催化烯水化与原始的双胺酸) 氨酸NPN CoII 复合体
Ingrid Popovici1, Yujia Chen1, Sophie Bourcier1
1Laboratoire de Chimie Moléculaire (LCM), CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Route de Saclay, 91120 Palaiseau, France. audrey.auffrant@polytechnique.edu.
一种新型的复合物,其中含有双 (?? 胺) 酸连接体,有效地催化了烯的化. 这种新的催化剂在温和条件下转化简单和复杂的内部基.
科学领域:
- 有机金属化学 有机金属化学
- 催化剂是一种催化剂.
- 合成化学 合成化学
背景情况:
- 双氨酸氨酸氨酸联体具有独特的协调特性.
- 复合物越来越多地被探索为有机转换的催化剂.
- 氨酸化是合成化学中的一个关键反应.
研究的目的:
- 为了合成和表征一种新型的bis (((iminophosphorane) 氨酸NPN配体及其 ((II) 复合物.
- 为了研究的催化活性(II) 复合物在烯酸水化中.
- 为了评估催化剂与各种基底的效率.
主要方法:
- 合成双胺酸) 氨酸NPN连接体.
- 对的连接体的协调 (II).
- 使用多核核核磁共振光谱学和X射线晶体学进行表征.
- 对复合物的催化试验,以测试烯酸的水化.
主要成果:
- 一种新的双胺酸 () 氨酸NPN配体及其 (II) 复合物被成功合成和特征化.
- (II) 复合物表现出高催化活性 (1.5mol%) 在60°C时对烯水化.
- 无论是1-基,还是以固体阻碍的内部基,包括那些基于norbornene骨架的基,都在几个小时内得到了高效的转化.
结论:
- 开发的 (II) 复合物是一种有效的催化剂,用于氨酸的化.
- 催化剂具有广泛的基质范围,可以容纳具有挑战性的内部基.
- 这项工作扩大了NPN配体在催化反应中的实用性.
更多相关视频
11:44Mizoroki-Heck Cross-coupling Reactions Catalyzed by Dichloro{bis[1,1',1''-phosphinetriyltripiperidine]}palladium Under Mild Reaction Conditions
Published on: March 20, 2014
19:58Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions
Published on: July 30, 2017
相关概念视频
Reduction of Alkynes to cis-Alkenes: Catalytic Hydrogenation
Like alkenes, alkynes can be reduced to alkanes in the presence of transition metal catalysts such as Pt, Pd, or Ni. The reaction involves two sequential syn additions of hydrogen via a cis-alkene intermediate.
Olefin Metathesis Polymerization: Overview
Ruthenium-based Grubbs catalyst is the most commonly used catalyst for olefin metathesis polymerization. Grubbs catalyst consists of a...
Radical Substitution: Hydrogenolysis of Alkyl Halides with Tributyltin Hydride
The bonds formed in this reaction are stronger than the bonds broken, making it energetically favorable. The reaction follows a radical chain mechanism similar to radical halogenation reactions,...
Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide
Regioselectivity and Stereochemistry of Hydroboration
Hydroboration proceeds in a concerted fashion with the attack of borane on the π bond, giving a cyclic four-centered transition state. The –BH2 group is bonded to the less substituted carbon and –H to the more substituted carbon. The concerted nature requires the simultaneous addition of –H and –BH2 across the same face of the alkene giving syn stereochemistry.
Hydroboration-Oxidation of Alkenes
