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Solid-phase Synthesis of [4.4] Spirocyclic Oximes
Published on: February 6, 2019
分离或循环化:可以选择从氧化碳酸盐中释放的三极激素
Roy T McBurney1, John C Walton
1EaStCHEM School of Chemistry, University of St. Andrews, St. Andrews, Fife KY16 9ST, UK. roy.mcburney@glasgow.ac.uk
Journal of the American Chemical Society
|April 23, 2013
概括
新的氧基碳酸盐是产生氨基基和氨基基基的有效前体. 这些化合物在通过受控的激素反应合成像氨酸这样的复杂分子方面表现有前途.
科学领域:
- 有机化学 有机化学
- 摄影化学的使用.
- 激进化学 激进化学是什么
背景情况:
- 氧基碳酸盐是多用途的有机化合物.
- 了解它们的光解行为对于合成应用至关重要.
研究的目的:
- 为了研究N-基和N,N-二基氧化碳酸盐的光解N-O键同解.
- 探索来自氧基碳酸盐的激素的生成和反应性.
- 评估它们在有机合成中作为胺基和胺基基的前体的有用性.
主要方法:
- 使用碳基二胺醇中间体合成氧化碳酸盐.
- 电子磁共振 (EPR) 谱学用于检测和表征激素.
- 在紫外线照射下进行光解研究.
- 激进循环化反应的动力测量.
主要成果:
- 氧化碳酸盐的紫外线光解导致了清洁的N-O键同解.
- 从乙烯基O-基氧胺中检测出一个稳定的oxazolidin-2-onylmethyl基,证实了N-单替代的基基基的结构完整性.
- N,N- 异位的碳胺基基呈现出快速解离.
- 这两种类型的氧化碳酸盐都作为室温以上的胺基和胺基基的选择性前体.
- 确定了N--N-pent-4-enylaminyl基的5-exo循环化速率参数.
- 从二甲基胺衍生氧化碳酸盐中产生的阿里利米尼尔基因促进了氨酸的合成.
结论:
- 氧基碳酸盐是产生结构多样化的基因的有效前体.
- 这项研究提供了关于carbamoyloxyl,aminil和iminyl基的稳定性和反应性的见解.
- 这些发现为制备异环化合物,如氨酸等提供了新的合成途径.
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