Sodium Carbonate → HCID 59496794, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of trifluoro-methanesulfonic acid 3-cyclopentanecarbonyl-5-hydroxy-phenyl ester (300 mg) in 1,2-dimethoxyethane (4 mL) were added 3,4-methylenedioxyphenylboronic acid (295 mg), 2 M aq. sodium carbonate solution (0.9 mL) and Pd(PPh3)4 (10 mg) and the resulting mixture was stirred at 90° C. for 3 h. Then the reaction mixture was diluted with ethyl acetate, filtered through Celite and washed with water and brine. The organic extract was dried over anhydrous sodium sulfate, concentrated and purified on a silica gel column using ethyl acetate and hexanes to yield 100 mg of the title compound (36% yield). HRMS calcd for C19H18O4 [M+H]+ 311.1278, observed 311.1277.

Provenance & Evidence