Pd-catalyzed desulfonylative homocoupling of arenesulfonyl chlorides in the presence of hexamethyldisilane forming biaryls

Halo-substituted benzenesulfonyls and benzenesulfinates: convenient sources of arenes in metal-catalyzed C–C bond formation reactions for the straightforward access to halo-substituted arenes

The use of halo-substituted ArSO₂R as an aryl source in metal-catalyzed C–C bond formation reactions presents several advantages, as the reaction often proceeds without cleavage of the C–halo bonds.

Disilanes as oxygen scavengers and surrogates of hydrosilanes suitable for selective reduction of nitroarenes, phosphine oxides and other valuable substrates

In this report, we demonstrate that the reaction of nitroarenes with hexamethyldisilane under various conditions affords a different range of compounds with excellent selectivity.

Copper-Free Palladium-Catalysed Desulfinative Homocoupling of Sodium Arylsulfinates under Mild and Aerobic Conditions

A Pd(II)-catalysed homocoupling of sodium arylsulfinates has been successfully achieved under mild conditions. This transformation is a new method for the homocoupling reaction of sodium arylsulfinates, thus providing an alternative synthesis of symmetric biaryls. The reported homocoupling reaction is tolerant to many common functional groups, such as ester, halo, cyano and nitro and works well in the presence of electron-donating and electron-withdrawing substituents. Notably, the reported desulfinative homocoupling does not require Cu salts, ligands and bases, making this newly developed transformation attractive.

[2,2'-Bis(diphenyl-phosphan-yl)-1,1'-binaphthyl-κP,P']chlorido(4-methyl-phenyl-sulfon-yl-κS)palladium(II) dichloro-methane tris-olvate monohydrate

In the title compound, [Pd(C(7)H(7)O(2)S)Cl(C(44)H(32)P(2))]·3CH(2)Cl(2)·H(2)O, the geometry around the metal atom is distorted square planar, with a twist angle between the P-Pd-P and S-Pd-Cl planes of 28.11 (2)°. The two Pd-P bond lengths differ by about 0.04 Å and the biphosphane bite angle is slightly obtuse [92.92 (2)°]. There are three dichloro-methane and one water mol-ecule co-crystallized with the palladium mol-ecule, all with atoms in general positions. Alternating water and palladium mol-ecules form four-membered cyclic units through O-H⋯Cl and O-H⋯O hydrogen bonding. One of the dichloromethane solvent molecules is disordered over two positions in a 0.55:0.45 ratio.