成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
400-158-6606
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 2-(6-broMopyridin-2-yl)propan-2-ol
638218-78-7

2-(6-broMopyridin-2-yl)propan-2-ol synthesis

6synthesis methods
-

Yield: 100%

Reaction Conditions:

in diethyl ether at 20; for 0.5 h;Inert atmosphere;

Steps:

1.1 Step 1: Preparation of 2- (6-bromopyridin-2-yl) propan-2-ol (Int-1-b)
Dissolve methyl 6-bromopicolinate (Int-1-a) (5 g, 23.1 mmol) in diethyl ether (100 mL),Methyl magnesium iodide (17 mL, 50.8 mmol) was added under a nitrogen atmosphere, and the mixture was stirred at room temperature for 0.5 hours.Water and 2N hydrochloric acid were added to the reaction solution, and extracted three times with ethyl acetate.The organic layers were combined and washed successively with a saturated aqueous sodium hydrogen carbonate solution and a saturated saline solution.It was dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated to obtain the title compound (5 g, yield: 100%) in this step.

References:

Sichuan Kelun Botai Bio-pharmaceutical Co., Ltd.;Liu Jinming;He Ting;Cai Jiaqiang;Chen Qiangqiang;Kang Xiwei;Wang Lichun;Wang Jingyi CN110467615, 2019, A Location in patent:Paragraph 0176-0180

2-(6-broMopyridin-2-yl)propan-2-ol Related Search: