Highly selective zeolite-catalysed mono-N-alkylation of arylenediamines by dialkyl carbonates
摘要:
Arylenediamines are mono-N-alkylated by dialkyl carbonates in the presence of NaY zeolite catalyst in a regioselective and nontoxic process. (c) 2007 Elsevier Ltd. All rights reserved.
Method For The Production Of Monoalkylated Diamines
申请人:Russ Werner Hubert
公开号:US20080125603A1
公开(公告)日:2008-05-29
Process for preparing alkylated amines
The present invention relates to a process for preparing a compound of the formula (I)
by reacting a compound of the formula (II)
with a compound of the formula (III)
(RO)
2
CO (III)
or a compound of the formula (IV)
in the presence of a zeolite of the NaY faujasite type, where Ar, X, R and n are each as defined in claim
1.
Elansolids, Novel Natural Metabolites of Flexibacter and Antibiotically Active Derivatives Thereof
申请人:Gerth Klaus
公开号:US20110034528A1
公开(公告)日:2011-02-10
The present invention describes Elansolids, a new class of novel anti-bacterial compounds of formula (I).
[EN] ELANSOLIDS, NOVEL NATURAL METABOLITES OF FLEXIBACTER AND ANTIBIOTICALLY ACTIVE DERIVATIVES THEREOF<br/>[FR] ÉLANSOLIDES, NOUVEAUX MÉTABOLITES NATURELS DE FLEXIBACTER ET DÉRIVÉS ANTIBIOTIQUEMENT ACTIFS DE CES DERNIERS
申请人:HELMHOLTZ INFEKTIONSFORSCHUNG
公开号:WO2009103534A2
公开(公告)日:2009-08-27
The present invention describes Elansolids, a new class of novel anti-bacterial compounds of formula (I).
[EN] DYE COMPOSITION USING AT LEAST ONE OXIDATION BASE AND AT LEAST ONE PARTICULAR AMINOBENZENE COUPLER, PROCESSES AND DEVICE<br/>[FR] COMPOSITION COLORANTE UTILISANT AU MOINS UNE BASE D'OXYDATION ET AU MOINS UN COUPLEUR D'AMINOBENZÈNE SPÉCIFIQUE, PROCÉDÉS ET DISPOSITIF
申请人:OREAL
公开号:WO2017050994A1
公开(公告)日:2017-03-30
The present invention relates to a composition for dyeing keratin fibres, in particular human keratin fibres such as the hair, comprising one or more oxidation bases and one or more particular aminobenzene couplers. The invention also relates to a process for dyeing keratin fibres using said composition in the presence of one or more chemical oxidizing agents, and to a multi-compartment device suitable for using said dye composition.
Highly selective zeolite-catalysed mono-N-alkylation of arylenediamines by dialkyl carbonates
作者:Warren J. Ebenezer、Michael G. Hutchings、Ken Jones、David A. Lambert、Ian Watt
DOI:10.1016/j.tetlet.2006.12.131
日期:2007.2
Arylenediamines are mono-N-alkylated by dialkyl carbonates in the presence of NaY zeolite catalyst in a regioselective and nontoxic process. (c) 2007 Elsevier Ltd. All rights reserved.