[EN] PROCESS FOR THE PREPERATION OF N-ALKYL-2(HYDROXY-4 BENZOYL)-3 BENZOFURANS AND ITS INTERMEDIATES THEREOF [FR] PROCEDE D'ELABORATION DE N-ALKYLE-2(HYDROXY-4 BENZOYLE)-3 BENZOFURANES, ET INTERMEDIAIRES CORRESPONDANTS
Process for the preparation of n-alkyl-2(hydroxy-4 benzoyl)-3 benzofurans and its intermediates thereof
申请人:Shoutteeten Alain
公开号:US20070155831A1
公开(公告)日:2007-07-05
Process for the preparation of a 2-(n-alkyl)-3-(4-hydroxybenzoyl)benzofuran of formula (I)
in which R represents a linear or branched alkyl radical including from 1 to 5 carbon atoms and R1 represents a linear or branched alkyl radical including from 1 to 3 carbon atoms, a linear or branched alkoxy radical including from 1 to 3 carbon atoms, a halogen atom or a nitro radical, and intermediates.
Process for the preparation of n-alkyl-2(hydroxy-4benzoyl)-3 benzofurans and intermediates thereof
申请人:Clariant (France)
公开号:US07544817B2
公开(公告)日:2009-06-09
Process for the preparation of a 2-(n-alkyl)-3-(4-hydroxybenzoyl)benzofuran of formula (I)
in which R represents a linear or branched alkyl radical including from 1 to 5 carbon atoms and R1 represents a linear or branched alkyl radical including from 1 to 3 carbon atoms, a linear or branched alkoxy radical including from 1 to 3 carbon atoms, a halogen atom or a nitro radical, and intermediates.
[EN] PROCESS FOR THE PREPERATION OF N-ALKYL-2(HYDROXY-4 BENZOYL)-3 BENZOFURANS AND ITS INTERMEDIATES THEREOF<br/>[FR] PROCEDE D'ELABORATION DE N-ALKYLE-2(HYDROXY-4 BENZOYLE)-3 BENZOFURANES, ET INTERMEDIAIRES CORRESPONDANTS
申请人:CLARIANT FRANCE SA
公开号:WO2005066149A1
公开(公告)日:2005-07-21
Process for the preparation of a 2-(n-alkyl)-3-(4-hydroxybenzoyl)benzofuran of formula (I) in which R represents a linear or branched alkyl radical including from 1 to 5 carbon atoms and R1 represents a linear or branched alkyl radical including from 1 to 3 carbon atoms, a linear or branched alkoxy radical including from 1 to 3 carbon atoms, a halogen atom or a nitro radical, and intermediates.
The present invention relates to 5-nitrobenzofurans, to a process for preparing 5-nitrobenzofurans, and to 5-nitro-2,3-dihydrobenzofuran-3-ols, to a process for the preparation thereof and to intermediates.