作者:J. M. A. Al-Rawi、M. A. R. Khayat
DOI:10.1002/mrc.1260270203
日期:1989.2
o-Benzenediazonium carboxylates couple with methylene-active compounds to yield hydrazo derivatives with high purity. The 1H and 13C NMR data of eleven such products are presented and analysed. The predominance of the hydrazo over the azo form is consistent with accepted criteria. Furthermore, evidence for the preference of the carbethoxy group over the acetyl group for intramolecular hydrogen bonding is suggested.
邻苯二氮羧酸盐与亚甲基活性化合物偶联生成高纯度的联氮衍生物。本文展示并分析了 11 种此类产品的 1H 和 13C NMR 数据。与偶氮形式相比,水合形式占优势,这符合公认的标准。此外,还有证据表明,在分子内氢键作用中,碳乙氧基基团比乙酰基基团更受青睐。