Retro diels-alder fragmentation of cyclohexenes and tetralins under electron impact
✍ Scribed by P. Bel; A. Mandelbaum
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- English
- Weight
- 245 KB
- Volume
- 16
- Category
- Article
- ISSN
- 1076-5174
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## Abstract A stereospecific ‘__retro__‐Diels‐Alder’ fragmentation followed by hydrogen migration was found in the mass spectra of imides and phenyl imides of decahydroindacene 4,5‐dicarboxylic acid. The fragmentation involves a one hydrogen atom rearrangement when the charge is retained on the die
## Abstract The electron impact mass spectra of 2‐cyclohexen‐1‐ol and of several of its ^2^H and ^13^C labelled analogues show that the molecular ions lose a methyl radical by a completely different means from the mechanism described previously. Moreover, the retro Diels–Alder reaction also proceed