
作者
Godino-Ojer Marina; Lopez-Peinado Antonio J.; Maldonado-Hodar Francisco J.; Bailon-Garcia Esther; Perez-Mayoral Elena;
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作者单位

UNED Dept Quim Inorgan &

Quim Tecn Fac Ciencias Paseo Senda Rey 9 Madrid 28040 Spain;

UNED Dept Quim Inorgan &

Quim Tecn Fac Ciencias Paseo Senda Rey 9 Madrid 28040 Spain;

Univ Granada UGR Dept Quim Inorgan Fac Ciencias E-18071 Granada Spain;

Univ Granada UGR Dept Quim Inorgan Fac Ciencias E-18071 Granada Spain;

UNED Dept Quim Inorgan &

Quim Tecn Fac Ciencias Paseo Senda Rey 9 Madrid 28040 Spain;

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正文语种 eng
中图分类化学;无机化学;
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2. 还原氧化石墨烯负载氧化钴杂化纳米催化剂的合成及其对一氧化碳氧化的催化性能 [J] . 王燕, 陈泽华, 黄静, 中国有色金属学报（英文版） . 2018,第011期
3. Cobalt oxide-carbon nanocatalysts with highly enhanced catalytic performance for the green synthesis of nitrogen heterocycles through the Friedlander condensation [J] . Godino-Ojer Marina, Lopez-Peinado Antonio J., Maldonado-Hodar Francisco J., Dalton transactions: An international journal of inorganic chemistry . 2019,第17期

机译：氧化钴 - 碳纳米催化剂具有高度增强的催化性能，用于通过弗里兰德缩合的氮杂环的绿色合成
4. Green approach for in-situ growth of highly-ordered 3D flower-like CuS hollow nanospheres decorated on nitrogen and sulfur co-doped graphene bionanocomposite with enhanced peroxidase-like catalytic activity performance for colorimetric biosensing of glucose [J] . Farzin Nekouei, Shahram Nekouei, Omid Jashnsaz, Materials science & engineering . 2018,第SEPa期

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6. Microwave-Accelerated Carbon-Nitrogen Bond Formation: A Green Chemical Approach for the Synthesis of Amines and Heterocycles in Aqueous Media [C] . 7th International Symposium on Green Chemistry in China(7th ISGCC'2005) . 2005

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8. Catalytic Aerobic Dehydrogenation of Nitrogen Heterocycles Using Heterogeneous Cobalt Oxide Supported on Nitrogen-Doped Carbon [O] . Andrei V. Iosub, Shannon S. Stahl -1

机译：氮掺杂碳负载的钴氧化物催化氮杂环的好氧脱氢
9. Cobalt oxide–carbon nanocatalysts with highly enhanced catalytic performance for the green synthesis of nitrogen heterocycles through the Friedländer condensation [O] . Marina Godino-Ojer, Antonio J. López-Peinado, Francisco J. Maldonado-Hódar, 2019

机译：通过Friedländer冷凝的氮杂环的绿色合成具有高度增强的氧化碳纳米催化剂，具有高度增强的催化性能

Cobalt oxide-carbon nanocatalysts with highly enhanced catalytic performance for the green synthesis of nitrogen heterocycles through the Friedlander condensation

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