铜促进的sp2 C-H 键的硫化
Ly Dieu Tran1, Ilya Popov, Olafs Daugulis
1Department of Chemistry, University of Houston, Houston, Texas 77204-5003, USA.
Journal of the American Chemical Society
|October 30, 2012
概括
一种新的铜催化方法使得使用二硫化试剂在酸和胺衍生物中的C-H键的硫化成为可能. 这种方法还促进了直接的三甲基硫化,扩大了合成的可能性.
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:
- C-H 键功能化是有机合成的关键领域,为复杂分子提供高效的路线.
- 硫化反应引入含硫组,对制药和材料科学很重要.
- 开发用于选择性C-H键功能化的催化方法仍然是一个重大挑战.
研究的目的:
- 开发一种新的辅助辅助的,特定的C-H键的铜催化硫化.
- 使用开发的方法来探索C-H键的直接三甲基硫化.
主要方法:
- 使用二硫化物试剂作为硫源.
- 用铜酸作为催化剂或促进剂.
- 在高温 (90-130°C) 中在DMSO溶剂中进行反应.
主要成果:
- 在酸衍生物中成功实现了β-C-H键的辅助硫化.
- 在zylamine衍生物中证明了 γ-C-H 键的硫化.
- 展示了C-H键的直接三甲基硫化.
结论:
- 开发的铜催化方法为具有挑战性的C-H键的硫化提供了一条有效的途径.
- 该方法具有多功能,可实现一般硫化和直接三甲基硫化.
- 这项工作扩大了C-H功能化和有机硫化合物的合成工具包.
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