一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
010-86108875
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook CAS DataBase List Antioxidant 1076
2082-79-3

Antioxidant 1076 synthesis

5synthesis methods
-

Yield:2082-79-3 99.1%

Reaction Conditions:

with sodium montmorillonite in methanol at 110 - 120; under 15001.5 - 22502.3 Torr; for 7 h;Inert atmosphere;Reagent/catalyst;

Steps:

4

584 g of methyl β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, 541 g octadecanol, 0.58gSodium montmorillonite, 100 ml of methanol was added to the flask with mechanical stirring, Thermometer socket,In a 2000 ml four-necked flask equipped with a stirrer,Heating the material with a heating jacket,And stirring is started,Temperature reached 110-120 ,Filled with nitrogen, So that the reaction system pressure control in 2-3MPa, 7h after the end of the reaction,Cooled to 20 ° C,filter,drying, octadecanol β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate.

References:

CN106278880,2017,A Location in patent:Paragraph 0017-0028

Antioxidant 1076 Related Search:

湾仔区| 仁布县| 杭州市| 泗水县| 兴业县| 高青县| 红安县| 竹北市| 河池市| 宜川县| 天长市| 沙雅县| 六枝特区| 合川市| 平阴县| 育儿| 体育| 福贡县| 工布江达县| 浦县| 民乐县| 通化市| 蒙自县| 玛沁县| 黔东| 广宗县| 榆社县| 三门峡市| 石渠县| 郴州市| 汾阳市| 内乡县| 武川县| 张家港市| 霍林郭勒市| 临高县| 延边| 萍乡市| 商南县| 红桥区| 丰台区|