发明专利
JPS5653673A ALPHAAMETHYL OR ETHYLLGAMMAAMONO OR DIALKYLLSUBSTITUTEDDGAMMAA BUTYROOLACTONE AND ITS PREPARATION
失效
基本信息:
- 专利标题： ALPHAAMETHYL OR ETHYLLGAMMAAMONO OR DIALKYLLSUBSTITUTEDDGAMMAA BUTYROOLACTONE AND ITS PREPARATION
- 申请号：JP12979179 申请日：1979-10-08
- 公开(公告)号：JPS5653673A 公开(公告)日：1981-05-13
- 发明人： KAWASAKI AKIHIRO , TANIGUCHI MASANOBU , MARUYAMA ISAO , MATSUI MASAAKI
- 申请人： MARUZEN SEKIYU KAGAKU KK
- 专利权人： MARUZEN SEKIYU KAGAKU KK
- 当前专利权人： MARUZEN SEKIYU KAGAKU KK
- 优先权： JP12979179 1979-10-08
- 主分类号： C07D307/33
- IPC分类号： C07D307/33 ; A61K8/49 ; A61Q13/00 ; C07D307/32 ; C11B9/00
摘要：
NEW MATERIAL:An alpha-emthyl or ethyl-gamma-mono or dialkyl-substituted-gamma-butyrolactone of formula I [R1 is (CH3)2CH, CH3CH2C(CH3)H, CH3CH2CH2, or CH3CH2 CH2CH2; R2 is H or CH3; R3 is CH3 or C2H5; when R1 is (CH3)2CH or CH3CH2 CH2, R3 is CH3, and when R1 is CH3CH2C(CH3)H, or CH3CH2CH2CH2, R3 is C2H5]. EXAMPLE:alpha-Methyl-gamma-penthyl-gamma-butyrolactone. USE:A modifier (having peach flavor) of an aromatic composition. An intermediate of prostaglandins, pyrethroidal pesticides, etc. PROCESS:The compound of formula I is prepared by the oxidation of a novel diol of of formula II at the terminal OH with an oxidizing agent such as potassisum permanganate, etc., followed by cyclization to obtain a lactone ring.
公开/授权文献:
- JPS5938952B2 JPS5938952B2 - 公开/授权日：1984-09-20
信息查询:
EspacenetIPC结构图谱:
| C | 化学；冶金 |
| --C07 | 有机化学 |
| ----C07D | 杂环化合物 |
| ------C07D307/00 | 杂环化合物，含五元环，含有1个氧原子作为仅有的杂环原子 |
| --------C07D307/02 | .不和其他环稠合 |
| ----------C07D307/04 | ..环原子间或环原子与非环原子间没有双键 |
| ------------C07D307/30 | ...有杂原子，或有3个键连杂原子，其中最多有1个键连卤原子的碳原子，例如酯基或腈基，直接连在环碳原子上 |
| --------------C07D307/32 | ....氧原子 |
| ----------------C07D307/33 | .....在位置2，氧原子为酮基或非取代的烯醇形式 |