337906-36-2Relevant academic research and scientific papers
NEW TELESCOPING SYNTHESES OF 2-METHOXYMETHYL-P-PHENYLENEDIAMINE
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, (2021/02/19)
The invention relates to processes for preparing 2 -methoxymethyl-p-phenylenediamine (I), cosmetically acceptable salts thereof, or mixtures thereof.
PROCESS FOR THE PREPARATION OF 2-ALKOXYMETHYL-1, 4-BENZENEDIAMINES
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Page/Page column 20; 22, (2017/08/26)
A process for synthesizing 2-methoxymethyl-l,4-benzenediamines which comprises a radical halogenation step of compounds of formula (II) to compounds of formula (III). The final product can be 2-methoxymethyl-l,4-benzenediamine useful as coupler or primary intermediate in compositions for dyeing keratin fibers.
A 2 - ( methoxy methyl ) phenyl -1,4-diamine preparation method
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, (2016/12/16)
The invention relates to a method for preparing 2-(methoxyl-methyl) phenyl-1,4-diamine. The method comprises the following steps: by taking o-nitrobenzyl alcohol as a raw material, performing methylation and hydrogenation reduction reaction so as to obtai
New Telescoping Synthesis Of 2- Methoxymethyl-P-Phenylenediamine
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Paragraph 0049, (2016/05/24)
A telescoping process for the preparation of 2-methoxymethyl-p-phenylenediamine, a cosmetically acceptable salt thereof, or mixture thereof. The process according to the present invention is a particularly cost effective process in that it avoids sophisticated chemical steps which requires special equipment or expensive catalysts and in that it comprises a recycling step of one of the starting materials, namely 2-hydroxymethylaniline.
Process for Preparing Primary Intermediates for Dyeing Keratin Fibers
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Paragraph 0047, (2014/05/08)
A process has been developed for preparing 2-methoxymethyl-1,4-benzenediamine (IV-a), other compounds of formula (IV), and the salts thereof, all of which may be used as primary intermediates in compositions for dyeing keratin fibers.
Process for Preparing Primary Intermediates for Dyeing Keratin Fibers
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Paragraph 0053, (2014/05/08)
A process has been developed for preparing 2-methoxymethyl-1,4-benzenediamine (IV-a), other compounds of formula (IV), and the salts thereof, all of which may be used as primary intermediates in compositions for dyeing keratin fibers.
Methods of Synthesizing 2-Substituted-1,4-Benzenediamine
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, (2012/04/05)
Disclosed is a method of making a 2-substituted-1,4-benzenediamine by nucleophilic aromatic substitution.
METHODS OF SYNTHESIZING 2-METHOXYMETHYL-1,4-BENZENEDIAMINE
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, (2012/04/17)
Disclosed is a method of making 2-methoxymethyl-1,4-benzenediamine that includes hydrogenating 1-benzylamino-2-(methoxymethyl)-4-nitrobenzene in the presence of a hydrogenation catalyst.
PROCESS FOR THE PREPARATION OF 2-METHOXYMETHYL-1,4-BENZENEDIAMINE, ITS DERIVATIVES THEREOF AND THE SALTS THEREOF
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Page/Page column 20, (2012/06/16)
A process for synthesizing 2-methoxymethyl-1,4-benzenediamine, its derivatives of formula (IV) and the salts thereof, which comprises a reductive amination step. The preferred final product is 2-methoxymethyl-1,4-benzenediamine of formula (IV-a). (Formula
1,3-Dihydroxybenzene derivatives and colorants containing said compounds
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, (2008/06/13)
1,3-Dihydroxybenzene derivatives of general formula (I) or (Ia) or physiologically tolerated, water-soluble thereof wherein R′1 denotes substituted pyridyl group, a pyrimidyl group, a group of formula (IIa) or (IIIa) and the dyeing agents for keratin fibers containing these compounds.
