- 专利标题: Formation of chiral 4-chromanones using chiral pyrrolidines in the presence of phenols or thiophenols
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申请号: US14902662申请日: 2014-07-03
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公开(公告)号: US09815809B2公开(公告)日: 2017-11-14
- 发明人: Ulla Letinois , Thomas Netscher
- 申请人: DSM IP ASSETS B.V.
- 申请人地址: NL Heerlen
- 专利权人: DSM IP ASSETS B.V.
- 当前专利权人: DSM IP ASSETS B.V.
- 当前专利权人地址: NL Heerlen
- 代理机构: Nixon & Vanderhye P.C.
- 优先权: EP13175326 20130705
- 国际申请: PCT/EP2014/064203 WO 20140703
- 国际公布: WO2015/001029 WO 20150108
- 主分类号: C07D311/00
- IPC分类号: C07D311/00 ; C07D311/22
摘要:
The present invention relates to a synthesis of chromanones or chromanes in a stereospecific matter in view of the 2-position in the chromanone or chromane ring. It has been found that this synthesis is particularly possible in the presence of a chiral compound of formula of a specific type and of at least one phenol or thiophenol.
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