NMR Properties and Synthesis of Ring-methylated 1,4-Dihydronicotinamides and the Corresponding Pyridinium Salts. Correlation of NMR with Ab Initio STO-3G Results
The synthesis of a series of ring-methylated 1-alkyl-1,4-dihydronicotinamides and the corresponding pyridinium salts is described.Their NMR properties involving aromatic-ring-shielding anisotropy, due to ring current effects, are discussed and compared with electron populations calculated from STO-3G results.
Bossaerts, Jan D.,Dommisse, Roger A.,Alderweireldt, Frank C.,Geerlings, Paul
p. 2360 - 2384
(2007/10/02)
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