99316-63-9

Upstream product

• 99316-60-6 6-Benzyloxy-5-methoxy-naphthalene-1,4-diol 
• 77-78-1 dimethyl sulfate 
• 99316-55-9 1,2-Diacetoxy-5,8-dimethoxynaphthalin 
• 99316-59-3 6-Benzyloxy-5-methoxy-1,4-naphthochinon 
• 99316-57-1 6-Benzyloxy-5-hydroxy-1,4-naphthochinon 
• 99316-54-8 5,8-Dimethoxy-1,2-naphthochinon 
• 99316-53-7 1-benzyloxy-5,8-dimethoxy-naphthalene 
• 89474-91-9 1-Benzyloxy-4-chlor-5,8-dimethoxynaphthalin 
• 75445-68-0 5-Benzyloxy-naphthalene-1,4-diol 
• 99316-56-0 5,6-Diacetoxy-1,4-naphthochinon 
• 31039-64-2 5,6-dihydroxy-1,4-naphthoquinone 
• 75445-61-3 5-(benzyloxy)-1,4-dihydronaphthalene-1,4-dione 
• 91963-30-3 5,8-dimethoxynaphthalen-1-ol 

Downstream Products

• 99316-65-1 6,,6'-Dibenzyloxy-4,4',5,5'-tetramethoxy-2,2'-binaphthyliden-1,1'-dion 

Relevant academic research and scientific papers

One step hair coloring compositions using salts

A hair coloring composition comprising the following two compositions which are mixed just prior to application to the hair: (a) a composition comprising a water-soluble peroxygen oxidizing agent; and (b) a composition comprising one or more oxidative hair coloring agents selected from the group consisting of an aromatic diamine, an amino phenol, a naphthol, a polyhydric phenol, a catechol and mixtures thereof; wherein the composition comprising one or more oxidative hair coloring agents further comprises al least one water soluble carbonate releasing salts; and optionally a water soluble ammonium salt, is described.

Enhanced color deposition for hair with sequestering agents

Hair coloring compositions which comprise: (A) non-nitrogenous chelating agents from the group consisting of polyphosphate; phosphonates; hydroxycarboxylates; polyacrylates; zeolite; and mixtures thereof; (B) an oxidative dye primary intermediate; and (C) an oxidative dye coupler; (D) and water are described. The present invention also relates to a method for coloring hair which comprises contacting said hair with a hair coloring composition as described above.

Process for the two-stage oxidation dyeing of keratin fibers with a manganese complex or salt and a 4-substituted 1-naphthol, and dyeing kit

A process for the two-stage oxidation dyeing of keratin fibers by applying to the keratin fibers: in a first stage, at least one composition A containing at least one manganese salt and/or a manganese complex, in a second stage, at least one composition B having a pH of greater than or equal to 6, and resulting from the extemporaneous mixing of at least one composition B1 containing at least one 4-substituted 1-naphthol and at least one composition B2 containing at least one oxidizing agent, and corresponding multi-compartment dyeing kit.

Dimeric Naphthoquinones, XV. Syntheses of Diomelquinone A and its Dimer, 7,7'-Dihydroxy-8,8'-dimethoxy-3,3'-dimethyl-2,2'-bi-1,4-naphthoquinone

Diomelquinone A (3b) and its dimer 3a are synthesized starting from 8-chloroplumbagin (4a) or juglone (2a); the ortho-quinones 7a and 11a are intermediates.