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 3,4-Dimethoxybenzophenone
4038-14-6

3,4-Dimethoxybenzophenone synthesis

13synthesis methods
Obtained by reaction of benzoyl chloride with veratrole
in the presence of aluminium chloride in carbon disulfide (68%)
in the presence of zinc chloride.
-

Yield:4038-14-6 100%

Reaction Conditions:

with bismuth(lll) trifluoromethanesulfonate for 0.0833333 h;Ionic liquid;Microwave irradiation;Friedel-Crafts acylation;

Steps:



Typical procedure: Bi(OTf)3 (0.0328 g, 0.05 mmol), [BMI][PF6] (0.5 g), anisole (0.108 g, 1 mmol), and acetic anhydride (0.102 g, 1 mmol) were stirred at 80 °C for 30 min. After cooling, the reaction mixture was extracted by diethyl ether (2 × 40 mL). The ether layer was decanted, washed with water, aqueous NaHCO3, and brine, and dried over MgSO4. The solvent was then removed on a rotary evaporator. The residue was purified by flash chromatography (n-hexane/ethyl acetate = 9:1) to give 4-methoxyacetophenone (0.120 g, 80% yield).

References:

Tran, Phuong Hoang;Duus, Fritz;Le, Thach Ngoc [Tetrahedron Letters,2012,vol. 53,# 2,p. 222 - 224] Location in patent:experimental part

3,4-Dimethoxybenzophenone Related Search:

丹巴县| 九龙坡区| 江门市| 容城县| 旬阳县| 印江| 曲靖市| 重庆市| 肃北| 伊宁市| 兴仁县| 蒙山县| 普兰县| 普陀区| 隆子县| 中阳县| 闽侯县| 苏州市| 肃南| 富阳市| 锦屏县| 鄂温| 德昌县| 汉源县| 顺义区| 上栗县| 安吉县| 桓仁| 睢宁县| 黑山县| 常熟市| 家居| 鄂尔多斯市| 林甸县| 太仆寺旗| 光泽县| 龙山县| 沂源县| 禄劝| 澄迈县| 溧阳市|