以醇为烷化剂，将支撑镍纳米颗粒作为 9H-Fluorene 直接 sp3 C-H 烷基化反应的催化剂。

IF 3.5 3区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY Chemistry - An Asian Journal Pub Date : 2024-10-14 DOI:10.1002/asia.202400989

Vageesh M, Harsh Joshi, Anupriya A S, Raju Dey

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引用次数: 0

摘要

在此，我们报告了一种廉价的第一排过渡金属镍异相催化体系，该体系通过借氢策略，使用醇类作为烷化剂对芴进行 Csp3-单烷基化反应。该催化方案具有多功能性，可使用各种类型的伯醇（包括芳基/异芳基甲醇）和脂肪醇作为烷化剂，获得高产率的所需产物。催化剂 Ni NPs@N-C 是以 ZIF-8 为牺牲模板，通过高温热解策略合成的。通过 XPS、HR-TEM、HAADF-STEM、XRD 和 ICP-MS 对 Ni NPs@N-C 催化剂进行了表征。该催化剂即使在室温的空气中也能保持稳定，显示出优异的活性，并且可以循环使用 5 次而不会明显降低其活性。

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Supported Nickel Nanoparticles as Catalyst in Direct sp³ C-H Alkylation of 9H-Fluorene Using Alcohols as Alkylating Agent.

Herein, we report an inexpensive first-row transition metal Ni heterogeneous catalytic system for the C_sp ³-mono alkylation of fluorene using alcohols as alkylating agents via borrowing hydrogen strategy. The catalytic protocol displayed versatility with high yields of the desired products using various types of primary alcohols, including aryl/hetero aryl methanols, and aliphatic alcohols as alkylating agents. The catalyst Ni NPs@N-C was synthesized via high-temperature pyrolysis strategy, using ZIF-8 as the sacrificial template. The Ni NPs@N-C catalyst was characterized by XPS, HR-TEM, HAADF-STEM, XRD and ICP-MS. The catalyst is stable even in the air at room temperature, displayed excellent activity and could be recycled 5 times without appreciable loss of its activity.

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来源期刊

Chemistry - An Asian Journal 化学-化学综合

CiteScore

7.00

自引率

2.40%

发文量

535

审稿时长

1.3 months

期刊介绍： Chemistry—An Asian Journal is an international high-impact journal for chemistry in its broadest sense. The journal covers all aspects of chemistry from biochemistry through organic and inorganic chemistry to physical chemistry, including interdisciplinary topics. Chemistry—An Asian Journal publishes Full Papers, Communications, and Focus Reviews. A professional editorial team headed by Dr. Theresa Kueckmann and an Editorial Board (headed by Professor Susumu Kitagawa) ensure the highest quality of the peer-review process, the contents and the production of the journal. Chemistry—An Asian Journal is published on behalf of the Asian Chemical Editorial Society (ACES), an association of numerous Asian chemical societies, and supported by the Gesellschaft Deutscher Chemiker (GDCh, German Chemical Society), ChemPubSoc Europe, and the Federation of Asian Chemical Societies (FACS).