6781-42-6Relevant articles and documents
Preparation method 1,3 - diacyl benzene
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Paragraph 0046; 0048; 0055-0058; 0062-0075, (2021/08/25)
The preparation method of 1-3 - diacyl benzene comprises the following steps: reacting m-phthalic aldehyde with an alkyl magnesium halide to form an intermediate as shown II. The intermediate shown in Formula II is subjected to an oxidation reaction under the action of an oxidant to generate III, 1 diacyl benzene as shown 3 . In-flight R1 . R2 Alkyl groups from the alkyl magnesium halides, respectively. The method has the advantages of simple process, safety, environmental protection, high target product yield, high purity and the like, and can realize large-scale industrial production.
Selective electrochemical oxidation of aromatic hydrocarbons and preparation of mono/multi-carbonyl compounds
Li, Zhibin,Zhang, Yan,Li, Kuiliang,Zhou, Zhenghong,Zha, Zhenggen,Wang, Zhiyong
, p. 2134 - 2141 (2021/09/29)
A selective electrochemical oxidation was developed under mild condition. Various mono-carbonyl and multi-carbonyl compounds can be prepared from different aromatic hydrocarbons with moderate to excellent yield and selectivity by virtue of this electrochemical oxidation. The produced carbonyl compounds can be further transformed into α-ketoamides, homoallylic alcohols and oximes in a one-pot reaction. In particular, a series of α-ketoamides were prepared in a one-pot continuous electrolysis. Mechanistic studies showed that 2,2,2-trifluoroethan-1-ol (TFE) can interact with catalyst species and generate the corresponding hydrogen-bonding complex to enhance the electrochemical oxidation performance. [Figure not available: see fulltext.]
Method for removing acyl group in diazo of aryl diazonium salt
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Paragraph 0052; 0074-0076; 0088, (2019/02/13)
The invention provides a method for removing an acyl group in diazo of an aryl diazonium salt. The method is characterized in that the aryl diazonium salt and its derivative and an ortho-dicarbonyl compound undergo an illumination reaction to obtain a corresponding arylacyl product. The method has the advantages of high yield of the product, no metal involvement, and simple process.