Synthesis of 1,4-diphenyl-3-phenylimino-1,2-dihydro-1,2,4-triazolium hydroxide (Nitron)
摘要:
1,4-Diphenyl-3-phenylimino-1,2-dihydro-1,2,4-triazolium hydroxide (Nitron) is prepared by the reaction of Pb3O4 with diphenylthiourea, followed by the reaction of the obtained diphenylcarbodiimide with phenylhydrazine to form triphenylaminoguanidine, whose heterocyclization yields 1,4-diphenyl-3-phenylimino-1,2-dihydro-1,2,4-triazole, which is subsequently oxidized.
A silver halide photographic material containing at least one of compounds represented by formula (I) and salts thereof in at least one hydrophilic colloidal layer of the silver halide photographic material gives photographic images having stable and excellent quality without being accompanied by the increased formation of fog and increased changes of sensitivity and gradation upon high temperature processing: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic ring group; or one or both of said R.sub.1 and R.sub.2 and said R.sub.3 and R.sub.4 combine with each other to form a ring.
Composition de mise en forme des cheveux comprenant au moins une imine hors hydroxyde
申请人:L'OREAL
公开号:EP1532960A1
公开(公告)日:2005-05-25
L'invention a pour objet une composition cosmétique de mise en forme permanente des fibres kératiniques prête à l'emploi contenant, en tant qu'agent actif de mise en forme permanente, une imine n'appartenant pas à la famille des hydroxydes. Elle vise également un kit contenant des compartiments à mettre en contact pour former la composition prête à l'emploi, ainsi qu'un procédé mettant en oeuvre cette composition.
Composition de défrisage des cheveux comprenant au moins une imine hors hydroxyde
申请人:L'OREAL
公开号:EP1532963A1
公开(公告)日:2005-05-25
L'invention a pour objet une composition cosmétique de défrisage des fibres kératiniques prête à l'emploi, le milieu cosmétiquement acceptable étant exempt d'alcane polyhydroxylé, contenant, en tant qu'agent actif de défrisage, une imine n'appartenant pas à la famille des hydroxydes. Elle vise également un kit contenant des compartiments à mettre en contact pour former la composition prête à l'emploi, ainsi qu'un procédé mettant en oeuvre cette composition.
Hair shaping composition comprising at least one non-hydroxide imine
申请人:Malle Gerard
公开号:US20050129645A1
公开(公告)日:2005-06-16
The disclosure relates to ready-to-use cosmetic compositions for permanently shaping keratin fibers comprising, as a permanent hair-shaping active agent, an imine not belonging to the hydroxide family. The disclosure also provides kits comprising compartments to be placed in contact to form the ready-to-use compositions, and processes using these compositions.
Hair relaxing composition comprising at least one non-hydroxide imine
申请人:Malle Gerard
公开号:US20050136017A1
公开(公告)日:2005-06-23
The disclosure provides ready-to-use cosmetic compositions for relaxing keratin fibers in a cosmetically acceptable medium free of polyhydroxylated alkane, containing, as a relaxing agent, an imine not belonging to the hydroxide family. The disclosure also provides kits containing compartments to be placed in contact to form the ready-to-use compositions, and processes using these compositions.