2,2-Dimethylpenta-3,4-dienal derivatives: Preparation, NMR spectra, and crystal structure
摘要:
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.
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.