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 4-bromobenzoate
619-42-1

Methyl 4-bromobenzoate synthesis

14synthesis methods
To a 25 mL reaction flask were sequentially added magnets, 1 mmol 1-bromo-4-(methoxymethyl)benzene (214 mg), 15 mg20 mol% AgI/BiVO4 composite and 2 mL of water, equipped with a 28 cm diameter oxygen sphere, and a 16 W white light lamp 10 cm to the right
-

Yield:619-42-1 99%

Reaction Conditions:

with 1,3-dichloro-5,5-dimethylhydantoin at 60; for 7 h;

Steps:

3 Example 3: Preparation of methyl 4-bromobenzoate

Add 10 mmol 4-bromobenzoic acid, 100 mmol methanol, and 1.5 mmol dichlorohydantoin into a 50 mL three-necked flask, set up a reflux device, and stir and react at 60°C for 7 hours.After the methanol was recovered by rotary evaporation, it was transferred to a separatory funnel, and 20 mL of ethyl acetate was added, washed with 5% sodium carbonate solution, washed with water, dried with anhydrous sodium sulfate, and the solvent was removed under reduced pressure to obtain methyl 4-bromobenzoate. Yield 99%,

References:

CN113248373,2021,A Location in patent:Paragraph 0019; 0033-0034

Methyl 4-bromobenzoate Related Search:

德令哈市| 梧州市| 毕节市| 常熟市| 安庆市| 集安市| 营口市| 衡东县| 浠水县| 岱山县| 介休市| 特克斯县| 监利县| 平乐县| 灵石县| 于田县| 昌邑市| 夏津县| 噶尔县| 沂南县| 门头沟区| 兴海县| 桃源县| 伊吾县| 徐闻县| 深泽县| 台前县| 宜城市| 大英县| 阿图什市| 鄄城县| 江安县| 嘉祥县| 汉中市| 阿荣旗| 洪泽县| 阿拉善左旗| 盘山县| 如东县| 大同市| 治县。|