Diverse reactivity of an iron–aluminium complex with substituted pyridines

Abstract

The reaction of an Fe–Al complex with an array of substituted pyridines is reported. Depending on the substitution pattern of the substrate site-selective sp2 or sp3 C–H bond activation is...

Double Deprotonation of CH3CN by an Iron‐Aluminium Complex**

“…This latter resonance is characteristic for Al-μ-H 3 -Fe species derived from proton transfer reactions. [21,22] The CH 2 CN 1 H NMR signal integrating to 2H can be found at δ H = 1.81 ppm which is downfield of the corresponding resonance for CH 3 CN (δ H = 0.58 ppm in C 6 D 6 ). [28] This resonance appears as a doublet with In conclusion, we present the first double deprotonation of CH 3 CN, achieved by reaction with two equivalents of a bimetallic FeÀ Al complex.…”

“…3 b shows a broadened singlet hydride resonance at δ H =−16.00 ppm, and a singlet 31 P signal at δ P =−28.8 ppm. This latter resonance is characteristic for Al‐ μ ‐H 3 ‐Fe species derived from proton transfer reactions [21, 22] …”

“…In this paper, we report the double deprotonation of CH 3 CN to form a [CHCN] 2− dianion. This was achieved by reaction of CH 3 CN with a highly basic Fe−Al bimetallic complex recently developed by our group [21, 22] . The resulting products contain two bimetallic metal fragments bridged by a 1,3‐dianion (structure type II ).…”

Aluminum-Containing Heterobimetallic Complexes as Versatile Platforms for Homogeneous Catalysis

“…This Perspective covers the broad applicability of Al/M heterobimetallic catalysts. Although fascinating stoichiometric reactivity continues to be uncovered using Al/M complexes, − the scope of this Perspective includes catalytic transformations only. The first section covers polymerization reactions, including ring-opening polymerization (ROP) of lactides, ring-opening copolymerization (ROCOP), and alkene polymerization.…”

Double Deprotonation of CH3CN by an Iron–Aluminium Complex

“…This was achieved by reaction of CH3CN with a highly basic Fe-Al bimetallic complex recently developed by our group. [19,20] The resulting products contain two bimetallic metal fragments bridged by a 1,3-dianion (structure type II). We analyse the electronic structure of the [CHCN] 2dianion, the nature of its binding to the metals, and its mechanism of formation.…”