A convenient method of preparing two- and three-coordinate Ni(I) complexes of the form L-NiI-X (L = P t Bu3, P i Pr3, DPPE, NHC; X = -N(SiMe3)(2,6- i Pr-C6H3), -O(2,6- t Bu2-4-Me-C6H2)) is reported. Protonation of the easily prepared anionic Ni(I) bis(amido) complex K{Ni[N(SiMe3)(2,6- i Pr-C6H3)]2} in the presence of an appropriate L-type ligand results in loss of HN(SiMe3)(2,6- i Pr-C6H3) and ...

Kinetic studies conducted under both catalytic and stoichiometric conditions were employed to investigate the reductive elimination of RuPhos (2-dicyclohexylphosphino-2',6'-diisopropoxybiphenyl) based palladium amido complexes. These complexes were found to be the resting state in Pd-catalyzed cross-coupling reactions for a range of aryl halides and diarylamines. Hammett plots demonstrated that...

Recent work shows a correlation between chiral asymmetry in non-terrestrial amino acids extracted from the Murchison meteorite and the presence of hydrous mineral phases in the meteorite [D. P. Glavin and J. P. Dworkin, Proc. Natl. Acad. Sci. U. S. A., 2009, 106, 5487-5492]. This highlights the need for sensitive experimental tests of the interactions of amino acids with clay minerals together ...

General Considerations. Unless stated otherwise, all reactions and procedures were carried out in a VAC Atmosphere Nexus glovebox or using standard Schlenk techniques under a nitrogen atmosphere. Solvents were received from Sigma Aldrich, degassed and dried using a Vac Atmosphere Solvent Purifier system and stored over 3Å molecular sieves. Prior to drying, toluene, benzene and pentane were trea...

In the title mol-ecule, C(17)H(23)N(2)O(2)P, the P atom has a distorted tetra-hedral environment. The P-N bond to the tolyl-amido fragment is 1.642 (4) Å while that to the butyl-amido fragment is 1.629 (3) Å. The dihedral angle between the two benzene rings is 82.3 (2)°. In the crystal, adjacent mol-ecules are linked via weak N-H⋯(O)P and N-H⋯N hydrogen-bonding inter-actions into an extended ch...

Substantial evidence indicates that amino acid conjugates of indole-3-acetic acid (IAA) function in auxin homeostasis, yet the plant enzymes involved in their biosynthesis have not been identified. We tested whether several Arabidopsis thaliana enzymes that are related to the auxin-induced soybean (Glycine max) GH3 gene product synthesize IAA-amino acid conjugates. In vitro reactions with six r...

Interactions of [PPh4]2[0s02C14] and [Bu”,Nl[OsNCl~] with LiZL [H2L = 1,2bis(p-toluenesulphonylamido)benzene] gave binuclear osmium(V1) compounds (PPh,),[Osz 04LZ(p-OH)d (1) and OS~N~L&-OH)~ (2), respectively. The structures of both compounds have been determined by X-ray crystallography. The crystal structure of the [OsZ04LZ@0H),12anion contains two trans-0s02(L) units bridged by two OH groups...