(II) - 催化异的C-H取消的Propargyl循环碳酸盐
Debasish Jana1, Geetanjali S Sontakke1, Chandra M R Volla1
1Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
((II) 催化无效的propargyl循环碳酸盐与arylpyrazolidinones选择性地通过C-H激活产生异循环. 反应条件控制路径分歧,允许访问多种 (4+3) 或 (3+2) 无效产品.
科学领域:
- 有机化学 有机化学
- 催化剂是一种催化剂.
- 异环化学 异环化学
背景情况:
- C-H激活是形成C-C和C-异原子键的强大工具.
- 含的异环在药品和材料中普遍存在.
- 开发用于复杂异环合成的选择性催化方法仍然是一个挑战.
研究的目的:
- 开发一个由Ru (II) 催化的分歧取消策略.
- 为了合成 (4+3) 和 (3+2) 从propargyl循环碳酸盐和arylpyrazolidinones.
- 探索反应条件对区域选择性和途径分歧的影响.
主要方法:
- ((II) 催化废除反应. ((II) 催化废除反应.
- C-H 债券激活策略. 债券激活策略.
- 优化基和溶剂条件 (例如,DCM中的AgOAc与托洛中的NaOAc).
主要成果:
- 实现了 (4+3) 或 (3+2) 结合式异循环的选择性合成.
- 通过和溶剂组合控制的分离反应路径.
- 展示了广泛的基质范围和出色的功能组耐受性.
- 在所有取消反应中观察到高区域选择性.
结论:
- 建立了一个新的Ru(II) 催化型与propargyl循环碳酸盐与arylpyrazolidinones的分离无效.
- 该方法提供了易于访问有价值的含异环,具有受控的区域选择性.
- 通过后期修改和格拉姆尺度合成来证明合成效用.
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