A Green and Novel Method of Synthesizing 2,2'-Arylmethylene Bis(3-hydroxy-5,5-dimethylcyclohex-2-enone) Catalyzed by L-Histidine in Ionic Liquid |
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| Authors: | Zhang Yan Shang Zhicai |
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| Affiliation: | 1. Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China;2. Tel.: 0086‐0571‐8795237;3. Fax: 0086‐0571‐87951895 |
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| Abstract: | An efficient and green approach to the synthesis of 2,2′‐arylmethylene bis(3‐hydroxy‐5,5‐dimethylcyclohex‐2‐enone) using L‐histidine as the catalyst is described. In addition, room temperature ionic liquid 1‐butyl‐3‐methylimidazonium tetrafluoroborate [bmim]BF4 was used as green recyclable alternatives to volatile organic solvents for this condensation reaction. This green catalytic system can be recycled several times with no decreases in yields and reaction rates. |
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| Keywords: | condensation reaction ionic liquid L‐histidine synthesis xanthenedione |
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