天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片

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 [(difluoromethyl)thio]benzene
1535-67-7

[(difluoromethyl)thio]benzene synthesis

13synthesis methods
-

Yield: 80%

Reaction Conditions:

with N-benzyl-N,N,N-triethylammonium chloride in water at 60; for 12 h;

Steps:

1
330 g of a 40% aqueous solution of sodium thiophenolate, adding 0.3 g of benzyltriethylammonium chloride, and heating to 60 degrees, after stabilization,The reaction of chlorodifluoromethane was started, the absorption was very fast, the exotherm was obvious, and after 12 hours of reaction,Sampling analysis determined that the conversion of thiophenol was complete.After cooling, the lower liquid product is separated, washed with water, washed with saturated brine, dried and rectified to obtain 128 g, the yield is 80%, and the purity is over 98%.

References:

Beijing Aidewang Science And Technology Co., Ltd.;Zhou Weihua CN108341759, 2018, A Location in patent:Paragraph 0024