کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
50049 | 46778 | 2015 | 6 صفحه PDF | دانلود رایگان |
• ε-Caprolactam was synthesized directly from cyclohexanol via a tandem process.
• [n-C16H33N(CH3)3]H2PW12O40 shows high catalytic performance.
• A ε-caprolactam yield of 73.9% was obtained with a cyclohexanol conversion of 97.1%.
• [n-C16H33N(CH3)3]H2PW12O40 can be easily recycled without loss of activity.
ε-Caprolactam was synthesized directly from cyclohexanol via a tandem catalytic process using [n-C16H33N(CH3)3]H2PW12O40 as a catalyst. The highly efficient performance of the catalysts is due to the phase-transfer function of cation, improved coordination with peroxotungsten during oxidation and stabilization function of heteropoly anion on the intermediate formed during Beckmann rearrangement. A ε-caprolactam yield of 73.9% was obtained with a cyclohexanol conversion of 97.1% under optimized conditions.
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Journal: Catalysis Communications - Volume 70, 5 October 2015, Pages 6–11