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Carbon-13 NMR studies of primary amines and their corresponding 2,4,6-trimethyl-pyridinium salts

✍ Scribed by Alexandru T. Balaban; Antonie Dinculescu; José Elguero; Robert Faure


Book ID
102950015
Publisher
John Wiley and Sons
Year
1985
Tongue
English
Weight
509 KB
Volume
23
Category
Article
ISSN
0749-1581

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✦ Synopsis


The "C NMR chemical shifts of 37 N-substituted 2,4,6-trimethylpyridiniun (TMP) salts with alkyl, aralkyl, aryl and heteroaryl N-substituents are reported and discussed in comparison with those of the corresponding primary amines RNHz.


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H and 13C NMR chemical shifts of a series of 1 -substituted pyridinium salts were measured in dimethyl sulfoxide. The effect of the quaternary pyridinium ring on the resonance of the methylene group of the substituent is reported. Increments of 6'H = 3.89 f 0.1 6 ppm and 6' 3C = 47.5 f 3.7 ppm are e