第 48 卷第 1 期 |  | Vol. 48 No. 1 | 2018 年 2 月 | Feb 2018 |
|
所屬欄目:農藥及中間體
吡唑醚菌酯中間體1-(4-氯苯基)-3-吡唑醇的合成 |
張慶偉,殷亞雷,米 俊,李 巍
(天津市嘉涵化工科技有限公司,天津 300384) |
摘 要:以對氯苯肼鹽酸鹽為原料,甲醇鈉作堿,與丙烯酰胺在甲苯中反應得到中間體1-(4-氯苯基)-3-吡唑酮,然后與雙氧水反應得1-(4-氯苯基)-3-吡唑醇,總收率84%。該方法成本低、操作簡(jiǎn)便,適合工業(yè)化生產(chǎn)。 |
關(guān)鍵詞:吡唑醚菌酯;對氯苯肼鹽酸鹽;1-(4-氯苯基)-3-吡唑醇 |
中圖分類(lèi)號:S482.2 文獻標識碼:A 文章編號:1009-9212(2018)02-0028-03 |
|
Preparation of 1-(4-Chlorophenyl) -3-hydroxypyrazole |
ZHANG Qing-wei,YIN Ya-lei, MI Jun,LI Wei
(Tianjin Jiahan Chemical Co., Ltd., Tianjin 300384,China) |
Abstract:4-Chlorophenyl hydrazine hydrochloride as starting material reacted with acrylamide in toluene to obtain 1-(4-chlorophenyl) pyrazole -3-one using sodium methoxide as base catalyst; then reacted with hydrogen peroxide to obtain 1-(4-chlorophenyl)-3-hydroxypyrazole. A total yield of 84% was achieved. This route was of low cost, easy to operate, suitable for industrial manufacture. |
Key words:pyraclostrobin; 4-chlorophenyl hydrazine hydrochloride; 1-(4-chlorophenyl)-3-hydroxypyrazole |
|
作者簡(jiǎn)介:張慶偉(1977-),男,河北唐山人,研究方向:農藥及中間體、電子化學(xué)品(E-mail:zhangqingweiw@163.com)。
|
收稿日期:2018-01-23
|
|