Synthesis of Phosphonates with Identical and Different Alkyl Groups by the Microwave-Assisted Alkylation of Phosphonic Ester-Acid Derivatives.
Chempluschem
; 88(2): e202200342, 2023 Feb.
Article
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| MEDLINE
| ID: mdl-36420946
ABSTRACT
Monoalkyl phosphonic derivatives obtained by the microwave (MW)- and ionic liquid-promoted direct esterification of alkylphosphonic acids were converted to the corresponding dialkyl alkylphosphonates on reaction with alkyl halides in the presence of triethylamine, under solvent-free MW-assisted conditions. Derivatives with different alkoxy groups were also synthesized. A minor "disproportionation" side reaction was identified during the preparation of dialkyl alkylphosphonates with different alkoxy groups. All together 12 alkylphosphonates were prepared by the efficient method developed.
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MEDLINE
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Chempluschem
Año:
2023
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Article
País de afiliación:
Hungria