| 第 44 卷第 5 期 |  | Vol. 44 No. 5 | | 2014 年 10 月 | Oct 2014 |
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所屬欄目：香精香料
相轉移催化制備甘油縮醛香料 |
| 宋 如
（河西學(xué)院 化學(xué)化工學(xué)院 西部資源環(huán)境化學(xué)重點(diǎn)實(shí)驗室，甘肅 張掖 734000） |
| 摘 要：以苯甲醛和甘油為原料，環(huán)己烷為帶水劑，芐基三乙基氯化銨相轉移催化劑催化，制備了苯甲醛甘油縮醛香料�？疾炝舜呋瘎┯昧�、反應時(shí)間、反應物配比及帶水劑用量對產(chǎn)品收率的影響，優(yōu)化反應條件為：催化劑用量 3%、環(huán)己烷 8 mL 、醇醛物質(zhì)的量之比 1.3∶1，反應時(shí)間為 3 h。優(yōu)化條件下產(chǎn)物的收率達 90.3%。。 |
| 關(guān)鍵詞：相轉移催化；甘油；苯甲醛；縮合反應；縮醛 |
| 中圖分類(lèi)號：TQ225.43 文獻標識碼：A 文章編號：1009-9212（2014）05-0065-05 |
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| Preparation of Glycerol Acetal by Phase Transfer Catalysis |
| SONG Ru
(College of Chemistry and Chemical Engineering, Key Laboratory of Resources and Environmental Chemistry of West China, Hexi University, Zhangye 734000, China) |
| Abstract：In order to solve the problems of aldehydes perfume which are more volatile and unstable, benzaldehyde glycerol acetal was synthesized from benzaldehyde and glycerol. In the process cyclohexane was used as the water carrying agent and benzyl triethyl ammonium chloride as the phase transfer catalyst. The effects of the reaction time, the molar ratio of reactants and the loading of catalyst on the yield of acetals were investigated. The optimum reaction conditions were as follows: the molar ratio of glycerol to phenylaldehyde was 1.3:1, the mount of catalyst was 3%(m/m), the amount of cyclohexane was 8 mL and reaction time was 3 h. The reaction yield could reach 90.3% under the optimal reaction conditions. |
| Key words：phase transfer catalysis; glycerol; benzaldehyde; condensation; acetal |
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作者簡(jiǎn)介： 宋如（1979-），男，河南許昌人，講師，碩士研究生，研究方向：精細化學(xué)品的合成與應用（E-mail：njut_songru@126.com）。
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收稿日期： 2014-09-2
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