NMR studies of picolyl-type carbanions. IV. Anions produced by reactions of 2-substituted pyridines with butyllithium.
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概要
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The <SUP>13</SUP>C and <SUP>1</SUP>H NMR spectra of 2-pyridylmethyl (α-picolyl), 2-pyridylamino, 2-pyridyloxy, and 2-pyridylthio anions were observed in polar solvents with lithium as a counter ion. The chemical shifts are compared with the electron densities calculated using the PPP and CNDO/2 MO methods. A linear relationship was obtained between the <SUP>13</SUP>C chemical shifts and π-electron densities. The charge distributions on the anions are discussed, and it is found that the 2-pyridylamino anion and its methyl derivatives can be regarded as delocalized anions with the same significance as a series of picolyl anions.
- 公益社団法人 日本化学会の論文
著者
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Takahashi Kensuke
Department Of Applied Chemistry Nagoya Institute Of Technology
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Konishi Kazuyori
The Industrial Technology Center of Mie Prefecture
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