午夜插插,噜噜噜影院,啪啪伊人网,欧美熟夫,景甜吻戏视频,男人强操性感蕾丝美女视频在线网站,日本美女跳舞视频

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 Aminodiphenylmethane hydrochloride
5267-34-5

Aminodiphenylmethane hydrochloride synthesis

9synthesis methods
-

Yield: 80.3%

Reaction Conditions:

with hydrogenchloride;pyrographite in ethanol;water for 1.5 h;Reflux;

Steps:

6 Example 6 Preparation of benzhydrylamine hydrochloride (III)
The above prepared intermediate (II) 120g, activated carbon 12g, 360ml of absolute ethanol, reflux decolorization, activated carbon and silica were removed by filtration, the filtrate was added concentrated hydrochloric acid 110g, refluxed for 1.5 hours, the reaction was complete. Cooling, crystallization, filtration, washing, drying product 95.3g, yield 80.3%, HPLC purity: 99.93%.

References:

Weihai Disu Pharmaceutical Co., Ltd.;Disha Pharmaceutical Group Co., Ltd.;Wu Ronggui;Men Lianbin;Cui Yangyang;Xu Keling;Xue Fuzhao CN107089918, 2017, A Location in patent:Paragraph 0022

Aminodiphenylmethane hydrochloride Related Search: