发明授权
EP1487770B1 FORMATION OF NEOLIGNAN BY DDQ MEDIATED DIMERISATION OF DIHYDROASARONE
有权
制作一个新木脂体是指由DDQ切换FROM二聚DIHYDROASARON
- 专利标题： FORMATION OF NEOLIGNAN BY DDQ MEDIATED DIMERISATION OF DIHYDROASARONE
- 专利标题（中）： 制作一个新木脂体是指由DDQ切换FROM二聚DIHYDROASARON
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申请号： EP02713168.9申请日： 2002-03-27
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公开(公告)号： EP1487770B1公开(公告)日： 2007-12-12
- 发明人: SINHA, Arun Kumar , JOSHI, B. P. Inst. Himalayan Bioresource Tech. , ACHARYA, Ruchi Inst. Himalayan Bioresource Tech.
- 申请人： Council of Scientific and Industrial Research;an Indian Reg. body incorporated under Reg. of Societies Act (Act XXI of 1860)
- 申请人地址： Rafi Marg New Delhi 110 001 IN
- 专利权人： Council of Scientific and Industrial Research;an Indian Reg. body incorporated under Reg. of Societies Act (Act XXI of 1860)
- 当前专利权人： Council of Scientific and Industrial Research;an Indian Reg. body incorporated under Reg. of Societies Act (Act XXI of 1860)
- 当前专利权人地址： Rafi Marg New Delhi 110 001 IN
- 代理机构： Engelhard, Markus
- 国际公布： WO2003080551 20031002
- 主分类号： C07C43/215
- IPC分类号： C07C43/215 ; C07C43/205 ; C07C41/30
摘要：
The present invention relates to a novel neolignan (NEOLASA-I) 3-ethyl-2-methyl-3-(2", 4", 5"-trimethoxy-phenyl-1-(2',4',5'-trimethoxy) phenyl-1-(2',4',5'-trimethoxy)phenyl-1-propene and a process for the preparation of high purity, higher yield neolignan, a-asarone, 2,4,5-trimethoxy-phenyl propionone from b-asaroneor b-asarone rich Acorus calamus oil containing a and g - asarone by hydrogenating and dimerizing by treatment with DDQ in presence of an organic acid.
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