Backbone tuning in indenylidene–ruthenium complexes bearing an unsaturated N-heterocyclic carbene

• César A. Urbina-Blanco,
• Xavier Bantreil,
• Hervé Clavier,
• Alexandra M. Z. Slawin and
• Steven P. Nolan

Beilstein J. Org. Chem. 2010, 6, 1120–1126, doi:10.3762/bjoc.6.128

• in this field [1][2][3][4][5][6][7][8]. Mixed complexes bearing both a phosphane and a NHC ligand, so-called 2nd generation catalysts, typically display better thermal stability and activities compared to 1st generation catalysts [9][10]. Key to the success and research activity involving 2nd

Ring opening metathesis polymerization-derived block copolymers bearing chelating ligands: synthesis, metal immobilization and use in hydroformylation under micellar conditions

• Gajanan M. Pawar,
• Jochen Weckesser,
• Siegfried Blechert and
• Michael R. Buchmeiser

Beilstein J. Org. Chem. 2010, 6, No. 28, doi:10.3762/bjoc.6.28

• attention. Though M1 contains a chelating ligand and can be polymerized by both Schrock and Grubbs-type initiators [15][16][17][18]. M2 is particularly problematic since it contains a quaternary ammonium moiety and has the ability to alkylate the phosphane or pyridine ligands of 1st-, 2nd-, and 3rd

A review of new developments in the Friedel–Crafts alkylation – From green chemistry to asymmetric catalysis

• Magnus Rueping and
• Boris J. Nachtsheim

Beilstein J. Org. Chem. 2010, 6, No. 6, doi:10.3762/bjoc.6.6

• et al. [65]. In addition to the transition metal Pt(II), catalytic amounts of hydrochloric acid were necessary to obtain the desired 2,3-annulated indoles in sufficient yields. By employing optically pure axial chiral phosphane ligands, an enantioselective version of this transformation was developed

• . using self-assembling palladium-phosphane catalysts [83]. Further procedures for the 3-benzylation and allylation of indole employing FeCl3 and InBr3 have been developed more recently by Yadav and Jana [84][85]. Both procedures are very similar and employ 10 mol% of catalyst. However, the reaction with

An exceptional P-H phosphonite: Biphenyl- 2,2'-bisfenchylchlorophosphite and derived ligands (BIFOPs) in enantioselective copper- catalyzed 1,4-additions

• T. Kop-Weiershausen,
• J. Lex,
• J.-M. Neudörfl and
• B. Goldfuss

Beilstein J. Org. Chem. 2005, 1, No. 6, doi:10.1186/1860-5397-1-6

• chlorophosphite intermediates. Synthesis of biphenyl-2,2'-bisfenchol (BIFOL) based phosphane derivatives (BIFOPs). Geometries of BIFOP-systems with respect to biaryl dihedral angles (C2-C1-C1’-C2’, BAA), fenchyl-aryl dihedral angles (C1-C2-C3-O1) on the lone pair-side of phosphorus (FAA-lp) and at the substituent