氮杂环卡宾金（I）配合物作为乙烷选择性氧化制乙酸催化剂的前所未有的应用。
Unprecedented Use of NHC Gold (I) Complexes as Catalysts for the Selective Oxidation of Ethane to Acetic Acid.
作者信息
Ribeiro Ana P C, Matias Inês A S, Zargaran Poorya, Hashmi A Stephen K, Martins Luísa M D R S
机构信息
Centro de Química Estrutural and Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.
出版信息
Materials (Basel). 2021 Jul 31;14(15):4294. doi: 10.3390/ma14154294.
The highly efficient eco-friendly synthesis of acetic acid (40% yield) directly from ethane is achieved by the unprecedented use of N-heterocyclic carbene (NHC) and N-heterocyclic oxo-carbene (NHOC) gold(I) catalysts in mild conditions. This is a selective and promising protocol to generate directly acetic acid from ethane, in comparison with the two most used methods: (i) the three-step, capital- and energy-intensive process based on the high-temperature conversion of methane to acetic acid; (ii) the current industrial methanol carbonylation processes, based in iridium and expensive rhodium catalysts. Green metrics determinations highlight the environmental advantages of the new ethane oxidation procedure. Comparison with previous reported published catalysts is performed to highlight the features of this remarkable protocol.
通过在温和条件下前所未有的使用N-杂环卡宾（NHC）和N-杂环氧化卡宾（NHOC）金（I）催化剂，实现了直接从乙烷高效环保地合成乙酸（产率40%）。与两种最常用的方法相比，这是一种从乙烷直接生成乙酸的选择性且有前景的方案：（i）基于甲烷高温转化为乙酸的三步、资本和能源密集型工艺；（ii）目前基于铱和昂贵铑催化剂的工业甲醇羰基化工艺。绿色指标测定突出了新乙烷氧化工艺的环境优势。与先前报道的已发表催化剂进行比较，以突出这一卓越方案的特点。
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