| 第 34 卷第 6 期 |  | Vol. 34 No. 6 | | 2004 年 12 月 | Dec 2004 |
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所屬欄目：其它
微波輻射和相轉移催化合成β-甲基-β-硝基對羥基苯乙烯 |
| 聶西度(湖南大學(xué)衡陽(yáng)分校; 湖南衡陽(yáng)) |
| 摘 要：在微波輻射和相轉移催化劑存在的條件下,利用Henry反應,快速合成β 甲基 β 硝基對羥基苯乙烯�？疾炝宋⒉ㄝ椛涔β�、微波輻射時(shí)間、不同種類(lèi)的相轉移催化劑、反應物的物料比等因素對反應收率的影響。結果表明:在微波輻射功率為195W、微波反應時(shí)間為5min,用PEG 800做相轉移催化劑,用量為對羥基苯甲醛的5%(mol),對羥基苯甲醛∶硝基乙烷量比為1∶2(mmol),在冰乙酸/醋酸銨條件下,收率達70.5%。 |
| 關(guān)鍵詞：微波輻射; 相轉移催化劑; β-甲基-β-硝基對羥基苯乙烯; 硝基乙烷 |
| 中圖分類(lèi)號：TQ241.2 文獻標識碼：A 文章編號：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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