13C NMR spectroscopic studies of the behaviors of carbonyl compounds in various solutions

被引：9

作者：

Hiraga, Yoshikazu ^{[1
]}

Chaki, Saori ^{[1
]}

Niwayama, Satomi ^{[2
]}

机构：

[1] Hiroshima Inst Technol, Fac Life Sci, Saeki Ku, 2-1-1 Miyake, Hiroshima, Hiroshima 7315193, Japan

[2] Muroran Inst Technol, Grad Sch Engn, 27-1 Mizumoto Cho, Muroran, Hokkaido 0508585, Japan

来源：

TETRAHEDRON LETTERS | 2017年 / 58卷 / 50期

关键词：

C-13 NMR spectroscopy; Carbonyl compounds; Solvent polarity; Hydrogen bonding; Dipole interaction; CHEMICAL-SHIFT; SOLVENT; ACETONE; POLAR;

D O I：

10.1016/j.tetlet.2017.10.071

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

C-13 NMR spectroscopic studies were performed for carbonyl compounds having a hydroxyl group, a carboalkoxy group, an acetoxy group, or a carboxyl group in various solvents with different polarities for observation of their behaviors of C-13 NMR chemical shifts of carbonyl carbons in solutions. It was found that the chemical shifts of the carbonyl carbons in C-13 NMR have good correlation with the empirical parameter for solvent polarities, al, depending on the structures. Inter-or intramolecular hydrogen bonding and dipolar-dipolar interactions appear to play a key role in this observation. (C) 2017 Elsevier Ltd. All rights reserved.

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页码：4677 / 4681

页数：5

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