Nuclear magnetic resonance of 1-methylimidazole methiodide. Correction
Nuclear magnetic resonance of 1-methylimidazole methiodide. Correction
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DOI:
10.1021/jo01271a083
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发表时间:
1968-07
影响因子:
3.6
通讯作者:
Friedrich Caesar;C. Overberger
中科院分区:
文献类型:
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作者:
Friedrich Caesar;C. Overberger
In the course of our studies in imidazoles, we reinvestigated the nmr spectrum of 1-methylimida-zole methiodide (1), which hadbeen reported in 1965.1 In contrastto the earlier paper, we have now found that the aromatic protons at C-4 and C-5 absorb at a lower field (H-2, 1, 22 ppm, s, broad; H-4, 5, r 2.47 ppm, d, J= 1.7 Hz; in water, DSS= 10) than in 1-methyl-