Chemical ionization mass spectra of some 2-norbornyl derivatives

✍ Scribed by Barbara L. Jelus; David L. Dalrymple; John Michnowicz; Burnaby Munson

• Publisher: John Wiley and Sons
• Year: 1978
• Tongue: English
• Weight: 390 KB
• Volume: 13
• Category: Article
• ISSN: 1076-5174
• DOI: 10.1002/oms.1210130309

✦ Synopsis

Chemical ionization mass spectra of exo-and endo-2-norbornanols and their phenylnrethane derivatives have been obtained with several reactant ions. Small differences are noted in the abundances of norbornyl and [M+H]' ions for the phenylnrethane derivatives: more norbornyl ions with the ex0 compounds. Relative rate constants for decomposition of [M+H]' ions, kJkend0=1-2. No evidence was found for a-participation in the decomposition of these ions. The I-C,H,, chemical ionization spectrum of endo-2-norbornanol contains a much greater abundance of [M-HI' ions than the CC,H,, chemical ionization spectrum of exo-2norbornanol. This difference presumably results from steric hindrance toward attack of the endo hydrogen.