| Autor: |
Petrus, Rafał, Utko, Józef, Petrus, Joanna, Awashra, Mohammad, Lis, Tadeusz |
| Předmět: |
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| Zdroj: |
Dalton Transactions: An International Journal of Inorganic Chemistry; 3/14/2022, Vol. 51 Issue 10, p4135-4152, 18p |
| Abstrakt: |
In this work, group 13 metal aryloxides [Al(MesalO)3] (1), [Me2Ga(MesalO)]2 (2), [AlLi3(MesalO)6] (3) and [Me2GaLi(MesalO)2(THF)] (4) were obtained by the reaction of methyl salicylate (MesalOH) with group-13 alkyls MMe3 (for M = Al, Ga) or their combination with BuLi in a THF/alcohol solution. The direct reaction of MMe3 (for M = Al, Ga) and MesalOH (1 : 3) led to compound 1 or 2, respectively. When the same reactions were carried out with additional BuLi, the heterometallic compound 3 or the mixture of 4 and [Li6(MesalO)6] (5) was obtained. Compounds 1–5 were used for the chemical conversion of glycerol to α-hydroxy acid glyceryl esters by alcoholysis of L -lactide (L -LA), glycolide (GA), and ε-caprolactone (ε-CL). Compounds 1–5 were also efficient initiators for the ring-opening polymerization (ROP) of L -LA, GA, and ε-CL using glycerol as a branching agent to synthesize 3-arm polyesters. Heterometallic compounds 3 and 4 were attractive molecular precursors for the preparation of group 13-lithium ceramics, i.e. γ-LiAlO2 and β-LiGaO2. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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