Synthesis by Reversed Phase Transfer Catalysis and Characterization of Naphthol AS-D Pigment
Reversed phase transfer catalysis (RPTC) was applied to synthesize the Naphthol AS-D pigment. This method consists in the transfer of the aryldiazonium cation 4-nitrobenzenediazonium from aqueous medium into the organic phase (nitrobenzene) in the form of a lipophilic ions pair by the catalyst used...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2013/545374 |
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| author | Eleonora Cornelia Crasmareanu Vasile Simulescu Gheorghe Ilia |
| author_facet | Eleonora Cornelia Crasmareanu Vasile Simulescu Gheorghe Ilia |
| author_sort | Eleonora Cornelia Crasmareanu |
| collection | DOAJ |
| description | Reversed phase transfer catalysis (RPTC) was applied to synthesize the Naphthol AS-D pigment. This method consists in the transfer of the aryldiazonium cation 4-nitrobenzenediazonium from aqueous medium into the organic phase (nitrobenzene) in the form of a lipophilic ions pair by the catalyst used (perfluorooctyl potassium sulfonates). In the organic phase the azo-coupling reaction between 4-nitrobenzenediazonium chloride and 3-hydroxy-2-carboxylic acid 2-methyl-anilide (Naphthol AS-D) takes place as coupling component. Using this unconventional method of synthesis, an increase of the reaction rate, combined with a higher purity of the product, was obtained. |
| format | Article |
| id | doaj-art-d624380b6b3d4600b82182a0fb9a2540 |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-d624380b6b3d4600b82182a0fb9a25402025-02-03T01:23:44ZengWileyJournal of Chemistry2090-90632090-90712013-01-01201310.1155/2013/545374545374Synthesis by Reversed Phase Transfer Catalysis and Characterization of Naphthol AS-D PigmentEleonora Cornelia Crasmareanu0Vasile Simulescu1Gheorghe Ilia2Institute of Chemistry Timisoara of the Romanian Academy, 24 Mihai Viteazu Boulevard, 300223 Timisoara, RomaniaInstitute of Chemistry Timisoara of the Romanian Academy, 24 Mihai Viteazu Boulevard, 300223 Timisoara, RomaniaInstitute of Chemistry Timisoara of the Romanian Academy, 24 Mihai Viteazu Boulevard, 300223 Timisoara, RomaniaReversed phase transfer catalysis (RPTC) was applied to synthesize the Naphthol AS-D pigment. This method consists in the transfer of the aryldiazonium cation 4-nitrobenzenediazonium from aqueous medium into the organic phase (nitrobenzene) in the form of a lipophilic ions pair by the catalyst used (perfluorooctyl potassium sulfonates). In the organic phase the azo-coupling reaction between 4-nitrobenzenediazonium chloride and 3-hydroxy-2-carboxylic acid 2-methyl-anilide (Naphthol AS-D) takes place as coupling component. Using this unconventional method of synthesis, an increase of the reaction rate, combined with a higher purity of the product, was obtained.http://dx.doi.org/10.1155/2013/545374 |
| spellingShingle | Eleonora Cornelia Crasmareanu Vasile Simulescu Gheorghe Ilia Synthesis by Reversed Phase Transfer Catalysis and Characterization of Naphthol AS-D Pigment Journal of Chemistry |
| title | Synthesis by Reversed Phase Transfer Catalysis and Characterization of Naphthol AS-D Pigment |
| title_full | Synthesis by Reversed Phase Transfer Catalysis and Characterization of Naphthol AS-D Pigment |
| title_fullStr | Synthesis by Reversed Phase Transfer Catalysis and Characterization of Naphthol AS-D Pigment |
| title_full_unstemmed | Synthesis by Reversed Phase Transfer Catalysis and Characterization of Naphthol AS-D Pigment |
| title_short | Synthesis by Reversed Phase Transfer Catalysis and Characterization of Naphthol AS-D Pigment |
| title_sort | synthesis by reversed phase transfer catalysis and characterization of naphthol as d pigment |
| url | http://dx.doi.org/10.1155/2013/545374 |
| work_keys_str_mv | AT eleonoracorneliacrasmareanu synthesisbyreversedphasetransfercatalysisandcharacterizationofnaphtholasdpigment AT vasilesimulescu synthesisbyreversedphasetransfercatalysisandcharacterizationofnaphtholasdpigment AT gheorgheilia synthesisbyreversedphasetransfercatalysisandcharacterizationofnaphtholasdpigment |