1325-86-6

Usage

Preparation

Bis(4-(diethylamino)phenyl)methanone and N-Ethylnaphthalen-1-amine in Toluene and Phosphoryl chloride?condensation.

Properties and Applications

brilliant blue (NC raw lacquer). Slightly soluble in water, but soluble in hot water for blue, soluble in ethanol for blue. In concentrated sulfuric acid for brown light yellow, dilution after red yellow. Dye aqueous solution to join sodium hydroxide as red brown. Mainly used for carbon paper, ball pen etc of cultural and educational supplies coloring. Standard Light Fastness Heat-resistant(℃) water Sodium Carbonate(5%) Hydrochloric acid(5%) Melting point Stable ISO Poor 90 110 Insoluble No change Dissole

Standard

Light Fastness

Melting point

Stable

ISO

Poor

InChI:InChI=1/C29H33N3O/c1-4-30-23-15-11-21(12-16-23)29(33,22-13-17-24(18-14-22)31-5-2)27-19-20-28(32-6-3)26-10-8-7-9-25(26)27/h7-20,30-33H,4-6H2,1-3H3

Synthetic route

Victoria Pure Ink Blue BO → C.I. solvent blue 5 (1325-86-6)

Conditions	Yield
With hydroxide In water Equilibrium constant; Rate constant;

4,4'-bis diethylamino diphenyl 4''-monoethylamino 1-naphthyl carbocation (36396-19-7) → C.I. solvent blue 5 (1325-86-6)

Conditions	Yield
With water In phosphate buffer at 35℃; pH=5.72; Kinetics; Equilibrium constant; Further Variations:; pH-values;

C.I. solvent blue 5 (1325-86-6) → Victoria Pure Ink Blue BO

Conditions	Yield
In water Equilibrium constant;

aluminum(III) sulfate + 4-hydroxysalicylic acid (89-86-1) + C.I. solvent blue 5 (1325-86-6) → C14H8AlO8(1-)*C33H40N3(1+)

Conditions	Yield
Stage #1: aluminum(III) sulfate; 4-hydroxysalicylic acid With sodium hydroxide In water at 60 - 90℃; for 6h; pH=7; Stage #2: C.I. solvent blue 5 In N,N-dimethyl-formamide at 25 - 80℃; for 8h; Stage #3: In N,N-dimethyl-formamide at 20℃; for 1h;

bontron E-81 + C.I. solvent blue 5 (1325-86-6) → C30H40CrO6(1-)*C33H40N3(1+)

Conditions	Yield
Stage #1: bontron E-81; C.I. solvent blue 5 In N,N-dimethyl-formamide at 25 - 80℃; for 8h; Stage #2: With ion exchange water In N,N-dimethyl-formamide at 20℃; for 1h;

bontron E-108 + C.I. solvent blue 5 (1325-86-6) → C30H40AlO6(1-)*C33H40N3(1+)

Conditions	Yield
Stage #1: bontron E-108; C.I. solvent blue 5 In N,N-dimethyl-formamide at 25 - 80℃; for 8h; Stage #2: With ion exchange water In N,N-dimethyl-formamide at 20℃; for 1h;

Upstream product

• 36396-19-7 4,4'-bis diethylamino diphenyl 4''-monoethylamino 1-naphthyl carbocation 
• 2390-60-5 Victoria Pure Ink Blue BO 

Downstream Products

• 2390-60-5 Victoria Pure Ink Blue BO 

Relevant academic research and scientific papers

A study on equilibrium and kinetics of carbocation-to-carbinol conversion for di- and tri- arylmethane dye cations in aqueous solutions: Relative stabilities of dye carbocations and mechanism of dye carbinol formation

Arylmethane dye cations form a structurally interesting set of stable carbocations. A detailed study on rate-equilibria of carbinol formation from two diarylmethane and nine triarylmethane dye carbocations in aqueous solutions has been carried out using spectrophotometric measurements. The conclusions reached are : (i) The stability order found (auramine O>crystal violet = methyl violet > victoria blue R > victoria pure blue BO = ethyl violet > pararosaniline > brilliant green > malachite green > carbocation form of Michler's hydrol > methyl green), seems to be determined by an interplay of dye carbocation / carbinol conformation and stereoelectronic effects of substituents; and (ii) carbinol formation is general base catalysed and occurs by the rate determining attack of a H2O molecule on the dye carbocation centre via two kinetic pathways one mediated by another H2O molecule and the other by a OH ion.

Carbenium ion-carbinol equilibration for basic triarylmethane dyes: Relative reactivities of dyes in aq. solutions

Equilibria and kinetics of carbenium ion-to-carbinol base reactions for a set of selected basic triarylmethane dyes in aq. buffer solutions of low ionic strength have been measured spectrophotometrically.Relative reactivities of the dyes towards nucleophilic attack by hydroxide ion, on the basis of both equilibrium constant and forward rate constant of the reaction, have been found to follow the same order: malachite green (MG)> brillant green (BG)>> Victoria pure blue BO(VB)> methyl violet (MV) = crystal violet (CV)> ethyl vioet (EV).A fairly good correlation between elec trophilicities of the dyes and ?R+ parameters of their 4-alkylamino substituents has been obtained