Nuclear magnetic resonance studies on the configurations and conformations of heterocyclic nitrosamines
1968 ◽
Vol 46
(17)
◽
pp. 2827-2833
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Keyword(s):
The nuclear magnetic resonance spectra of various heterocyclic nitrosamines were studied in solution. A qualitative view of the long-range diamagnetic effects of a nitrosamino group is advanced and correlated with the chemical shifts of α-equatorial protons and the methyl group in those nitrosamines possessing a preferred conformation or a rigid system. The use of this correlation to decide the configuration and conformation of heterocyclic nitrosamines is discussed. A large chemical shift difference (ca. 3 p.p.m.) between a cis α-axial and a cis α-equatorial proton was noted.
1965 ◽
Vol 20
(2)
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pp. 104-109
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1970 ◽
Vol 25
(11)
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pp. 1199-1214
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1973 ◽
Vol 51
(14)
◽
pp. 2315-2322
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1961 ◽
Vol 83
(9)
◽
pp. 2045-2049
◽
1967 ◽
Vol 89
(3)
◽
pp. 706-707
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