Triazine
Triazines are a class of nitrogen-containing
forms, 1,3,5-triazines being common.Structure
The triazines have planar six-membered
Other
Uses
Melamine
A well known triazine is
Cyanuric chloride
Another important triazine is cyanuric chloride (2,4,6-trichloro-1,3,5-triazine). Chlorine-substituted triazines are components of reactive dyes.[2] These compounds react through a chlorine group with hydroxyl groups present in cellulose fibres in nucleophilic substitution, the other triazine positions contain chromophores. Triazine compounds are often used as the basis for various herbicides.
Other
Triazines also have wide use in the oil and gas and petroleum processing industries as a non-regenerating sulfide removal agent; they are applied to fluid streams to remove hydrogen sulfide gas and mercaptan species, which can decrease the quality of the processed hydrocarbon and be harmful to pipeline and facility infrastructure if not removed.[citation needed]
Synthesis
The more common 1,3,5-isomers are prepared by trimerization of nitrile and cyanide compounds, although more specialized methods are known.
The 1,2,3- and 1,2,4-triazines are more specialized methods. The former family of triazines can be synthesized by thermal rearrangement of 2-azidocyclopropenes. Also mainly of specialized interest, the 1,2,4-isomer is prepared from condensation of 1,2-dicarbonyl compounds with amidrazones. A classical synthesis is also the Bamberger triazine synthesis.
Reactions
Although triazines are
Cyanuric chloride assists in the
The 1,2,4-triazines can react with
In 2007, a method for synthesizing highly porous triazine-based polymers was discovered, and found to be useful (in conjunction with palladium) for the selective reduction of phenols.[5][6]
Ligands
A series of 1,2,4-triazine derivatives known as
Triazine-based
References
- ISBN 978-3-527-30673-2.
- ^ Triazine-Promoted Amidation of Various Carboxylic Acids Jeremy Schlarb 1999 Article Archived 2005-03-19 at the Wayback Machine
- ^ "Espacenet - Bibliographic data".
- ^ "Final Report Summary - HYDRA-CHEM (Hydrothermal and Ionothermal Chemistry For Sustainable Materials (HYDRA-CHEM))". Community Research and Development Information Service (CORDIS).
- ^ Geist, Andreas; Michael Weigl; Udo Müllich; Klaus Gompper (2000). "ACTINIDE(III)/LANTHANIDE(III) PARTITIONING USING n-Pr-BTP AS EXTRACTANT: EXTRACTION KINETICS AND EXTRACTION TEST IN A HOLLOW FIBER MODULE" (PDF). 6th Information Exchange Meeting on Actinide and Fission Product Partitioning and Transmutation: 641–647. Retrieved 30 April 2013.
- ^ Hill, C.; D. Guillaneux; X. Hérès; N. Boubals; L. Ramain. "SANEX-BTP PROCESS DEVELOPMENT STUDIES" (PDF). Archived from the original (PDF) on 15 November 2012. Retrieved 30 April 2013.
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(help) - ^ Development Of Electrochemical Separations Of Uranium And Re Elements From Fluoride Melts
- doi:10.1039/B301178J. Retrieved 30 April 2013.
- Heterocyclic Chemistry T.L. Gilchrist 1985 ISBN 0-582-27843-0)
See also
- Hexahydro-1,3,5-triazine
- 6-membered rings with one nitrogen atom: pyridine
- 6-membered rings with two nitrogen atoms: diazines
- 6-membered rings with four nitrogen atoms: tetrazines
- 6-membered rings with five nitrogen atoms: pentazine
- 6-membered rings with six nitrogen atoms: hexazine