Hammett Correlations of Carbonyl ~(13)C Chemical Shifts in a Series of N-(4-Substituted Phenyl)-6-Chloro-5-Fluoronicotinamides

Frank L. Setliff; John W. Hawley; Alan D. Toland

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Hammett Correlations of Carbonyl ~(13)C Chemical Shifts in a Series of N-(4-Substituted Phenyl)-6-Chloro-5-Fluoronicotinamides

机译：一系列N-（4-取代的苯基）-6-氯-5-氟烟碱酰胺中羰基〜（13）C化学位移的Hammett相关性

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A series of nine N-(4-substituted phenyl)-6-chloro-5- f luoronicotinamides exhibited excellent correlations of their car-bonyl ~(13)C shifts (δ_(CO), ppm as measured in DMSO) with the standard Hammett substituent constants (σ_R)) of the sub-stituent in the 4-position. The linear relationship was defined by the equation δ_(CO) = 1.22 σ_R + 161.50 with a correlation coefficient of 0.98. The transmission of electronic effects exerted by two substituent was shown to be additive.

机译：一系列九种N-（4-取代的苯基）-6-氯-5-氟代烟酰胺显示出它们的羰基〜（13）C位移（在DMSO中测得的δ_（CO），ppm）与标准品的极好的相关性4位取代基的哈米特取代基常数（σ_R）。线性关系由方程δ_（CO）= 1.22σ_R+ 161.50定义，相关系数为0.98。由两个取代基施加的电子效应的传递被证明是加和的。

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《Proceedings of the Arkansas Academy of Science》 |1995年第1995期|p.166-168|共3页
作者
Frank L. Setliff; John W. Hawley; Alan D. Toland;
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Department of Chemistry University of Arkansas at Little Rock Little Rock, AR 72204;

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正文语种 eng
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Hammett Correlations of Carbonyl ~(13)C Chemical Shifts in a Series of N-(4-Substituted Phenyl)-6-Chloro-5-Fluoronicotinamides

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