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 Ethyl 8-bromooctanoate
29823-21-0

Ethyl 8-bromooctanoate synthesis

6synthesis methods
The synthesis method of ethyl 8-bromooctanoate: 1, 6-dibromohexane initial raw material is firstly used for carrying out substitution reaction with diethyl malonate to generate 2- (6-bromohexyl) diethyl malonate, and then ester hydrolysis and decarboxylation reaction are carried out to obtain the 8-bromooctanoic acid; and finally, esterification reaction is carried out to generate the compound 8-bromoethyl octanoate.synthesis of ethyl 8-bromooctanoate
-

Yield:29823-21-0 98%

Reaction Conditions:

with sulfuric acid for 3 h;Heating / reflux;

Steps:

21 Example 21; 8-Bromooctoanate (26)

To a solution of 8-bromooctanoic acid (5.0 g, 22 mmol) in ethanol (100 ML) was added H2SO4 (0.36 ML, 7.5 mmol) and the reaction was heated to reflux with stirring for 3 h.The crude reaction mixture was cooled to room temperature and washed H2O (100 ML), sat. NaHCO3 (2*100 ML), H2O (100 ML), dried MgSO4, and evaporated to dryness to afford a clear oil (5.5 g, 98% yield).

References:

US2003/228275,2003,A1 Location in patent:Page 42

Ethyl 8-bromooctanoate Related Search:

岗巴县| 保定市| 黄浦区| 桂阳县| 温宿县| 紫云| 凤冈县| 毕节市| 千阳县| 武胜县| 确山县| 涞水县| 璧山县| 嘉荫县| 海宁市| 乌鲁木齐县| 黄大仙区| 莎车县| 龙州县| 舒兰市| 海原县| 新田县| 容城县| 平乐县| 中超| 平江县| 新晃| 新野县| 积石山| 濮阳县| 类乌齐县| 遂昌县| 潮州市| 进贤县| 万宁市| 宕昌县| 株洲县| 汉源县| 凤城市| 淳安县| 枣庄市|