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 4'-Hydroxyvalerophenone
2589-71-1

4'-Hydroxyvalerophenone synthesis

7synthesis methods
4'-Hydroxyvalerophenone is synthesized from phenol and valeryl chloride. It is a raw material intermediate for liquid crystals.
-

Yield:2589-71-1 98%

Reaction Conditions:

with trifluorormethanesulfonic acid at 0 - 20; for 1 h;regiospecific reaction;Friedel-Crafts acylation;

Steps:

4.3. General procedure of Friedel-Crafts acylation of phenols in TfOH

General procedure: Phenol (0.28 mmol) and acyl chloride (0.28 mmol) were dissolved in TfOH (3 ml) at 0 °C. The reaction mixture was warmed to room temperature for appropriate time in Table 2, then poured into cold water and ethyl acetate. The organic layer was washed with 1 M HCl, saturated NaHCO3, and saturated NaCl, and dried over MgSO4, then filtrated. The filtrate was concentrated and the residue was subjected silica column chromatography to afford acylated products. All spectral data were identical with the literatures.27

References:

Murashige, Ryo;Hayashi, Yuka;Ohmori, Syo;Torii, Ayuko;Aizu, Yoko;Muto, Yasuyuki;Murai, Yuta;Oda, Yuji;Hashimoto, Makoto [Tetrahedron,2011,vol. 67,# 3,p. 641 - 649] Location in patent:experimental part

4'-Hydroxyvalerophenone Related Search:

临沧市| 通山县| 婺源县| 阿瓦提县| 宁远县| 海丰县| 青岛市| 济阳县| 固安县| 罗平县| 邵阳县| 和政县| 武城县| 涞水县| 海晏县| 温州市| 莱阳市| 西平县| 镇江市| 宣城市| 余干县| 章丘市| 巢湖市| 新津县| 连山| 丘北县| 石棉县| 三穗县| 石楼县| 永定县| 阿坝县| 高州市| 惠安县| 乐清市| 赞皇县| 海宁市| 漾濞| 镇赉县| 玉山县| 扶余县| 科技|