Sodium Carbonate → {6-Chloro-3-methyl-4-[4-(4-trifluoromethoxy-phenylsulfamoyl)-phenyl]-naphthalen-2-yl}-acetic acid methyl ester

A stirred solution of (6-chloro-3-methyl-4-trifluoromethanesulfonyloxy-naphthalen-2-yl)-acetic acid methyl ester (0.10 g, 0.25 mmol) in dimethoxyethane (5 mL) was purged with argon for 5 minutes at room temperature. Triphenylphosphine (0.015 g, 0.055 mmol), palladium (II) acetate (0.006 g, 0.027 mmol), 4-(N-(4-(trifluoromethoxy)phenyl)sulfamoyl)phenyl-boronic acid (0.118 g, 0.33 mmol) and a 2 M aqueous solution of sodium carbonate (0.6 mL, 1.2 mmol) were added simultaneously to the reaction mixture at room temperature under argon. The reaction mixture was refluxed for 2 hours. The reaction was cooled to room temperature. Water was added and the mixture was extracted twice with ethyl acetate. The collected organic extracts were washed with water and then brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure to give the crude product, which was finally purified using flash chromatography (Biotage, 5-10% ethyl acetate-hexane) to {6-chloro-3-methyl-4-[4-(4-trifluoromethoxy-phenylsulfamoyl)-phenyl]-naphthalen-2-yl}-acetic acid methyl ester (0.032 g, 23%) as a solid. MS calcd. for C27H20ClF3NO5S [(M−H)−] 562, obsd. 562.3.

1. temperatureThe reaction mixture was refluxed for 2 hours
2. extractionthe mixture was extracted twice with ethyl acetate
3. washThe collected organic extracts were washed with water
4. dry with materialbrine, dried over anhydrous Na2SO4
5. concentrationconcentrated under reduced pressure

ORDレコード

ord-d7186e93312b425daf83c2e37dc4d89b

出典データセット

uspto-grants-2015_04

DOI

10.6084/m9.figshare.5104873.v1

特許番号

US09000044B2