Pregled bibliografske jedinice broj: 82204
The Control of Stereoselectivities in the Diels-Alder Reactions of N-substituted Pyrroles and N-substituted Isoindoles
The Control of Stereoselectivities in the Diels-Alder Reactions of N-substituted Pyrroles and N-substituted Isoindoles, 1998. (ostalo).
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Naslov
The Control of Stereoselectivities in the Diels-Alder Reactions of N-substituted Pyrroles and N-substituted Isoindoles
Autori
Sun, Guangxing ; Butler, Douglas N. ; Warrener, Ronald N. ; Margetić, Davor ; Malpass, John R.
Izvornik
Article 062, Electronic Conference on Heterocyclic Chemistry '98 (ECHET98), Rzepa, H. S. and Kappe, O. (Eds), Imperial College Press, 1998, ISBN-981-02-3549-1; http://www.ch.ic.ac.uk/ectoc/echet98
Vrsta, podvrsta
Ostale vrste radova, ostalo
Godina
1998
Ključne riječi
pyrroles; cycloadditions; norbornenes; AM1; calculations
Sažetak
Pyrrole and its N-substituted derivatives are not recognised as good Diels-Alder dienes and only a small number of cycloadditions involving pyrroles with dienophiles have been reported1-3. In this paper, we report new Diels-Alder reactions of N-acetyl and N-trimethylsilyl pyrroles and N-benzyl-tetra- fluoroisoindole with 7-oxanorbornadienomaleimide ONM 2(R=H) where the addition stereoselectivity is affected by the N-substituents of the pyrrole. Semiempirical (PM3) calculations in support of these findings are also presented along with preliminary results for the additions of the above pyrroles to the related dienophile ONM 2(R=Me).
Izvorni jezik
Engleski
