Water → 7-Benzyloxy-6-cyano-4-(3-fluoro-4-nitrophenoxy)quinoline

Participants

Reaction Conditions

Reaction Steps

The 7-benzyloxy-4-chloro-6-cyanoquinoline (8.82 g, 30.0 mmol) described in WO98/13350 was suspended in 1-methylpyrrolidone (30 ml), and then 3-fluoro-4-nitrophenol (5.18 g, 33.0 mmol) and N,N-diisopropylethylamine (3.88 g, 30.0 mmol) were added and the mixture was heated and stirred at 110° C. for 4 hours. After returning the reaction system to room temperature, water was added and a solid precipitated. The obtained solid was filtered out, washed with water, methanol and ethyl acetate and dried at 60° C. to obtain the title compound (4.98 g, 12.0 mmol, 40%) as colorless crystals.

Provenance & Evidence