The assignment of the cis and trans configuration of 3,4-dimethyl-6-t-butyl-5,6-dihydro-2H-thiopyran-S-oxides and S-Methyl cations (2a, 2b), made by 13C and 17O NMR, and by force field calculations. It is shown that the preferred conformation of all compounds is the half chair and that a previous configurational assignment of the S-oxides should be reversed.
Conformation and configurational assignment of cis and trans 3,4-dimethyl-6-t-butyl-5,6-dihydro-2H-thiopyran-S-oxides and S-methyl cations
Barbarella G;Zambianchi M;
1991
Abstract
The assignment of the cis and trans configuration of 3,4-dimethyl-6-t-butyl-5,6-dihydro-2H-thiopyran-S-oxides and S-Methyl cations (2a, 2b), made by 13C and 17O NMR, and by force field calculations. It is shown that the preferred conformation of all compounds is the half chair and that a previous configurational assignment of the S-oxides should be reversed.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
