| Autor: |
Egorochkin, A., Margorskaya, O., Skobeleva, S., Medvedeva, A., Borisova, A., Vyazankin, N. |
| Zdroj: |
Bulletin of the Academy of Sciences of The USSR, Division of Chemical Science; 1986, Vol. 35 Issue 8, p1623-1626, 4p |
| Abstrakt: |
The donors-acceptor properties of propynals RMC≡CCHO and carbinols RMC≡CCHOH (M = C, Ge, Si) in H complexes with phenol and tetrahydrofuran were studied by the IR spectroscopy method. It was found that the RMC≡C fragment in these compounds has an electronacceptor affect. It was shown that the basicity of the aldehydes and the acidity of the corresponding alcohols depend on the nature of the substituents at the triple bond. The electron-donor capacity of the C=O bond of the propynals decreases (the electron-acceptor properties of the OH group of carbinols increase) in the following order: n-Bu- t-Bu > EtGe > EtSi > MeSi. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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