Rh ((II) / Pd ((0) 双催化区域分离的三元基替代
Jie Xu1,2, Zhaoliang Ge2, Kuiling Ding1,2,3
1Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China.
JACS Au
|October 27, 2023
概括
这项研究引入了一种新的三组分反应,用于基替代,使得从简单的原材料使用双催化合成各种α-四元制品.
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:
- 由于区域化学复杂性,区域分离的propargylic替代具有挑战性.
- 合成α-四次性propargylic产品是不发达的,通常需要预先准备的核,限制效率和多样性.
研究的目的:
- 开发一种前所未有的三元基替代反应.
- 从相同的原料中实现功能多样化的α-四分制品的区域选择性合成.
主要方法:
- 采用了一种合过程,涉及迪罗 ((II) 催化碳插入和催化替代.
- 在迪罗/双催化过程中,采用α-乙醇,氨基和propargylic碳酸盐作为基质.
- 研究了二氨酸 (dppf) 和单氨酸 (BuBrettphos) 配体对反应结果的影响.
主要成果:
- 成功实现了三组 propargylic 替代反应.
- 通过一并催化过程,证明了避免双组分副作用的能力.
- 生成的α-四分位1,3-二烯或高区域和化学选择性的propargylated产品.
- 展示了基于连接体选择的可切换产品形成.
结论:
- 开发了一种新且高效的方法来合成各种α-四元基产物.
- 迪罗/双催化系统为区域选择性propargylic替代提供了一个多功能平台.
- 连接物选择对于控制区域化学结果和访问不同产品类型至关重要.
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