Acetic Anhydride → 1-(2-Nitroethenyl)-4-phenoxybenzene

Participants

Reaction Steps

A solution of sodium 2-nitro-1-(4-phenoxy-phenyl)-ethanolate (1.17 g, 4.16 mmol) described in Manufacturing Example 17-1-1, acetic anhydride (510 mg, 4.99 mmol) and triethylamine (696 μL, 4.99 mmol) in anhydrous tetrahydrofuran (20 mL) was stirred overnight under nitrogen atmosphere at room temperature. The reaction mixture was partitioned into water and ethyl acetate at room temperature. The organic layer was washed with water and saturated aqueous sodium chloride, and dried over anhydrous magnesium sulfate, and the solvent was evaporated under a reduced pressure to obtain the title compound (1.4 g, 70%, purity: ca. 50%) as a crude product.

Provenance & Evidence