molecular formula C6H9ClN2 B8782445 Benzene-o-diamine monohydrochloride CAS No. 39145-59-0

Benzene-o-diamine monohydrochloride

Número de catálogo: B8782445
Número CAS: 39145-59-0
Peso molecular: 144.60 g/mol
Clave InChI: GNNALEGJVYVIIH-UHFFFAOYSA-N
Atención: Solo para uso de investigación. No para uso humano o veterinario.
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Descripción

Benzene-o-diamine monohydrochloride is a useful research compound. Its molecular formula is C6H9ClN2 and its molecular weight is 144.60 g/mol. The purity is usually 95%.
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Aplicaciones Científicas De Investigación

Common Synthetic Routes

  • Hydrochlorination of o-Phenylenediamine : This method involves treating o-phenylenediamine with hydrochloric acid to yield the monohydrochloride salt.
  • Condensation Reactions : Benzene-o-diamine can react with various aldehydes and ketones to form valuable organic compounds such as benzimidazoles, which are important in medicinal chemistry.

Organic Synthesis

Benzene-o-diamine monohydrochloride serves as a versatile building block in organic synthesis. It participates in various condensation reactions leading to the formation of complex molecules.

  • Benzimidazole Derivatives : It condenses with carboxylic acids to produce benzimidazole derivatives, which have applications in drug development and agrochemicals .
Reaction TypeProductApplication
Condensation with carboxylic acidsBenzimidazolesPharmaceuticals
Reaction with aldehydes2-substituted benzimidazolesAnticancer agents

Pharmaceutical Applications

This compound is crucial in the pharmaceutical industry for synthesizing various drugs. Its derivatives exhibit a range of biological activities including:

  • Anticancer Properties : Compounds derived from benzene-o-diamine have shown potential in inhibiting cancer cell proliferation .
  • Antimicrobial Activity : Certain derivatives demonstrate significant antimicrobial effects against bacteria and fungi, making them candidates for developing new antibiotics.

Dye Manufacturing

The compound is also utilized in the dye industry due to its ability to form colored complexes with metals. It is particularly effective in producing azo dyes, which are widely used in textiles.

Case Study 1: Anticancer Activity

A study evaluated the anticancer properties of benzene-o-diamine derivatives against various cancer cell lines. The results indicated that specific derivatives inhibited cell growth significantly:

  • Cell Lines Tested : A549 (lung adenocarcinoma), C6 (rat glioma).
  • Inhibition Rates : Some derivatives achieved over 70% inhibition at specific concentrations.

Case Study 2: Antimicrobial Efficacy

Research focused on the incorporation of benzene-o-diamine derivatives into polymer matrices for dental applications showed promising results:

  • Microbial Strains Tested : Candida albicans.
  • Concentration Levels : Formulations containing 3% and 5% of the compound led to a reduction of fungal colonies by up to 3 log units compared to control groups.

Propiedades

Número CAS

39145-59-0

Fórmula molecular

C6H9ClN2

Peso molecular

144.60 g/mol

Nombre IUPAC

benzene-1,2-diamine;hydrochloride

InChI

InChI=1S/C6H8N2.ClH/c7-5-3-1-2-4-6(5)8;/h1-4H,7-8H2;1H

Clave InChI

GNNALEGJVYVIIH-UHFFFAOYSA-N

SMILES canónico

C1=CC=C(C(=C1)N)N.Cl

Origen del producto

United States

Synthesis routes and methods

Procedure details

In a preferred embodiment, to a suitable reaction vessel is charged water containing trace amounts of ascorbic acid, an antioxidant, and ethylenediaminetetraacetic acid (EDTA), a metal deactivator. Because o-phenylene-diamine is sensitive to dissolved oxygen in solvents, ascorbic acid which functions as an oxidation inhibitor is added prior to o-phenylenediamine. EDTA, which complexes with metals is also added and prevents metal oxidation of o-phenylenediamine. The system is purged with nitrogen to remove air and a nitrogen blanket is maintained for the duration of the reaction. The aqueous solution is heated using an oil bath, and when the pot temperature reaches 95° C., o-phenylenediamine is added. Since water deoxygenates on heating, o-phenylene-iamine is added to a heated reaction medium with less dissolved oxygen present to react with o-phenylenediamine. Hydrochloric acid is added in a controlled manner to adjust the pH of the reaction mixture to a desired level and the amount used is recorded. An exothermic acid-base reaction occurs and o-phenylenediamine monohydrochloride salt is formed. A stoichiometric amount of 4-cyanothiazole is charged to the reaction vessel. Following addition of 4-cyanothiazole, the reaction mixture is heated to reflux (103°-104° C.). During the reaction, the pH is maintained within +/-0.2 of the desired level by periodic addition of concentrated hydrochloric acid. Since thiabendazole is only slightly soluble in water, the product precipitates as it is formed in the reaction mixture. The reaction is monitored by gas chromatography and determined to be complete when the peaks corresponding to o-phenylenediamine and 4-cyanothiazole are negligible. Upon completion of the reaction, the reaction mass is cooled to 50° C. A sufficient amount of 50° C. deionized water is added to dilute the reaction mass and the solid product is separated from the mother liquor by vacuum filtration. The filtered cake is washed with portions of fresh deionized water until the filtrate gives a negative test for chloride ion using AgNO3 solution which indicates the ammonium chloride coproduct is removed. The solid thiabendazole product is dried in a vacuum oven under 15-20" Hg and at a temperature of 80°-90° C.
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