Substituent Effects on the <SUP>13</SUP>C and <SUP>1</SUP>H Chemical Shifts of 1-Phenyl-1,3-butadiene and Phenylallene
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概要
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CMR and PMR spectra of <I>trans</I>-1-phenyl-1,3-butadiene (PBD) and phenylallene (PA) and their ring-substituted derivatives (<I>p</I>-CH<SUB>3</SUB>, <I>m</I>-CH<SUB>3</SUB>, <I>p</I>-Cl, and <I>m</I>-Cl) have been measured. The chemical shifts of side-chain carbons and protons were treated with a Hammett-type relationship. The carbon chemical shifts of the side chain gave alternately opposite sign of ρ values while those of PA showed little dependence on the ring substitution. The <SUP>1</SUP>H chemical shifts showed behavior different from that of the <SUP>13</SUP>C shifts. The mode of electron polarization along the side-chain of PBD and PA was discussed to interpret the observations.
- 公益社団法人 日本化学会の論文
著者
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Izawa Kunisuke
Department of Chemistry, Faculty of Engineering Science, Osaka University
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Okuyama Tadashi
Department of Chemistry, Faculty of Engineering Science, Osaka University
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Fueno Takayuki
Department of Chemistry, Faculty of Engineering Science, Osaka University
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