ANDERSSON, BENGT;WIKSTROM;HALLBERG, ANDERS, ACTA. CHEM. SCAND., 44,(1990) N0, C. 1024-1028
作者:ANDERSSON, BENGT、WIKSTROM、HALLBERG, ANDERS
DOI:——
日期:——
SUBSTITUTED 3-AMINO CHROMANS
申请人:THE UPJOHN COMPANY
公开号:EP0470176A1
公开(公告)日:1992-02-12
US5306830A
申请人:——
公开号:US5306830A
公开(公告)日:1994-04-26
[EN] SUBSTITUTED 3-AMINO CHROMANS
申请人:THE UPJOHN COMPANY
公开号:WO1990012795A1
公开(公告)日:1990-11-01
(EN) The present invention is directed to novel chromane derivatives substituted in the 3-position by a substituted amino moiety and substituted on the aromatic ring with one or two substituents. The novel chromane derivatives have useful CNS properties.(FR) L'invention présentée concerne de nouveaux dérivés de chromanes substitués dans la position 3 par fraction d'amine substituée et substitution dans l'anneau aromatique par un ou deux substituants. Les nouveaux dérivés de chromane ont des propriétés très utiles au niveau du système nerveux central.
Synthesis of 3-Dialkylaminochromans via Thallium(III)-Induced Cyclization of Allyl Aryl Ethers.
作者:Bengt Andersson、Håkan Wikström、Anders Hallberg
DOI:10.3891/acta.chem.scand.44-1024
日期:——
(5) and 5-methoxy-8-methylthio-3-(dipropylamino)chroman (6), have been prepared from 8-bromo-5-methoxy-3-chromanol (11). This precursor was synthesized from 3-allyloxy-4-bromoanisole (8), by a thallium(III)-mediated ring-closure reaction. Compound 11 also served as starting material for the synthesis of 8-bromo-3-(dipropylamino)-5-methoxychroman (7).