| 发明名称 |
Sulfone polyene intermediates |
| 摘要 |
A process for producing carotenoids and carotenoid intermediates via reduction of sulfonyl polyenes with a dithionite in the presence of ammonia or an aliphatic amine, including novel intermediates in this process, which carotenoids are known coloring agents for foodstuffs, animal feeds, pharmaceuticals, etc.
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| 申请公布号 |
US4883887(A) |
申请公布日期 |
1989.11.28 |
| 申请号 |
US19880214567 |
申请日期 |
1988.07.01 |
| 申请人 |
HOFFMANN-LA ROCHE INC. |
发明人 |
BERNHARD, KURT;JAEGGLI, STEPHAN;KREIENBUEHL, PAUL;SCHWIETER, ULRICH |
| 分类号 |
C07C43/303;B01J27/24;B01J31/02;C07B61/00;C07C1/00;C07C1/32;C07C11/21;C07C13/20;C07C41/00;C07C41/48;C07C45/51;C07C47/24;C07C51/00;C07C57/02;C07C67/00;C07C69/587;C07C313/00;C07C317/04;C07C317/14;C07C317/18;C07C317/24;C07C317/44;C07C401/00;C07C403/10;C07C403/12;C07C403/20;C07C403/22;C07C403/24;C07D317/72 |
主分类号 |
C07C43/303 |
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