DIETER, JANICE W.;LI, ZHONG;NICHOLAS, KENNETH M., TETRAHEDRON LETT., 28,(1987) N 45, 5415-5418
作者:DIETER, JANICE W.、LI, ZHONG、NICHOLAS, KENNETH M.
DOI:——
日期:——
FORMATION OF NEOLIGNAN BY DDQ MEDIATED DIMERISATION OF DIHYDROASARONE
申请人:Council of Scientific and Industrial Research;an Indian Reg. body incorporated under Reg. of Societies Act (Act XXI of 1860)
公开号:EP1487770A1
公开(公告)日:2004-12-22
[EN] FORMATION OF NEOLIGNAN BY DDQ MEDIATED DIMERISATION OF DIHYDROASARONE<br/>[FR] FORMATION DE NEOLIGNAN PAR DIMERISATION DE DIHYDROASARONE MEDIEE PAR DDQ
申请人:COUNCIL SCIENT IND RES
公开号:WO2003080551A1
公开(公告)日:2003-10-02
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.