发明授权
- 专利标题： Processes for preparing enol esters
- 专利标题（中）： 制备烯醇酯的方法
-
申请号： US723528申请日： 1976-09-15
-
公开(公告)号： US4049682A公开(公告)日： 1977-09-20
- 发明人: Alan Owen Pittet , Erich Manfred Klaiber , Manfred Hugo Vock , Edward J. Shuster , Joaquin Vinals
- 申请人： Alan Owen Pittet , Erich Manfred Klaiber , Manfred Hugo Vock , Edward J. Shuster , Joaquin Vinals
- 申请人地址： NY New York
- 专利权人： International Flavors & Fragrances Inc.
- 当前专利权人： International Flavors & Fragrances Inc.
- 当前专利权人地址： NY New York
- 主分类号： A24B15/34
- IPC分类号： A24B15/34 ; C07C409/24 ; C11B9/00 ; C09F5/08 ; C09F7/10
摘要：
Described are processes for preparing enol esters having the generic structure: ##STR1## (which structure is intended to cover both the "cis" and the "trans" isomers thereof) wherein R.sub.1 is C.sub.1 -C.sub.11 alkyl, and R.sub.4 is hydrogen or methyl, produced by one of the following processes:I. Reacting beta-ionone or a homologue thereof with a peracid;Ii. Reacting an enol acetate formed by process (i) (when R.sub.1 is methyl and R.sub.4 is hydrogen) with an alkanoic acid anhydride or an acyl halide, to form another enol ester;Iii. Reacting beta-cyclohomocitral having the formula: ##STR2## with a lower alkanoic acid anhydride or an acyl halide.
公开/授权文献
- US5704753A Easily attachable and detachable connector device 公开/授权日：1998-01-06
信息查询
