塩化プレニルを原料とする新しい香料の合成

概要

論文の詳細を見る
In order to find new aroma chemicals, various type of terpenoid compounds are prepared using prenyl chloride (1) as a raw material. The main reaction is the condensation of (1) and aldehydes with aqueous sodium hydroxide (ca. 50%) in the presence of a tetrabutylammonium iodide catalyst. The prenylated aldehydes (2) are converted to the corresponding alcohols (3), acetals (4) or nitriles (5). Alcohols (6) are also obtained from (2) and various allylic Grignard reagents. Those compounds are evaluated by their odor : 2, 5-Dimethyl-2-propyl-4-hexen-1-ol (3c), 2, 5-dimethy;-2-phenyl-4-hexenal (2 e), 2, 5-dimethyl-2- (<I>p</I>-methylphenyl) -4-hexenal (2 h), 2, 5-dimethyl-2-propyl-4-hexenal dimethyl acetal (4 c) each emited an odor that will qualify them for cosmetic application.
日本油化学会の論文