申请人:International Flavors & Fragrances Inc.
公开号:US04148826A1
公开(公告)日:1979-04-10
Described for the use in foodstuff, chewing gum, toothpaste and medicinal product flavor and aroma, tobacco flavor and aroma and perfume aroma augmenting, modifying, enhancing and imparting compositions and as foodstuff, chewing gum, toothpaste, medicinal product, tobacco, perfume and perfumed article aroma imparting materials are one or more alkenyl or alkylidene norbornyl ketone derivatives having the generic structure: ##STR1## wherein R is C.sub.3 -C.sub.5 alkenyl or C.sub.3 -C.sub.5 alkylidene and the dashed lie is a carbon-carbon single bond or a carbon-carbon double bond, specifically the compounds having the structures: ##STR2## and products produced according to the process of reacting 2-acetyl-3,3-dimethyl-5-norbornene with a complex of N-methylaniline and an alkyl magnesium halide to form a grinard salt of 2-acetyl-3,3-dimethyl-5-norbornene having the structure: ##STR3## said reacting being carried out from -5.degree. C. up to about 40.degree. C.; reacting the resulting compound with acid aldehyde in the presence of a solvent selected from the group consisting of benzene, tetrahydrofuran, and diethyl ether at a temperature in the range of from -5.degree. C. up to 20.degree. C.; hydrolyzing the resulting material to form substantially a keto alcohol in the presence of a mineral acid; and then dehydrating the resulting keto alcohol with a mild dehydrating agent at a temperature in the range of from 80.degree. C. up to 150.degree. C. over a period of time of from 1 up to 5 hours in the presence of a strong acid.
描述用于食品、口香糖、牙膏和药品香味和气味、烟草香味和气味以及香水增强、修改、提高和赋予组合物的用途,以及用作食品、口香糖、牙膏、药品、烟草、香水和带香物品气味赋予材料的一个或多个烯基或烷基取代的莫尔比林酮衍生物,其通用结构为:##STR1## 其中R为C.sub.3-C.sub.5烯基或C.sub.3-C.sub.5烷基,虚线为碳-碳单键或碳-碳双键,具体结构为:##STR2## 和根据将2-乙酰基-3,3-二甲基-5-莫尔比烯与N-甲基苯胺和烷基镁卤化物的复合物反应制备格林纳德盐,形成结构为:##STR3## 的产物,所述反应在-5°C至约40°C范围内进行;在苯、四氢呋喃和二乙醚等溶剂存在下,在温度为-5°C至20°C范围内,将所得化合物与酸醛反应;在矿物酸存在下,水解所得物质以形成基本上为酮醇;然后,在强酸存在下,使用温和的脱水剂在80°C至150°C范围内,经过1至5小时的时间,脱水所得的酮醇。