Stereocontrolled regiospecificity of the water loss from trans??sobrerol radical cation upon electron ionization

…, F Ferrario, P Ventura, R Pellegata

Index: Selva, Antonio; Ferrario, Francesco; Ventura, Paolo; Pellegata, Renato Organic Mass Spectrometry, 1987 , vol. 22, p. 523 - 529

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Citation Number: 5

Abstract

Abstract Water loss from frans-sobrerol upon electron impact ionization selectively involves the tertiary OH group, predominantly occurring by a stereocontrolled H-transfer from C (5) position in a rate-determining step process, as proved by 18 O and deuterium labelling. Monomethyl ethers behave accordingly. Ionic structures of the water-loss product or products are investigated by metastable ion and collision activation mass-analysed ion ...