[EN] METHOD FOR INDUSTRIALLY PREPARING NITROGEN SUBSTITUTED AMINO-5,6,7,8-TETRAHYDRONAPHTHOL<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION INDUSTRIELLE D'AMINO-5,6,7,8-TÉTRAHYDRONAPHTOL SUBSTITUÉ PAR AZOTE
申请人:SHAN DONG LUYE PHARM CO LTD
公开号:WO2013000273A1
公开(公告)日:2013-01-03
A method for industrially preparing a nitrogen substituted 6-amino-5,6,7,8-tetrahydronaphthol is disclosed. The method comprises reacting a nitrogen substituted amino-5,6,7,8-tetrahydronaphthol compound of formula (II) with a 2-substituted ethyl sulfonate compound of formula (III) under an alkaline condition and in the presence of a sulfite.