Effects of annulation on the mass spectral behaviour of monosubstituted bicyclo[4.3.0]-3-nonenes and bicyclo[4.3.0]-3,7-nonadienes

✍ Scribed by František Tureček; Vladimir Hanuš

• Publisher: John Wiley and Sons
• Year: 1978
• Tongue: English
• Weight: 566 KB
• Volume: 13
• Category: Article
• ISSN: 1076-5174
• DOI: 10.1002/oms.1210131004

✦ Synopsis

Abstract

The mass spectra of the title compounds differ considerably depending on the annulation of the bicyclic skeleton. For a series of alkyl derivatives the cis‐annulated compounds show a higher abundance of the products due to the retro Diels‐Alder cleavage than the corresponding trans isomers. The cis‐annulated esters and alcohols lose a molecule of ethanol and water, respectively, more easily than the corresponding trans isomers. Effects of conformation and configuration are discussed.