Direct methoxylation of nitroarenes and nitroazaarenes with alkaline methoxides via nucleophilic displacement of an aromatic hydrogen atom
作者:Takehiko Kawakami、Hitomi Suzuki
DOI:10.1039/a909675b
日期:——
at room temperature results in the displacement of an aromatichydrogen at the 4-position by methoxide, affording 2,4-dinitroanisole and its 6-substituted derivatives, respectively, in low to moderate yield. In contrast, an equimolar reaction under similar conditions leads to the replacement of the nitro group in preference to the ringhydrogen. The reaction does not take place with lithium methoxide
[EN] 7-NITRO-8-HYDROXYQUINOLINE DERIVATIVE, PREPARATION METHOD THEREFOR AND MEDICAL USE THEREOF<br/>[FR] DÉRIVÉ DE 7-NITRO-8-HYDROXYQUINOLÉINE, SON PROCÉDÉ DE PRÉPARATION ET UTILISATION MÉDICALE ASSOCIÉE<br/>[ZH] 7-硝基-8-羟基喹啉衍生物、其制备方法及其医药用途
7-AMINO-1,2,3,4-TÉTRAHYDROQUINOLÉINES PARTICULIERS, PROCÉDÉ ET COMPOSITION
申请人:L'OREAL
公开号:EP3694485A1
公开(公告)日:2020-08-19
[EN] SPECIFIC 7-AMINO-1,2,3,4-TETRAHYDROQUINOLINES, METHOD, AND COMPOSITION<br/>[FR] 7-AMINO-1,2,3,4-TÉTRAHYDROQUINOLÉINES PARTICULIERS, PROCÉDÉ ET COMPOSITION
申请人:OREAL
公开号:WO2019072697A1
公开(公告)日:2019-04-18
La présente demande a pour objet un procédé de coloration des fibres kératiniques, en particulier des fibres kératiniques humaines telles que les cheveux, comprenant une étape d'application sur lesdites fibres kératiniques d'un ouplusieurs dérivés de 7-amino-1,2,3,4- tétrahydroquinoléine substitués en position 8, les compositions tinctoriales comprenant de tels 7-amino-1,2,3,4-tétrahydroquinoléines ainsi que les dispositifs mettant en œuvre ces composés.
SPECIFIC 7-AMINO-1,2,3,4-TETRAHYDROQUINOLINES, METHOD, AND COMPOSITION
申请人:L'Oreal
公开号:US20200276102A1
公开(公告)日:2020-09-03
The present patent application relates to a process for dyeing keratin fibers, in particular human keratin fibers such as the hair, comprising a step of applying to said keratin fibers one or more 7-amino-1,2,3,4-tetrahydroquinoline derivatives substituted in position 8, to dye compositions comprising such 7-amino-1,2,3,4-tetrahydroquinolines, and also to the devices using these compounds.