Results 131 to 140 of about 19,789 (254)

Decolorization of azo dye by ozonation

open access: yes, 2010
Access is limited to UniMAP community.Decolourization and Chemical Oxygen Demand (COD) removal of azo dye solution in different ozonation time and biodegradation processes were evaluated to apply for wastewater treatment containing azo dye.
Suhaida, Mohamed Arshad
core  

Redox‐Active Guanidines

open access: yesChemElectroChem, Volume 13, Issue 12, 17 June 2026.
Redox‐active guanidines, comprising guanidino‐functionalized aromatics (GFAs) and redox‐active urea azines (RAAs), are electron donors and strong Lewis and Brønsted bases that are used in several applications. They act as redox‐active ligands in bistable coordination compounds and as reagents in dehydrogenative coupling reactions and proton‐coupled ...
Hans‐Jörg Himmel
wiley   +1 more source

Poly vinylacetal Azo Dyes. (Polyvinylaminobenzaldehyde Azo Dye).

open access: yesThe Journal of the Society of Chemical Industry, Japan, 1954
Etsuo Minami, Shigeki Kojima
openaire   +2 more sources

Mechanochemical SNAr on Phthalonitriles: Distinct Reactivity and Selectivity in One‐Pot Synthesis for Greener Phthalocyanines

open access: yesChemSusChem, Volume 19, Issue 11, 15 June 2026.
Mechanochemical nucleophilic aromatic substitution enables efficient, reproducible functionalization of phthalonitriles under minimal solvent conditions with high versatility. Integrating this process with solid‐state cyclotetramerization affords metalated and metal‐free phthalocyanines in a streamlined sustainable one‐pot workflow.
Obed Rodriguez‐Perez   +3 more
wiley   +1 more source

In Vitro Biological Activities of Piper corcovadensis C.DC.: Antioxidant, Antineoplastic‐Related and Antibacterial Effects

open access: yesThe FASEB Journal, Volume 40, Issue 11, 15 June 2026.
Piper corcovadensis extract is rich in bioactive compounds with antioxidant potential, capable of decreasing ROS levels; antitumor activity in cutaneous melanoma cells SK‐MEL‐28; and anti‐inflammatory activity, decreasing the expression of IL‐6 and NLPR3 genes and increasing TNF expression, without cytotoxicity to healthy peripheral blood cells (PBMCs).
Bruno Henrique Fontoura   +7 more
wiley   +1 more source

Electrophilic Iodination of Heterocyclic Compounds. Recent Advances 2008–2025: Part II

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 22, 9 June 2026.
Electrophilic iodination using molecular iodine and iodide sources represents an efficient approach for accessing valuable iodinated organic compounds. This review highlights recent advances in the iodination of heterocyclic compounds from 2008 to 2025, emphasizing the role of heteroaryl iodides as important synthetic intermediates for biologically ...
Njomza Ajvazi, Stojan Stavber
wiley   +1 more source

Design, synthesis and spectroscopic characterisation of novel azo dyes incorporating benzimidazole moiety

open access: yesDiscover Chemistry
This study describes the design, synthesis and characterisation of benzimidazole-derived azo dyes. Ten novel azo acid dyes were synthesized from benzimidazole derivatives using H-acid, Gamma acid, J-acid and Tobias acid as the coupling components.
Ibrahim O. Issa, A. Giwa, U. S. Ameuru
doaj   +1 more source

Microbial degradation of azo dye by application of laccase

open access: yes
Azo dyes, which are synthetic dyes, are used commonly in many industries such as textile, paper, leather, and cosmetics. Azo dyes are the most widely used ones among the all dyes in various industries and constitute more than 60% of the total dyes used ...
Güneş, Elçin   +3 more
core   +1 more source

A Three-Step Synthesis of Azo Dye

open access: yes, 2015
Organol brown azo dye was synthesized and altered with functional group conversions to see the effect it would have on its color. This allowed for the testing of what reactions can be used to create new variations of azo dyes.
Reilly, Meghan E   +2 more
core   +1 more source

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