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 2-Amino-5-bromopyrimidine
7752-82-1

2-Amino-5-bromopyrimidine synthesis

3synthesis methods
The synthesis of 2-Amino-5-bromopyrimidine is as follows:The 2-aminopyrimidine (2.5g, 26.29mmol) was dissolved in acetonitrile (25mL) was added N- bromosuccinimide (4.6g, 27.9mmol) under ice-cooling, stirred in the dark overnight at room temperature. Recovery of the solvent under reduced pressure, washed with water (100 mL) was washed, filtered off with suction, and dried in vacuo to give a white solid. Yield: 97%.
synthesis of 8-hydroxyquinoline-N-oxide.png
-

Yield:7752-82-1 97%

Reaction Conditions:

with N-Bromosuccinimide in acetonitrile at 20;Cooling with ice;Darkness;

Steps:

7.2 Step 2. Synthesis of 5-bromo-2-aminopyrimidine (Intermediate 2-4)

The 2-aminopyrimidine (2.5g, 26.29mmol) was dissolved in acetonitrile (25mL) was added N- bromosuccinimide (4.6g, 27.9mmol) under ice-cooling, stirred in the dark overnight at room temperature. Recovery of the solvent under reduced pressure, washed with water (100 mL) was washed, filtered off with suction, and dried in vacuo to give a white solid. Yield: 97%

References:

CN106588884,2017,A Location in patent:Paragraph 0210; 0214; 0215; 0216

2-Amino-5-bromopyrimidine Related Search:

松溪县| 陆河县| 咸宁市| 桂林市| 白玉县| 沽源县| 德令哈市| 上犹县| 霍城县| 深水埗区| 呼和浩特市| 香港| 利辛县| 富锦市| 新田县| 桓台县| 庄河市| 玉林市| 青龙| 余干县| 海淀区| 泗洪县| 海阳市| 凌源市| 仲巴县| 台中市| 聂荣县| 临澧县| 新宁县| 江阴市| 五家渠市| 民县| 渑池县| 梅州市| 静乐县| 阳山县| 蓬莱市| 龙山县| 弥勒县| 大宁县| 湛江市|