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 4-Chlorobenzenesulfonamide
98-64-6

4-Chlorobenzenesulfonamide synthesis

11synthesis methods
-

Yield:98-64-6 91.3%

Reaction Conditions:

with ammonium hydroxide in dichloromethane at 0 - 20; for 2 h;

Steps:

1.e Step e 4 - chlorobenzene preparation of sulfonamides

The chlorobenzene sulfonyl chloride (10 g, 1 eq) dissolved in 50 ml dichloromethane in, temperature control 0 °C following, slowly adding 40 ml (6 V) ammonia water, then completing the reaction at room temperature 2 h, precipitated solid. Filtered, washing the filter cake to the neutral, to obtain white solid 8.1 g

References:

CN104496896,2017,B Location in patent:Paragraph 0097; 0098

4-Chlorobenzenesulfonamide Related Search: