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 Terephthaloyl chloride
100-20-9

Terephthaloyl chloride synthesis

14synthesis methods
Synthesis of terephthaloyl chloride by thionyl chloride method: terephthalic acid is mixed with thionyl chloride, refluxed at 80℃ for 10-12h, then the thionyl chloride is evaporated, and the resulting crude product is distilled under reduced pressure to obtain the finished product.
-

Yield:100-20-9 100%

Reaction Conditions:

with thionyl chloride for 2 h;Reflux;

Steps:

1

The first step is the formation of terephthaloyl chloride. 10 ml of thionyl chloride was placed in a 50 mL single-necked flask, 3.3 g (20 mmol) of terephthalic acid was added, and heated to reflux for 2 h;Distill off excess thionyl chloride,4.0 g of phthaloyl chloride, the yield is 100%, and stored under dry conditions for use;

References:

CN109705086,2019,A Location in patent:Paragraph 0053-0055

Terephthaloyl chloride Related Search:

法库县| 菏泽市| 卓资县| 长汀县| 盐边县| 永清县| 阳山县| 南郑县| 富锦市| 司法| 滕州市| 龙里县| 奈曼旗| 馆陶县| 吉水县| 大城县| 永昌县| 图木舒克市| 信阳市| 获嘉县| 如东县| 黔西| 昭苏县| 昌宁县| 宁陕县| 得荣县| 凉山| 西青区| 班玛县| 汤原县| 唐河县| 鄂尔多斯市| 遵化市| 将乐县| 两当县| 柯坪县| 平陆县| 手机| 禄劝| 陆河县| 滁州市|