CC Bond-Forming Reactions of IrIII-Alkenyls and Nitriles or Aldehydes: Generation of Reactive Hydride- and Alkyl-Alkylidene Compounds and Observation of a Reversible 1,2-H Shift in Stable Hydride–IrIII Alkylidene Complexes

Abstract

Bridging the gap: The dinuclear ferric enterobactin mimic [{Fe(mecam)}2]6− (H6‐mecam=1,3,5‐N,N′,N′′‐tris(2,3‐dihydroxybenzoyl)triaminomethylbenzene) is recognized by two periplasmic binding protein molecules (yellow and blue; see structure). The assembly is stabilized through hydrophobic interactions between the ligand backbones of the dinuclear iron complex.

Synthesis of an osmafuran from photochemical hydrolysis of OsCl2(CHC(PPh3)C(O)-η2-CHCH2)(PPh3)2

“…The five-membered metalla-heteroaromatic representatives of this class of compounds include metallafurans [2], metallathiophenes [3] and metallapyrroles [4], among which metallafurans are the most common. Various synthetic routes developed to prepare metallafurans have been summarized by Wright [5].…”

The chemistry of the carbon–transition metal double and triple bond: annual survey covering the year 2002

“…797) were produced in the thermolysis of alkyl(alkenyl)iridium complexes (e.g. 796) [614]. Protonation of the irridapyrrole complex 797 afforded internally-coordinated ␤,␥-unsaturated imine complexes 799 and 800.…”

A Comprehensive Analysis of the Metal–Nitrile Bonding in an Organo-Diiron System

“…They most commonly behave as monodentate ( end-on ) ligands, and have been widely employed as weakly coordinating agents in complexes of low- to middle-valent transition metals, since their substitution by more strongly coordinating ligands is a convenient strategy to access a multitude of derivatives, catalysts and materials [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 ]. Furthermore, nitrile ligands are usually susceptible to nucleophilic attack [ 12 , 13 , 14 ] and may be engaged in a great variety of chemical transformations mediated by the adjacent metal centre, either catalytic [ 15 , 16 , 17 , 18 ] or stoichiometric [ 12 , 19 , 20 , 21 , 22 , 23 ].…”