497-25-6, Catalysts function by providing an alternate reaction mechanism that has a lower activation energy than would be found in the absence of the catalyst. In some cases, the catalyzed mechanism may include additional steps.In a article, 497-25-6, molcular formula is C3H5NO2, introducing its new discovery.
Meta-phenylenediamines, process for preparation thereof, intermediate compounds and use of these meta-phenylenediamines as couplers for the oxidation dyeing of keratinous fibres and especially human hair
New meta-phenylenediamines, process for preparation thereof, intermediate compounds and use of these metaphenylenediamines as couplers for the oxidation dyeing of keratinous fibres and especially human hair. The invention relates to the compounds of the formula: STR1 in which R1 and R2 denote, independently of one another, a hydrogen atom, a C1 -C4 alkyl radical or a C2 -C3 mono- or polyhydroxyalkyl radical, Z and Z’ denote, independently of one another, a C1 -C4 alkyl or C2 -C4 hydroxyalkyl radical, with the proviso that, when R1 and R2 simultaneously denote a hydrogen atom, Z and Z’ do not simultaneously denote a methyl radical, and to their addition salts with an acid, to a process for preparation thereof and also to their use, by way of couplers, in an aqueous vehicle, in combination with at least one oxidation dye percursor of the para type, for the dyeing of human hair. The invention also relates to the intermediate compounds of the formula: STR2 in which R’ denotes a hydrogen atom, a C1 -C4 alkyl radical, a C2 or C3 mono- or polyhydroxyalkyl radical, or an acetyl or beta-chloethoxycarbonyl radical, and z and z’ denote, independently of one another, a C1 -C4 alkyl radical.
Because enzymes can increase reaction rates by enormous factors and tend to be very specific, 497-25-6, typically producing only a single product in quantitative yield, they are the focus of active research.you can also check out more blogs about 497-25-6
Reference£º
Oxazolidine – Wikipedia,
Oxazolidine | C3H137NO – PubChem