Indenyl complexes of Group 8 metals

(Alkenylalkylidene)(indenyl)ruthenium(II) Complexes: Synthesis by Protonation of Alkenyl Derivatives

“…[16] The rest of the main structural parameters [i.e. RuϪP(1) ϭ 2.199(3) Å , RuϪP(2) ϭ 2.234(3) Å , RuϪC* ϭ 1.97(2) Å (C* ϭ centroid of the five-membered indenyl ring), hinge angle (HA) ϭ 2.5(10)°, fold angle (FA) ϭ 6.8(9)°, slippage parameter (∆) ϭ 0.089(12) Å ) are rather similar to those found for analogous (indenyl)(phosphane)ruthenium(II) complexes reported by us, [14] and therefore do not merit further comments.…”

“…An OR-TEP-type view of the molecular structure is shown in Figure 1 and selected bond lengths and angles are presented in Table 1. The complex shows the typical pseudo-octahedral three-legged piano-stool geometry of indenylruthenium(II) complexes, [14] in which the metal atom is bonded to the η 5 -indenyl group, the two phosphorus atoms of the chelate diphosphazane and the hydrogen atom. Significantly, the bite angle P(1)ϪRuϪP(2) [70.44(12)°] of the chelate (S)-peap ligand shows a value that is quite similar to that seen in the complex [PdCl 2 {κ 2 -P,P-(S)-peap}] [71.5(1)°] [15] and by the analogous chelate dppm ligand in the complex [RuH(η 5 -C 9 H 7 )(dppm)] [dppm ϭ bis(diphenylphosphanyl)methane] [71.28(2)°].…”

Cationic Palladium Complex‐Catalyzed Diastereoselective Tandem Annulation of 2‐Iminoarylboronic Acids with Substituted Alkynes: Enantioselective Synthesis of Aminoindene Derivatives by Double Asymmetric Induction

“…[3] They can also be used as ligands for transition metal complexes. [4] There have been many reports on the synthesis of indene derivatives using transition metal-catalyzed reactions. [5] However, in sharp contrast to indanol derivatives, [5f,6] fewer examples are related to the synthesis of aminoindene derivatives, which are synthetically important targets as a result of their prevalence in natural products, pharmaceuticals, and bioactive molecules.…”

Half‐Sandwich η5‐Indenyl‐ and η6‐Areneruthenium(II) Complexes Bearing the Chiral Ligand (4S)‐2‐[(Sp)‐2‐(Diphenylphosphanyl)ferrocenyl]‐4‐(methylethyl)oxazoline (FcPN)

“…However, complex 2 behaves as a neutral species since its conductivity values in dichloromethane (4.2 Ω -1 cm 2 mol -1 ) and acetone (1.5 Ω -1 cm 2 mol -1 ) are rather low. Provided that no ring opening is observed for ruthenium complexes with the FcPN ligand, [10,11] we assume that two rotamers [16] arising from different favoured conformations of the indenyl ring [14] are formed in solution. Complexes 3a,b are soluble in dichloromethane, thf and diethyl ether and insoluble in hexane.…”