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-BROMO-2,5-DIFLUOROPHENOL
486424-36-6

4-BROMO-2,5-DIFLUOROPHENOL synthesis

2synthesis methods
2713-31-7 Synthesis
2,5-Difluorophenol

2713-31-7
242 suppliers
$5.00/1g

-

Yield:486424-36-6 81.05%

Reaction Conditions:

with bromine in chloroform at 0 - 20; for 3 h;

Steps:

86
Intermediate 117: 4-Bromo-2, 5-difluorophenolTo a 250 mL RB flask fitted with magnetic stirrer was charged with 100 mL of CHCI3. To the stirred solvent were added 2, 5-difluorophenol (5.0 g, 38.4 mmol), bromine (6.14 g, 38.4 mmol), at 0 °C and stirred at room temperature, for 3 h. The reaction mixture was quenched with sodium thio sulphate solution (20 mL) and extracted with ethyl acetate (15 mL X 2). The organic layer was washed with water (50 mL), followed by brine solution (20 mL). The organic layer was dried over anhydrous Na2S04 and the solvent was removed under reduced pressure to obtain product (6.5 g, yield: 81.05%).

References:

CONNEXIOS LIFE SCIENCES PVT. LTD.;RANGANATH RAO, Jagannath Madanahalli;ARUMUGAM, Nagarajan;ANSARI, Mohd Mudabbir;GUDLA, Chandrasekhar;PACHIYAPPAN, Shanmugam;RAMALINGAM, Manivannan;GEORGE, Jenson;ARUL, George Fernanda;BOMMEGOWDA, Y, Kenchegowda;ANGUPILLAI, Sathesh Kumar;KOTTAMALAI, Ramamoorthy;JIDUGU, Pradeep;RAO, D, Shivanageshwara WO2012/11125, 2012, A1 Location in patent:Page/Page column 154

FullText

4-BROMO-2,5-DIFLUOROPHENOL Related Search:

寿宁县| 依兰县| 托里县| 孟津县| 卢龙县| 敖汉旗| 个旧市| 璧山县| 盐城市| 麻阳| 荆州市| 阜平县| 伽师县| 云梦县| 顺平县| 聊城市| 汕尾市| 青川县| 桑日县| 旬阳县| 昌宁县| 开阳县| 永福县| 永州市| 虞城县| 梨树县| 鸡泽县| 长白| 宾川县| 即墨市| 射阳县| 罗源县| 佛教| 新龙县| 兴仁县| 莆田市| 甘肃省| 阳新县| 开远市| 徐水县| 萝北县|