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 METHYL (S)-2-(TERT-BUTOXYCARBONYLAMINO)-3-(4-IODOPHENYL)PROPANOATE
113850-76-3

METHYL (S)-2-(TERT-BUTOXYCARBONYLAMINO)-3-(4-IODOPHENYL)PROPANOATE synthesis

6synthesis methods
-

Yield:113850-76-3 92%

Reaction Conditions:

with phosphorous triiodide in acetonitrile at 0 - 10;Temperature;Solvent;

Steps:

5; 6 Example 5

Add compound III (150 g, 0.5 mol), 1000 mL of acetonitrile to the reaction flask, stir to dissolve, then add 120 mL of PI3 dropwise, control the temperature to be less than 0°C, after the dropwise addition, keep the reaction at 10°C, and monitor the reaction by TLC. After the reaction is over, add 1000 mL of saturated sodium bicarbonate solution, stir, stand for liquid separation, wash the organic layer once with 500 mL of water, dry with anhydrous sodium sulfate, filter, concentrate under reduced pressure, add petroleum ether to make a slurry, filter, and dry to obtain compound II (186.41g, 0.46mol), the yield is 92%, and the purity is 99.4%.

References:

CN112661671,2021,A Location in patent:Paragraph 0043-0044; 0046-0047

METHYL (S)-2-(TERT-BUTOXYCARBONYLAMINO)-3-(4-IODOPHENYL)PROPANOATE Related Search:

金寨县| 花莲县| 开化县| 九寨沟县| 定结县| 阜宁县| 文山县| 双鸭山市| 宣恩县| 内江市| 建阳市| 建瓯市| 行唐县| 清涧县| 沂源县| 井陉县| 伊川县| 和静县| 兴化市| 荔波县| 鄂伦春自治旗| 武汉市| 饶河县| 调兵山市| 广平县| 南澳县| 左贡县| 浦东新区| 星座| 林甸县| 政和县| 孟津县| 喀喇| 苏尼特右旗| 易门县| 沧州市| 海城市| 龙海市| 沛县| 海口市| 水富县|