作者:Stefano Chimichi、Piero Tedeschi、Rodolfo Nesi、Fabio Ponticelli
DOI:10.1002/mrc.1260230207
日期:1985.2
The 13C NMR spectra of oxazolopyridine systems are discussed, and a simple method for distinguishing between 2‐methyloxazolo‐ and 3‐methylisoxazolo‐pyridines is suggested, based on the chemical shift of the methyl group. The effect of the 2‐methyloxazole fusion on the pyridine ring is comparable to that of 3‐methylisoxazole, judging by 1J(CH) values determined from line splittings.
讨论了恶唑并吡啶系统的 13C NMR 光谱,并提出了一种基于甲基的化学位移来区分 2-甲基恶唑并和 3-甲基异恶唑并吡啶的简单方法。根据线分裂确定的 1J(CH) 值判断,2-甲基恶唑融合对吡啶环的影响与 3-甲基异恶唑的影响相当。