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 Phenetole
103-73-1

Phenetole synthesis

15synthesis methods
Phenetole is produced from Phenol and Diethylsulfate in weak aqueous alkaline solution.
-

Yield:103-73-1 96.1%

Reaction Conditions:

with potassium carbonate in N,N-dimethyl-formamide;toluene at 40 - 50; for 2.25 h;Large scale;Time;

Steps:

1.1; 2.1 Step 1) Preparation of phenethyl ether

Phenol (14.1 g, 150 mmol) was dissolved in 300 ml DMF,Add 25g of potassium carbonate, at room temperature,Add dropwise a solution of bromoethane in toluene (15ml of bromoethane, 60ml of toluene),After 15 minutes of dripping, the dripping was completed, and the reaction was performed at 40-50 °C for 2 hours.After the reaction was finished, potassium bromide and potassium carbonate were removed by filtration, and the solvent was recovered under reduced pressure,The residue was added with 250ml of water, extracted with 250ml of ethyl acetate,Dry over anhydrous sodium sulfate, filter, and recover the solvent from the filtrate,The residue was distilled under reduced pressure to obtain 17.58 kg of a light-colored liquid with a yield of 96.1%.

References:

CN114315534,2022,A Location in patent:Paragraph 0016; 0034-0036; 0041-0043

Phenetole Related Search:

伊宁县| 兴业县| 增城市| 麻江县| 诸暨市| 疏附县| 同江市| 安宁市| 磴口县| 扶绥县| 汤原县| 昔阳县| 银川市| 科技| 盐城市| 新田县| 马尔康县| 台南市| 合水县| 太康县| 苗栗县| 建水县| 鹤峰县| 盘锦市| 天全县| 绿春县| 信阳市| 康保县| 临西县| 桃源县| 孝义市| 文昌市| 博客| 巴南区| 黄浦区| 洪江市| 西盟| 广昌县| 仲巴县| 苏尼特左旗| 德令哈市|