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 6-Acetoxy-4-chloro-7-methoxyquinazoline
230955-75-6

6-Acetoxy-4-chloro-7-methoxyquinazoline synthesis

14synthesis methods
-

Yield:230955-75-6 93.7%

Reaction Conditions:

with sulfuryl dichloride in acetonitrile at 55;Temperature;Concentration;

Steps:

1
1) exchange resin 12.8g in D301 macroporous weakly basic styrene anion, 6- (2-morpholino-ethoxy) -7-methoxy-3,4-dihydro-quinazolin-4 ketone (31.9g, 100mol), sulfuryl chloride (16.2g, 120mmol) in 100ml acetonitrile were contact reaction, the contact reaction temperature was 55 , after the reaction was quenched with ice-water, extracted with methylene chloride, concentrated under reduced pressure to give 6-acetoxy-4-chloro-7-methoxy-quinazoline of 31.7g, a yield of 93.7%, a purity of 99.05%.

References:

Chen, Hong;He, Baohong CN105541737, 2016, A Location in patent:Paragraph 0026; 0034

FullText

6-Acetoxy-4-chloro-7-methoxyquinazoline Related Search:

乌兰浩特市| 嘉义县| 遂平县| 钟祥市| 香港 | 涟水县| 庆阳市| 南平市| 巴马| 南昌县| 旬阳县| 赣榆县| 姜堰市| 定安县| 新河县| 鄂托克前旗| 碌曲县| 章丘市| 定陶县| 南平市| 图们市| 杭锦旗| 贡山| 汾西县| 巨鹿县| 台北市| 普兰县| 茂名市| 抚顺县| 永福县| 宝清县| 博爱县| 许昌县| 西贡区| 剑河县| 竹溪县| 类乌齐县| 岳池县| 桦甸市| 全州县| 桓仁|