((II) - 催化形式 [3+2] 循环添加物在内部和捐赠者-接受者循环烯之间
Víctor Quezada1, Mariña Castroagudín1, Felipe Verdugo2
1Departamento de Química, Facultad de Ciencias, Universidad Católica del Norte, Avda. Angamos 0610, Antofagasta 1270709, Chile.
Molecules (Basel, Switzerland)
|April 13, 2024
概括
这项研究引入了一种新的催化反应,用于从和中合成环[b]双. 这种高效的方法产生了具有高选择性的有价值的含化合物.
科学领域:
- 有机化学 有机化学
- 催化剂是一种催化剂.
- 合成方法论 合成方法论
背景情况:
- 合的印度林是药物化学中的重要支架.
- 有效的合成路径到环[b]双是有限的.
- 催化为C-C和C-N键形成提供了独特的反应性.
研究的目的:
- 开发一种新的催化 [3+2] 循环添加反应.
- 从N替代的醇和捐赠者-接受者烯合成环[b]醇.
- 为了研究反应机制和范围.
主要方法:
- 催化形式 [3+2] 循环添加.
- 反应条件 (催化剂,溶剂,温度) 的优化.
- 用各种英多尔和环烯基的基质范围评估.
- 使用ESI-MS和X射线晶体学进行机制研究.
主要成果:
- 开发了一个区域和散列选择形式的 [3+2] 循环加法.
- 获得高达93%的收益率,具有高的异构选择性 (dr 8.6:1) 和区域选择性.
- 证明了广泛的基质范围,具有多种醇和环烯.
- 合成了6种新的环[b]双,并分离了5种已知的衍生物.
- 在Ni (II) 催化过程中确定了反应性中间体.
- 通过X射线结晶学证实了产品结构和立体化学.
结论:
- 建立了一种高效和通用的方法来构建合的工业线.
- 反应提供了快速获取有价值的环[b]结合物支架.
- 该方法适用于从可访问的原料中合成复杂的含异环.
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