ISSN:
0030-4921
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The configuration and conformation of Z- and E-N-methyl- and -N-benzyl-2-p-nitrophenyl-4,5-, and -5,6-tetramethylenetetrahydro-1,3-oxazines were determined by 1H and 13C NMR spectroscopy. The Z isomers were proved to be conformationally homogeneous, having the heteroatom in axial and equatorial position, respectively, in the case of the 5,6- and 4,5-tetramethylene compounds. Consequently, the p-nitrophenyl group and the anellated cyclohexyl ring are all-cis arranged in the Z-5,6-tetramethylene compounds while in the case of the Z-4,5-tetramethylene isomers the p-nitrophenyl group and the cyclohexyl ring are trans arranged to the hetero ring.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mrc.1270140311
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