| Autor: |
Zhulin, V. M., Kabotyanskaya, E. B., Kel'tseva, M. V., Bogdanov, V. S., Koreshkov, Yu. D. |
| Zdroj: |
Russian Chemical Bulletin; November 1990, Vol. 39 Issue: 11 p2404-2407, 4p |
| Abstrakt: |
A study was carried out on the effect of pressure up to 1400 MPa on the Diels-Alder reaction between furan and methyl acrylate at 20‡C. At atmospheric pressure, the reaction proceeds with 20% yield after two months, while it proceeds at 1400 MPa with 70% yield after 2.5 h. The observed volumetric activation effect (-dVp?) of this reaction decreases relatively slightly with increasing pressure and its value at 0.1 MPa (20 cm3/mole) is markedly less than the change in volume upon reaction (-dV0=29 cm3/mole). The ratio of the endo and exo isomers formed is 2.6 and is independent of the pressure. |
| Databáze: |
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