波谱学杂志 ›› 1999, Vol. 16 ›› Issue (3): 231-236.

• 研究论文 • 上一篇    下一篇

甲酰基及乙酰基吡咯烷、哌啶、吗啡啉的13C NMR谱图研究

薛松1, 陆世维1, 刘秀梅2, 赵琦2   

  1. 1. 中国科学院大连化学物理研究所国家催化工程技术研究中心, 大连 116023;
    2. 中国科学院大连化学物理研究所催化基础国家重点实验室, 大连 116023
  • 收稿日期:1999-02-02 修回日期:1999-03-09 出版日期:1999-06-05 发布日期:2018-01-11
  • 作者简介:薛松,女,27岁,在读硕士

13C NMR STUDIES ON N-FORMYL AND N-ACETYL PYRROLIDINE,PIPERIDINE,MORPHOLINE

Xue Song1, Lu Shiwei1, Liu Xiumei2, Zhao Qi2   

  1. 1. National Engineering Research Center for Catalysis, DICP, The Chinese Academy of Sciences, Dalian 116023;
    2. State Key Laboratory of Catalysis, DICP, The Chinese Academy of Sciences, Dalian 116023
  • Received:1999-02-02 Revised:1999-03-09 Online:1999-06-05 Published:2018-01-11

摘要: 测定了一系列N-甲酰基、N-乙酰基环胺的13C NMR谱,对甲酰基、乙酰基对于环胺上的C原子的影响进行了讨论,影响因素主要在于C-N键的部分双键性,以及基团的空间效应.

关键词: N-甲酰基化合物, N-乙酰基化合物, 吡咯烷, 哌啶, 吗啡啉, 13C NMR, 非等价性, 部分双键性, 空间位阻

Abstract: N-formyl, N-acetyl pyrrolidine, piperdine, morpholine compounds are useful fine chimicals and intermediates. We have studied the substituent effects due to the presence of formyl and acetyl by 13C NMR. The equivalence of the chemical shift of Ca and Ca' and Cb and Cb' is lost because of the restricted rotation of the acetyl or formyl group due to the partial double bond character of the amide C(O)-N bond and steric compression.

Key words: N-formyl compound, N-acetyl compound, Pyrrolidine, Piperdine, Morpholine, Nonequivalence, Partial double bond character, Steric compression