Month: November 2022

On December 20, 2001, Gross, Wibke; Hoeffkes, Horst; Martin, Hans-Dieter; Moeller, Hinrich; Oberkobusch, Doris published a patent.Quality Control of 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile The title of the patent was Hair dyeing compositions containing quinoxaline derivatives. And the patent contained the following:

Hair dye compositions contain at least one quinoxaline derivative containing e.g., C1-4 alkenyl, hydroxyalkyl, carboxyalkyl groups, and halo groups. Thus, 1,1,3-trimethylcyclo-2-penten[1,2-b]quinozaline-2-carboxaldehyde (I) was prepared in a seies of steps and formulated into a hair dye formulation containing I 4.4, Natrosol 250HR 2.0 and water to 100.0 g. The experimental process involved the reaction of 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile(cas: 2510-01-2).Quality Control of 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile

The Article related to hair dye quinoxaline preparation, Essential Oils and Cosmetics: Hair Preparations and other aspects.Quality Control of 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

On April 26, 2001, Moeller, Hinrich; Oberkobusch, Doris; Hoeffkes, Horst published a patent.Name: 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile The title of the patent was Aromatic aldehydes and ketones with imidazoles as coloring agents for keratin fibers. And the patent contained the following:

Oxidative hair dyes containing aromatic aldehydes and ketones combined with imidazoles and other heterocyclic compounds are disclosed. Aromatic components may include salicylaldehyde, 3-hydroxybenzaldehyde, 4-hydroxybenzaldehyde, o-anisaldehyde, etc. Heterocyclic components may include 1,4-dimethylquinolinium salts, 1,2-dimethylquinolinium salts, 1,4-dimethylpyridinium salts, 3-ethyl-2-methylbenzothiazolium salts, etc. These may be combined with rhodanine, barbituric acid, thiobarbituric acid, oxindole, etc. The experimental process involved the reaction of 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile(cas: 2510-01-2).Name: 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile

The Article related to oxidative hair dye aromatic ketone, Essential Oils and Cosmetics: Hair Preparations and other aspects.Name: 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

On December 20, 2001, Gross, Wibke; Hoeffkes, Horst; Martin, Hans-Dieter; Moeller, Hinrich; Oberkobusch, Doris published a patent.Quality Control of 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile The title of the patent was Hair dyeing compositions containing oxocyclopentenes. And the patent contained the following:

Hair dyes contain oxocyclopentene derivative (I, R1 and R2 = H, or a C1-4 alkyl, R3 and R4 = H, C1-4 alkyl or group of aryls, the remainder of R1 and R2 and/or R3 and R4 can form a ring, and X = C:O, C:S or CH2). Thus, 2,5,5-trimethyl-3-oxocyclopent-1-enecarboxaldehyde (II) was prepared and used in a formulation consisting of II 8, Natrosol 250HR 2.0 and water to 100 g. The experimental process involved the reaction of 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile(cas: 2510-01-2).Quality Control of 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile

The Article related to oxacyclopentene hair dye preparation, Essential Oils and Cosmetics: Hair Preparations and other aspects.Quality Control of 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

On April 24, 2002, Moeller, Hinrich; Meinigke, Bernd published a patent.Application of 2510-01-2 The title of the patent was Hair dye containing nitroxanthene derivatives. And the patent contained the following:

The invention concerns hair dyes that contain nitroxanthene derivatives of the general formula (I); where R1 = H, carboxy-, carboxylato-;, sulfo-, sulfonato-, hydroxy group; R2, R3 = H, halogen, hydroxyl; M = H, alkali, alkali earth atom. The nitroxanthene derivative is preferably C.I. Acid Red 91. The compositions further contain other dyes, surfactants and amino acids. Thus a pinkish red color was achieved by using 5 mmol Acid red 91 and 5 mmol 2,4,5,6-tetraamidopyrimidine x H2SO4 in a pH 6 aqueous medium that further contained 5 mmol sodium acetate, one drop of 20% fatty alkyl ether sulfonate. The experimental process involved the reaction of 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile(cas: 2510-01-2).Application of 2510-01-2

The Article related to hair dye nitroxanthen derivative acid red, Essential Oils and Cosmetics: Hair Preparations and other aspects.Application of 2510-01-2

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

On November 22, 2001, Moeller, Hinrich; Oberkobusch, Doris; Hoeffkes, Horst published a patent.HPLC of Formula: 2510-01-2 The title of the patent was Hair dyes containing derivatives of nitrosopyridine or nitrosopyrimidine. And the patent contained the following:

The invention concerns hair dyes that contain nitrosopyridine or nitrosopyrimidine derivatives of the general formula (I), groups are defined, and a second dye that contains amino or hydroxy groups; the compositions color hair without the addition of oxidative agents. Thus violet red color was achieved by a composition that included 5 mmol 5-nitroso-2,4,6-triaminopyrimidine; 5 mmol 4-formyl-1-methylquinoline-p-toluene sulfate; 5 mmol piperidine, 1 drop of 20% fatty alkyl ether sulfate; 50 mL water; pH to 9 with sodium hydroxide and hydrochloric acid resp. The experimental process involved the reaction of 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile(cas: 2510-01-2).HPLC of Formula: 2510-01-2

The Article related to hair dye nitrosopyridine nitrosopyrimidine, Essential Oils and Cosmetics: Hair Preparations and other aspects.HPLC of Formula: 2510-01-2

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

On April 11, 2002, Moeller, Hinrich; Oberkobusch, Doris; Hoeffkes, Horst published a patent.Synthetic Route of 2510-01-2 The title of the patent was Oxidative hair dyes containing acridine aldehydes and acridine ketones. And the patent contained the following:

The invention concerns the synthesis of acridine aldehyde and acridine ketone derivatives and their application in oxidative hair dyes. Compounds of the general formula (I) are defined, where R1 = hydrogen atom, C1-4-Alkyl or group of aryls; R2, R3, R4 and a R5, same or different = a hydrogen atom, halogen atom, a C1-C4-Alkyl, C1-C4-Hydroxyalkyl, C1-C4-Alkoxy, C1-C4-Hydroxyalkoxy, hydroxy group, nitro group, sulfo group, amino group, which can be substituted by C1-C4-Alkyl, or a C1-C4-Acyl, whereby two of the groups can form a condensed aromatic ring, whereby the groups of COR1, R2, R3, R4 and R5 to any ring of the cyclic system; X- an anion, in particular halide, sulfonate, like benzene sulfonate, p-Toluene sulfonate, methanesulfonate or trifluoro methanesulfonate, Me sulfate, Et sulfate, perchlorate, sulfate, hydrogensulfate, tetrafluoroborate or tetrachlorozincate, alkanoate, whereby X- is absent if R6 is neg. charged; R6 = hydrogen atom, C1-4-Alkyl, C1-C4-Hydroxyalkyl, C1-C6 carboxyalkyl, C1-C6 sulfoalkyl, C1-4-aralkyl, heteroalkyl, neg. charged oxygen. Thus 9-formyl-10-methylacridinium-p-toluene sulfonate was synthesized from acridine-9-carboxaldehyde and p-toluene sulfonic acid Me ester. The product was used in combination with 3-methyl-p-aminophenol to yield a light brown hair color. The experimental process involved the reaction of 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile(cas: 2510-01-2).Synthetic Route of 2510-01-2

The Article related to oxidative hair dye acridine aldehyde ketone, Essential Oils and Cosmetics: Hair Preparations and other aspects.Synthetic Route of 2510-01-2

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

On April 9, 2003, Moeller, Hinrich; Oberkobusch, Doris; Hoeffkes, Horst published a patent.Related Products of 2510-01-2 The title of the patent was Oxidative hair dyes containing dicyanmethylene indane derivatives, other dyes and color intensifiers. And the patent contained the following:

The invention concerns hair dyes that contain dicyanmethylene indane derivatives and optionally substances selected from the group of (a) primary and secondary aromatic amines, hydroxydes, nitrogen-containing heterocycles; (b) amino acids; (c) 2-9 amino acid-containing oligopeptides; (d) CH-acids; (d) aryl or heteroaryl aldehydes or ketones; (f) quaternary ammonium compounds Thus in a hair dyeing experiment 5 mmol 1,3-bis(dicyanmethylene)-indane, 5 mmol 4-dimethylaminobenzaldehyde were mixed with 5 mmol sodium acetate in 50 mL water at 50°C; pH 9 was set and the solution was used to dye hair; intense blue color was obtained. The experimental process involved the reaction of 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile(cas: 2510-01-2).Related Products of 2510-01-2

The Article related to oxidative hair dye dicyanmethylene indane derivative, Essential Oils and Cosmetics: Hair Preparations and other aspects.Related Products of 2510-01-2

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

On April 10, 2003, Moeller, Hinrich; Oberkobusch, Doris published a patent.HPLC of Formula: 2510-01-2 The title of the patent was Hair dyes containing aromatic or heteroaromatic aldehydes and ketones in combination with other dyes and color intensifiers. And the patent contained the following:

The invention concerns hair dyes that contain aromatic or heteroaromatic aldehydes and ketones and 4-aminopyrazoline-5-one derivatives Further components are selected from the group of primary and secondary aromatic amines, hydroxydes, nitrogen-containing heterocycles, amino acids etc. Thus in a dyeing experiment 5 mmol 4-formyl-1-methylpyridinium benzene sulfonate and 5 mmol 4-aminoantipyrine were mixed and pH 6 was set with sodium hydroxide; an intensive gold-yellow color was obtained. The experimental process involved the reaction of 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile(cas: 2510-01-2).HPLC of Formula: 2510-01-2

The Article related to hair dye aromatic heteroaromatic aldehyde ketone aminoantipyrine, Essential Oils and Cosmetics: Hair Preparations and other aspects.HPLC of Formula: 2510-01-2

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

On November 6, 2003, Moeller, Hinrich; Oberkobusch, Doris; Hoeffkes, Horst published a patent.HPLC of Formula: 2510-01-2 The title of the patent was Hair dyes containing isatin derivatives. And the patent contained the following:

The invention concerns hair dyes that contain isatin derivatives and that can be used with or without oxidation agents to color hair; the derivatives are bis-isatin compounds and mols. including isatin coupled to 1H-pyrrol-2,3-dione via an aromatic group. The hair dye compositions can further include dyes that are primary or secondary amines, hydroxydes of aromatic and N-heterocyclic compounds, amino acids and carboxylic acids. Direct dyes can be added; hydrogen peroxide is the used oxidation agent; anionic, zwitterionic and nonionic surfactants are included. Thus 5 mmol (1H,6H)-2,3,7,8-Tetrahydropyrrolo[2’3′: 1,2]-naphtho[5,6-b]pyrrolo-2,3,7,8-tetrone and 5 mmol 3-amino-2-methylamino-6-methyoxypyridine were each suspended in 25 mL water at 50°C. After cooling to 30°C the suspensions were mixed; 5 mmol sodium acetate, one drop of 25 % fatty ether sulfate solution were added and pH 9 was adjusted with diluted sodium hydroxide. The dye mixture was applied to hair; a dark brown color was obtained. The experimental process involved the reaction of 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile(cas: 2510-01-2).HPLC of Formula: 2510-01-2

The Article related to hair dye isatin derivative aromatic n heterocyclic amine hydroxide, Essential Oils and Cosmetics: Hair Preparations and other aspects.HPLC of Formula: 2510-01-2

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

On January 24, 2020, Zhuo, Junrui; Yuan, Weicheng; Zhao, Jianqiang; Quan, Baoxue; Du, Anni; Wang, Keke published a patent.Safety of 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile The title of the patent was Polycyclic heterocyclic compound synthesized using water as medium, its preparation method, and application. And the patent contained the following:

A simple and environmentally-friendly method of preparing a polycyclic heterocyclic compound having improved air-stability, suitability for wide application in photoluminescence materials, drug screening and pharmaceutical industry, and mild reaction conditions is provided. The polycyclic heterocyclic compound is represented by Formula I, where X is O, S, and N-R, Y is H, CH2, OCH2, (CH2)2, (CH2)3, and Ar is alkyl, halogen or aryl-substituted benzene ring, furan ring, thiophene ring, and R1 is hydrogen, alkyl, halogen, and aryl group. The preparation method of the polycyclic heterocyclic compound comprises: using water as a reaction medium and under the regulation of a base, adding dicyanoolefin synthesizer and 2-nitroheteroarom. or 3-nitroheteroarom. hydrocarbon and performing alkali-promoted [4+2] olefin cyclization reaction to obtain the final product. The experimental process involved the reaction of 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile(cas: 2510-01-2).Safety of 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile

The Article related to polycyclic heterocyclic compound synthesis water medium, Heterocyclic Compounds (One Hetero Atom): Furans and other aspects.Safety of 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts