Conformation of hindered piperidines: Spectroscopic evidence for contribution of boat conformations
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چکیده
منابع مشابه
Interconversion of carbon sites in boat-chair-boat cyclodecane; conformations of chlorocyclodecane and cyclodecyl acetate.
Interconversion of carbon sites in boat-chair-boat (BCB) cyclodecane occurs by way of the twist-boat-chair (TBC) conformation, which predicts that C-1 exchanges with C-4, etc. The previously obtained low-temperature 13C spectra could be matched by assuming (1,4) or (1,3) exchange, but not (1,2) exchange. A free-energy barrier of 5.54 kcal/mol was obtained for conversion of BCB to TBC at -137.4 ...
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ژورنال
عنوان ژورنال: Journal of Chemical Sciences
سال: 2010
ISSN: 0974-3626,0973-7103
DOI: 10.1007/s12039-010-0092-x