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 Bis[4-fluorophenyl] sulfoxide
395-25-5

Bis[4-fluorophenyl] sulfoxide synthesis

6synthesis methods
-

Yield:4542-76-1 85%

Reaction Conditions:

with 1,3,5-trichloro-2,4,6-triazine;urea hydrogen peroxide adduct in acetonitrile at 20; for 1 h;

Steps:

General procedure for oxidation of sulfides into sulfoxides using urea-hydrogenperoxide adduct (UHP) and cyanuric chloride:

General procedure: To a solution of sulfide (1.0 mmol) and UHP (2.0 or 1.0 mmol according to the sulfide) in CH3CN (20 mL) wasadded cyanuric chloride (2.0 or 1.0 mmol according to the sulfide). The resulting solution was stirred until the sulfone was generated by TLC monitoring at room temperature and then quenched with H2O. The reaction mixture was extracted repeatedly with CH2Cl2. The organic layer was separated and concentrated in vacuo. The residue was subjected to flash column chromatography with hexanes/EtOAc (5:1 - 1:8) as eluent to afford the corresponding sulfoxide.

References:

Jeon, Heung Bae;Kim, Kyoung Tae;Kim, Sang Hyun [Tetrahedron Letters,2014,vol. 55,# 29,p. 3905 - 3908]

Bis[4-fluorophenyl] sulfoxide Related Search:

桃园县| 安溪县| 康马县| 高阳县| 襄垣县| 龙川县| 拜城县| 建瓯市| 翁源县| 吉木萨尔县| 鄂尔多斯市| 渭源县| 开化县| 福建省| 衡南县| 德格县| 子洲县| 财经| 交口县| 镶黄旗| 安吉县| 丽水市| 德州市| 车险| 兴隆县| 常宁市| 秭归县| 仁寿县| 大新县| 图片| 越西县| 宝应县| 白朗县| 葫芦岛市| 淳化县| 济宁市| 贺兰县| 扶余县| 遂宁市| 华坪县| 白银市|