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1‐Oxoniaadamantane
Author(s) -
Etzkorn Markus,
Aniszfeld Robert,
Li Tiejun,
Buchholz Herwig,
Rasul Golam,
Prakash G. K. Surya,
Olah George A.
Publication year - 2008
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.200800530
Subject(s) - chemistry , bicyclic molecule , ion , crystal structure , nuclear magnetic resonance spectroscopy , ionization , spectroscopy , crystallography , stereochemistry , organic chemistry , physics , quantum mechanics
The missing member of the heteroadamantane series, 1‐oxoniaadamantane ( 4a ), was prepared by the ionization of suitable bicyclic precursors under strongly acidic conditions. The ion 4a was characterized by 1 H and 13 C NMR spectroscopy. The X‐ray crystal structure of ion 4a was also obtained with a CB 11 H 6 Cl 6 counter anion. DFT calculations were performed on 1‐elementaadamantane cations for comparison. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)