Sodium Cyanide → 2-Naphthylacetonitrile

関与物質

反応手順

To a stirred solution of sodium cyanide (10.5 g, 0.214 mol) in H2O (20 mL) was added a solution of 2-(bromomethyl)naphthalene (40.0 g, 0.181 mol) in EtOH (170 mL). The resulting mixture was heated at reflux for 3 h, then spin-evaporated in vacuo. The residue was partitioned between H2O (175 mL) and CH2Cl2 (200 mL). The aqueous layer was further extracted with CH2Cl2 (3×200 mL). The combined organic layers were dried over MgSO4 (5 g) and spin-evaporated in vacuo to a solid. The solid was dissolved in refluxing EtOH (100 mL). The clarified solution was stored at 3° C. for 16 h. Solids were collected by filtration and dried to constant weight in vacuo to give 24.8 g (81.9%) of product suitable for further transformation. A total of 257.2 g of material was prepared in this fashion.

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