Synthese von 12‐Cyano‐15‐hexadecanolid durch Ringerweiterung von 1‐(3′‐Hydroxybutyl)‐2‐oxocyclododecan‐1‐carbonitril

Abstract
Synthesis of 12‐Cyano‐15‐hexadecanolide by Ring Enlargement of 1‐(3′‐Hydroxybutyl)‐2‐oxocyclododecane‐1‐carbonitrileIn the presence of Bu4NF, 2‐oxocyclododecane‐1‐carbonitrile (1) reacted with acrylaldehyde to form the corresponding aldehyde 2 which was methylated, e.g. with CH3 Ti[OCH(CH3)2]3. The resulting 1‐(3′‐hydroxybutyl)‐2‐oxocyclododecane‐1‐carbonitrile (5) was converted to 12‐cyano‐15‐hexadecanolide (6) in nearly quantitative yield under the influence of Bu4NF.