| Autor: |
Skvortsov, I. M., Astakhova, L. N., Kuz'min, S. N., Evtushenko, I. Ya. |
| Zdroj: |
Chemistry of Heterocyclic Compounds; March 1978, Vol. 14 Issue: 3 p293-297, 5p |
| Abstrakt: |
Reduction of 5-[2-(methoxycarbonyl)ethyl]-1,3-dihydropyrrolizines with lithium aluminum hydride gave 5-(?-hydroxypropyl)-1,2-dihydropyrrolizines (in 70–90% yields), which have intramolecular p-hydrogen bonds in dilute solutions. The parameters of the p-hydrogen bonds were determined in the IR spectra, and their enthalpies were found. The data obtained (??OH 95–99 cm-1, -?H 3.05 kJ·mole-1) show that among compounds with an aliphatic hydroxyl group and a system of p electrons, 5-(?-hydroxypropyl)-1,2-dihydropyrrolizines have some of the strongest intramolecular p-hydrogen bonds. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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