Kempter,G. et al., Journal fur praktische Chemie (Leipzig 1954), 1971, vol. 313, p. 977 - 985
作者:Kempter,G. et al.
DOI:——
日期:——
Schubert,H. et al., Journal fur praktische Chemie (Leipzig 1954), 1962, vol. 17, p. 173 - 182
作者:Schubert,H. et al.
DOI:——
日期:——
[EN] COMPOSITION FOR DYEING KERATIN FIBRES, COMPRISING A PARTICULAR IMIDAZOLE COUPLER AND AN OXIDATION BASE<br/>[FR] COMPOSITION DE TEINTURE DE FIBRES DE KÉRATINE COMPRENANT UN COUPLEUR D'IMIDAZOLE PARTICULAIRE ET UNE BASE D'OXYDATION
申请人:OREAL
公开号:WO2015173321A1
公开(公告)日:2015-11-19
The invention relates to a composition comprising: i) at least one imidazole coupler of formula (I) with R1, R2 and R3 as defined in the description; ii) at least one oxidation base, preferably of heterocyclic and/or para-phenylenediamine type. The invention also relates to a process for dyeing keratin fibres using ingredients i) and ii); to a kit comprising ingredients i) and ii) and to the use of ingredient i) combined with ii) for dyeing keratin fibres, and to novel couplers. The composition of the invention leads to particularly powerful, chromatic and sparingly selective colourings. Furthermore, the colour build-up on keratin fibres treated with the composition of the invention is very satisfactory.
Synthesis and properties of 2,5-bis(furan-2-yl)-1H-imidazole
作者:M. M. El’chaninov、E. V. Vlasova、I. M. El’chaninov
DOI:10.1134/s1070363217020141
日期:2017.2
2,5-Bis(furan-2-yl)-1H-imidazole was synthesized by the Weidenhagen reaction of [2-(furan-2-yl)-2-oxoethyl]acetate with furfural. Alkylation of the title compound with methyl iodide in acetone in the presence of potassium hydroxide gave a mixture of isomeric N-methyl derivatives, 2,5-bis(furan-2-yl)-1-methyl-1H-imidazole being the major one. Electrophilic substitution reactions of the latter (nitration