Adding a certain compound to certain chemical reactions, such as: 210532-25-5, name is 3,5-Difluorobenzene-1-sulfonyl chloride, belongs to chlorides-buliding-blocks compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 210532-25-5, SDS of cas: 210532-25-5
To a stirred solution of (2S)-3-(4-{2-[(lalpha,5alpha,6alpha)-(3-azabicyclo[3.L0]hex-6-yl)-tert- butoxy-carbonylamino]ethoxy}phenyl)-2-(4-tert-butylplienoxy)propionic acid ethyl ester (Intermediate 12; 0.6 g, 1.06 mmol) in dry dichloromethane (20 ml) was added a solution of 3,5-difluorobenzenesulfonyl chloride (0.225 g, 0.14 ml, 1.06 mmol) in dichloromethane (5 ml), and triethylamine (0.32 g, 0.45 ml, 3.18 mmol) at 0 0C. The reaction mixture was allowed to come at room temperature and stirred for 1.5 h. Reaction mixture was washed with water (2×20 ml), dried over anhydrous Na2SO4, filtered and concentrated under reduced . pressure to get a crude product, which was purified by column chromatography over silica gel (100-200 mesh) using 1.0-M.5% methanol-dichloromethane as an eluent to yield the title compound (0.609 g, 77%). MS: mlz 743 (M+l)1HNMR (CDCl3, 400MHz): delta 1.20-1.25 (m, 12H)5 1.44 (s, 9H), 1.84 (s, 2H), 3.15 (s, IH), 3.15-3.17 (m, 4H), 3.53-3.62 (m, 4H), 4.01 (t, J= 4.8 Hz, 2H), 4.16-4.22 (m, 2H), 4.67-4,70 (m, IH), 6.77 (d, J= 8.8 Hz, 4H), 6.99-7.03 (m, IH), 7.20-7.26 (m, 4H), 7.31-7.33. (m, 2H).
In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 3,5-Difluorobenzene-1-sulfonyl chloride, other downstream synthetic routes, hurry up and to see.
Reference:
Patent; LUPIN LIMITED; WO2008/10238; (2008); A2;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics