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Activation of reducing agents. Sodium hydride containing “Complex reducing agents” V Some properties of FeCl3 complex reducing agents (FeCRA)

✍ Scribed by J.J Brunet; P Caubere

Publisher
Elsevier Science
Year
1977
Tongue
French
Weight
257 KB
Volume
18
Category
Article
ISSN
0040-4039

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✦ Synopsis

Since a few years, considerable attention has been devoted to the study of reducing agents which consist of mixtures of transition metal salts and metal hydrides*. When we started our works on this subject, sodium hydride had scarcely been used for the preparation of this kind of reagents. In previous publications, we showed that NaH-RONa%& systems, designated Complex Reducing Agents (abbreviated CRA), are new useful tools for the reduction of halides 334 , ketones, alkenes and alkynes5.

Current investigations in our laboratory pointed out6 that FeC13 was one of the transition metal salts which give active CRA for the reduction of organic halides. On the other hand, FUJISAWA, SUGIMYIC and OHTA reported that FeCq, and principally FeC12, in the presence of NaH, provide effective systems for the reduction of carbony17 as well as ethylenic or acety-

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Activation of reducing agents. Sodium hy
Activation of reducing agents. Sodium hydride containing complex reducing agents 22. New coupling reaction with “nickel doped” complex reducing agent.
✍ Régis Vanderesse; Yves Fort; Sandrine Becker; Paul Caubere 📂 Article 📅 1986 🏛 Elsevier Science 🌐 French ⚖ 178 KB

Vinyl halides can be coupled by NiCRA-bpy in THF or hexane. Interestingly simply changing the solvent changes the nature of the product : diene in THF, and enyne in hexane. Metal promoted homocoupling of vinyl halides continues to be actively studied on account of its wide range of synthetic applic