2,2-Dimethylpenta-3,4-dienal derivatives: Preparation, NMR spectra, and crystal structure
作者:R. Marek、M. Potáček、J. Marek、A. De Groot、R. Dommisse
DOI:10.1007/bf00811384
日期:1995.10
The preparation of some new 2,2-dimethylpenta-3,4-dienal derivative's starting by Claisen-Cope rearrangement of the pyrolytic product of the corresponding acetales and followed by condensation reactions is described. The synthesis of homoallenylketone 5 from homoallenylaldehyde 3 by Grignard reaction and followed by the oxidation of the formed alcohol using potassium chlorochromate (KCC) is reported. All new compounds are characterized by IR, MS, H-1, and C-13 NMR spectroscopy. The full assignment of the NMR signals is based on HETCOR and FLOCK pulse sequences. The molecular and crystal structure of 2,2-dimethylhexa-3,4-dienal 2,4-dinitrophenylhydrazone is presented.
Vilsmeier reagent for a high yield conversion of aldoximes to nitriles
作者:Jean-Pierre Dulcere
DOI:10.1016/s0040-4039(01)90387-9
日期:1981.1
Cyclisation d'oximes β-alleniques. Synthese de dihydro-4,7 oxazepines-1,2
作者:Jacques Grimaldi、Antoine Cormons
DOI:10.1016/s0040-4039(00)61938-x
日期:1985.1
Grimaldi,J.; Cormons,A., Comptes Rendus des Seances de l'Academie des Sciences, Serie C: Sciences Chimiques, 1979, vol. 288, p. 557 - 558