337P日本大胆欧美裸体艺术_久久久久精品无码专区_一个人看的免费视频WWW中文字幕_欧美熟妇精品视频网免费观看
第 50 卷第 3 期Vol. 50 No. 3
2020 年 6 月Jun 2020

所屬欄目:功能材料

一種4-(4-羥基苯基)環(huán)己酮的合成方法
岳 剛,王麗亞,王志強,丁秋月,禹 凱,關(guān)登仕 (河北美星化工有限公司,河北 辛集 052360)
摘 要:以對溴苯酚、三甲基氯硅烷、三乙胺、鎂屑、1,4-環(huán)己二酮單乙二醇縮酮為底物,經(jīng)羥基保護、格氏試劑制備、格氏酮加成反應、脫水成烯、一步加氫脫保護合成酮制備4-(4-羥基苯基)環(huán)己酮。目標產(chǎn)物的收率為76.8%,其結構經(jīng)1H NMR確證。該路線(xiàn)未見(jiàn)文獻報道,且操作簡(jiǎn)單,收率高,對環(huán)境友好,適合工業(yè)化生產(chǎn)。
關(guān)鍵詞:羥基保護;格氏試劑;加氫還原;4-(4-羥基苯基)環(huán)己酮
中圖分類(lèi)號:O624  文獻標識碼:A  文章編號:1009-9212(2020)03-0065-04
Synthesis of 4-(4-Hydroxyphenyl) cyclohexanone
YUE Gang, WANG Li-ya, WANG Zhi-qiang, DING Qiu-yue, YU Kai, GUAN Deng-shi (Hebei Maison Chemical Co.,Ltd., Xinji 052360, China)
Abstract:4-(4-Hydroxyphenyl) cyclohexanone was prepared from p-bromophenol, trimethylchlorosilane, magnesium chips and 1,4-cyclohexanedione monoethylene glycol ketal through a series of reactions including hydroxyl protection, Grignard reagent preparation, Grignard ketone addition reaction, dehydration to alkene, and one-step hydro-deprotection to ketone. The structure of the target compound was characterized by 1H NMR. The yield of the target product was 76.8%. This route has the advantages of simple operation, high yield, environmental friendliness and is suitable for industrial production.
Key words:hydroxyl protection; Grignard reagent; hydrogenation reduction; 4-(4-hydroxyphenyl) cyclohexanone
作者簡(jiǎn)介:岳 剛(1973-),男,河北唐山人,主要從事液晶等顯示材料方面的研究(E-mail:maisonyue@126.com)。
收稿日期:2020-03-09
337P日本大胆欧美裸体艺术_久久久久精品无码专区_一个人看的免费视频WWW中文字幕_欧美熟妇精品视频网免费观看