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 O,O'-Dioctadecylpentaerythritol bis(phosphite)
3806-34-6

O,O'-Dioctadecylpentaerythritol bis(phosphite) synthesis

1synthesis methods
-

Yield:3806-34-6 98.2%

Reaction Conditions:

with lithium hydroxide;triethyl phosphite at 130 - 160; for 2 h;Temperature;Reagent/catalyst;Time;

Steps:

1; 2; 3.1; 3.2; 3.3 Example 2
In a 500mL four-necked flask equipped with electric stirring, thermometer, vacuum tube and condenser, add 34.1g (0.2mol) triethyl phosphite,13.6g (0.1mol) pentaerythritol, 50g (0.185mol) stearyl alcohol,1g lithium hydroxide, heated to 130°C, keep the reaction under these conditions for 1h,Slowly adjust the vacuum to keep it at -0.07MPa,The temperature was continued to rise to 160°C, and the reaction was maintained for 1 h under these conditions.The ethanol produced during the reaction was removed and filtered hot to obtain 71.98 g of the product, with a yield of 98.2%.

References:

Yingkou Fengguang New Materials Co., Ltd.;Wang Lei;Qi Tao;Jiang Yang;Zhang Yang CN111620905, 2020, A Location in patent:Paragraph 0020-0047

FullText

O,O'-Dioctadecylpentaerythritol bis(phosphite) Related Search:

高台县| 喀喇| 临沂市| 瓦房店市| 宁德市| 涡阳县| 西昌市| 奇台县| 渭源县| 二连浩特市| 洪泽县| 大石桥市| 涞源县| 安西县| 泸溪县| 宝应县| 黔东| 德保县| 凤冈县| 南汇区| 精河县| 舞钢市| 汕尾市| 灵石县| 工布江达县| 新野县| 庆城县| 乳山市| 上饶市| 公主岭市| 平陆县| 星子县| 三穗县| 曲沃县| 吉安市| 兴安县| 博客| 林口县| 班戈县| 综艺| 海城市|