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- Title
Microwave-assisted alcoholysis of dialkyl phosphites by ethylene glycol and ethanolamine.
- Authors
Keglevich, György; Bálint, Erika; Tajti, Ádám; Mátravölgyi, Béla; Balogh, György Tibor; Bálint, Mária; Ilia, Gheorghe
- 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.
- Subjects
ALCOHOLYSIS; ETHYLENE; ETHYLENE glycol; THERMISTORS; THERMAL properties
- Publication
Pure & Applied Chemistry, 2014, Vol 86, Issue 11, p1723
- ISSN
0033-4545
- Publication type
Article
- DOI
10.1515/pac-2014-0601