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Asymmetrically Substituted s-Triazine Phosphonates by One-Step Synthesis.

ABSTRACT: Asymmetrically substituted s-triazine phosphonates with up to three different phosphonate groups C₃ N₃ RR'R" with R, R', R"=PO(OR"') and R"'=for example, methyl, ethyl, isopropyl or n-butyl are interesting as polymer additives like flame retardants. Typically, these compounds are obtained by multiple synthesis steps. However, this leads to high production costs, which are a disadvantage for commercial use. Here we report the one-step synthesis of mixtures of asymmetrical s-triazine phosphonates which is an easy way to adjust the thermal behaviour and other properties such as viscosities of the compounds. The synthesis is based on a Michaelis-Arbuzov reaction. A complete conversion of the reactants to the target compounds is observed which was proofed by detailed ¹ H, ¹³ C and ³¹ P NMR investigations and elemental analysis. The thermal behaviour was compared with thermogravimetric analysis (TGA).

SUBMITTER: Vogt C

PROVIDER: S-EPMC10509391 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature

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Asymmetrically Substituted s-Triazine Phosphonates by One-Step Synthesis.

Vogt Claudia C Höhne Carl-Christoph CC Limburger Jennifer J König Alexander A Wagener Tobias T Kroke Edwin E

ChemistryOpen 20230901 9

Asymmetrically substituted s-triazine phosphonates with up to three different phosphonate groups C<sub>3</sub> N<sub>3</sub> RR'R" with R, R', R"=PO(OR"') and R"'=for example, methyl, ethyl, isopropyl or n-butyl are interesting as polymer additives like flame retardants. Typically, these compounds are obtained by multiple synthesis steps. However, this leads to high production costs, which are a disadvantage for commercial use. Here we report the one-step synthesis of mixtures of asymmetrical s- ...[more]

PMID: 37726925

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