| 发明名称 | Isomerization of β-keto-allenes | ||
| 摘要 | Isomerization of β-keto-allenes of the general formula I wherein R1 is hydrogen, methyl or ethyl, in particular hydrogen or methyl; R2 is hydrogen or methyl; R3 is hydrogen or methyl, in particular methyl and R4 is an aliphatic hydrocarbon residue containing 1-37 carbon atoms, into corresponding α,γ-dienones of formula II by treatment with a basic ion exchange resin.; | ||
| 申请公布号 | US8802898(B2) | 申请公布日期 | 2014.08.12 |
| 申请号 | US201113642047 | 申请日期 | 2011.04.18 |
| 申请人 | DSM IP Assets B.V. | 发明人 | Bonrath Werner;Karge Reinhard;Netscher Thomas;Pressel Yann |
| 分类号 | C07C45/67 | 主分类号 | C07C45/67 |
| 代理机构 | Nixon & Vanderhye P.C. | 代理人 | Nixon & Vanderhye P.C. |
| 主权项 | 1. Isomerization of β-keto-allenes of the general formula wherein R1 is hydrogen, methyl or ethyl;R2 is hydrogen or methyl;R3 is hydrogen or methyl, andR4 is an aliphatic hydrocarbon residue containing 1-37 carbon atoms, into corresponding α,γ-dienones of formula by treatment with a basic ion exchange resin. | ||
| 地址 | Heerlen NL | ||