Microwave-assisted alcoholysis of dialkyl phosphites by ethylene glycol and ethanolamine

György Keglevich, Erika Bálint, Ádám Tajti, Béla Mátravölgyi, György Tibor Balogh, Mária Bálint, Gheorghe Ilia

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8 Citations (Scopus)

Abstract

A study on the microwave-assisted alcoholysis of diethyl phosphite with ethylene glycol revealed that after optimization of the conditions (molar ratio, temperature and time), the target "monomer,"(HOCH2CH2O)2P(O)H was formed in a proportion of 59%, but with an incomplete conversion. The formation of the (HOCH2CH2O)(EtO)P(O)H and H(EtO)(O)POCH2CH2OP(O)(OEt)H by-products was, in most cases, inevitable. The alcoholysis with ethanolamine was more efficient and took place in a conversion of 100% to afford H2NCH2CH2O)2P(O)H in a proportion of 85%. An alkyl substituent on the N-atom prevented the alcoholysis.

Original languageEnglish
Pages (from-to)1723-1728
Number of pages6
JournalPure and Applied Chemistry
Volume86
Issue number11
DOIs
Publication statusPublished - Nov 1 2014

Keywords

  • Alcoholysis
  • Bisfunctionalized P-monomers
  • Diethyl phosphite
  • H-phosphonate
  • Microwave
  • POC-2014
  • Transesterification

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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    Keglevich, G., Bálint, E., Tajti, Á., Mátravölgyi, B., Balogh, G. T., Bálint, M., & Ilia, G. (2014). Microwave-assisted alcoholysis of dialkyl phosphites by ethylene glycol and ethanolamine. Pure and Applied Chemistry, 86(11), 1723-1728. https://doi.org/10.1515/pac-2014-0601