| 第 34 卷第 6 期 |  | Vol. 34 No. 6 | | 2004 年 12 月 | Dec 2004 |
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所属栏目：其它
微波辐射和相转移催化合成β-甲基-β-硝基对羟基苯乙烯 |
| 聂西度(湖南大学衡阳分校; 湖南衡阳) |
| 摘 要：在微波辐射和相转移催化剂存在的条件下,利用Henry反应,快速合成β 甲基 β 硝基对羟基苯乙烯。考察了微波辐射功率、微波辐射时间、不同种类的相转移催化剂、反应物的物料比等因素对反应收率的影响。结果表明:在微波辐射功率为195W、微波反应时间为5min,用PEG 800做相转移催化剂,用量为对羟基苯甲醛的5%(mol),对羟基苯甲醛∶硝基乙烷量比为1∶2(mmol),在冰乙酸/醋酸铵条件下,收率达70.5%。 |
| 关键词：微波辐射; 相转移催化剂; β-甲基-β-硝基对羟基苯乙烯; 硝基乙烷 |
| 中图分类号：TQ241.2 文献标识码：A 文章编号：1009-9212(2004)06-0042-03 |
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| Synthesis of 4-Hydroxy-β-methyl-β-nitrostyrene under Microwave Irradiation by PTC |
| NIE Xi-du （ Hunan University Hengyang Branch; Hengyang 421101; China） |
| Abstract：4-hydroxy-β-methyl-β-nitrostyrene was synthesized under microwave irradiation by phase transfer catalyst(PTC) .The effects of different factors on the yield of product, such as the power of microwave irradiation ,the time of microwave irradiation , the choice of PTC reagent ,PTC reagent amount and the mole ratio of compounds , had been investigated . The optimal conditions were that PEG-800 was selected as a PTC, the PTC usage was 5% of the 4-hydroxybenzaldehyde mole amount, the power of irradiation was... |
| Key words：phase transfer catalyst; microwave irradiation; synthesis; 4-hydroxy-β-methyl-β-nitrostyrene; nitroethane |
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收稿日期：2004-07-26
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