Chinese Journal of Organic Chemistry >
Green Synthesis of α-Benzoin Oxime, and the Selective Control and Separation of Its Cis-Trans Isomers
Received date: 2012-11-07
Revised date: 2012-01-13
Online published: 2012-01-21
Supported by
Project supported by the National Natural Science Foundation of China (Nos. 51074096, 50734005), and the National Basic Research Program of China (No. 2012CBA01201).
A synthesis and isolation method for α-benzoin oxime was reported. With benzaldehyde as starting material and dicationic imidazolium salt as catalyst, α-benzoin as an important intermediate was synthesized through the mechanism of nitrogen heterocyclic carbine. This method is characterized by mild conditions, low cost, environment friendly and good yield. In the α-benzoin oximation reaction, adjusting the reaction temperature can get selective control of oxime structure for cis-trans isomers which were completely separated by column chromatography using gradient elution.
Key words: α-benzoin oxime; synthesis; cis-trans isomer; separation
Li Jing , Xu Shengming , Li Linyan , Wang Junlian . Green Synthesis of α-Benzoin Oxime, and the Selective Control and Separation of Its Cis-Trans Isomers[J]. Chinese Journal of Organic Chemistry, 2013 , 33(05) : 1022 -1025 . DOI: 10.6023/cjoc201211014
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