第 48 卷第 6 期 |  | Vol. 48 No. 6 | 2018 年 12 月 | Dec 2018 |
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所屬欄目:功能材料
2,6-二氯環(huán)己酮的合成 |
朱周靜,陳革豫
(陜西國際商貿學(xué)院 醫藥學(xué)院,陜西 西安 712046) |
摘 要:以1-嗎啉基-1-環(huán)己烯(3)為原料,N-氯代酰二亞胺(NCS)為氯化劑,在二氯甲烷中室溫反應3 h制得1-嗎啉基-2,6-二氯環(huán)己烯(2),再以一水合對甲苯磺酸(TsOH·H2O)為有機酸試劑,在二氧六環(huán)中催化水解化合物2,制得2,6-二氯環(huán)己酮(1),終產(chǎn)物經(jīng)石油醚重結晶。優(yōu)化了反應條件:氯化反應中,n(NCS)∶n(3)= 2.4∶1.0,二氯甲烷作反應溶劑;水解反應中,n(TsOH·H2O)∶n(2)= 1.0∶1.0,石油醚作產(chǎn)物結晶溶劑。合成途徑簡(jiǎn)潔、條件溫和、產(chǎn)品質(zhì)量好,優(yōu)化條件下總收率68.0%。 |
關(guān)鍵詞:二氯環(huán)己酮;嗎啉;合成;優(yōu)化條件 |
中圖分類(lèi)號:TQ463 文獻標識碼:A 文章編號:1009-9212(2018)06-0046-03 |
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Synthseis of 2,6-Dichloro-cyclohexanone |
ZHU Zhou-jing, CHEN Ge-yu
(1. School of Pharmacy, Shanxi Institute of International Trade & Commerce, Xi'an 712046, China) |
Abstract:Using 1-morinidyl-1-cyclohexene(3) as the raw material and NCS as chlorination agent, 1-morinidyl -2,6-dichlorocyclohexene(2) was prepared at room temperature for 3 h in dichloromethane. Then, TsOHoH2O was used as organic acid reagent to catalyze hydrolysis compound 2 in dioxane. The related factors affecting product yield were investigated: In the chlorination reaction, n(NCS)∶n(3)=2.4∶1.0 using dichloromethane as the reaction solvent; in the hydrolytic reaction, n(TsOH·H2O)∶n(2)=1.0∶1.0, using petroleum ether as crystallizing solvent. This synthetic route is simple; the conditions are mild; the product quality is good; and the total yield under optimized conditions is 68.0%. |
Key words:dichloro-cyclohexanone; morpholinyl; synthseis; optimized condition |
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基金項目:陜西省自然科學(xué)基礎研究計劃(面上)項目(2018JM7046)。
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作者簡(jiǎn)介:朱周靜(1982-),女,陜西西安人,講師,碩士研究生,研究方向:藥物合成及工藝研究(E-mail:46930121@qq.com)。
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收稿日期:2018-11-12
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