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Beitrag zur massenspektrometrischen retro-Diels-Alder-Reaktion: 1,2,3,4-Tetrahydrophenanthren. 35. Mitteilung über massenspektrometrische Untersuchungen

✍ Scribed by Sonja Huggenberg; Manfred Hesse

Publisher
John Wiley and Sons
Year
1980
Tongue
German
Weight
452 KB
Volume
63
Category
Article
ISSN
0018-019X

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✦ Synopsis

Contribution to the Mass Spectral retro‐Diels‐Alder Reaction: 1,2,3,4‐Tetrahydrophenanthrene

[1,4‐^13^C]‐1,2,3,4‐Tetrahydrophenanthrene (1) was synthesized starting from [1,4‐^13^C]‐succinic acid. The mass spectral behavior (EI./MS., 70eV) of 1 is very similar to that of tetraline [2] concerning its loss of ethylene from the molecular ion. Similarly the fragmentation reaction of the synthetic precursors, ketones 7 and 8, seems to partly undergo a carbon rearrangement reaction prior to the elimination of ethylene which is unlike to the behavior of α‐tetralone.

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