Palladium-Catalyzed Desulfitative Conjugate Addition of Aryl Sulfinic Acids and Direct ESI-MS for Mechanistic Studies

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.

Platinum-catalyzed syn-stereocontrolled ring-opening of oxabicyclic alkenes with sodium arylsulfinates

A new efficient platinum-catalyzed ring-opening reaction of oxabicyclic alkenes with a wide range of sodium arylsulfinates was developed.

The promoting effect of pyridine ligands in the Pd-catalysed Heck–Matsuda reaction

Simple and cheap pyridine-type ligands promote good to excellent yields for poorly efficient Pd-catalyzed Heck–Matsuda arylations in less than 1 h.

Structure–activity relationships in Pd catalysed C–S activation of thioesters

The structure–activity relationship of thioesters promoted by Pd(0) complex has been studied using the density functional theory calculation methods.

Palladium-Catalyzed Desulfitative Oxidative Coupling between Arenesulfinic Acid Salts and Allylic Alcohols: A Strategy for the Selective Construction of β-Aryl Ketones and Aldehydes

An efficient palladium-catalyzed desulfitative oxidative coupling of sodium arylsulfinites for highly region-selective Heck-type reaction of allylic alcohols has been developed. The compatibility of the functionalities of -I, -Br, and -F would explore further postfunctionalization of the C-X bonds. This method provides a new and straightforward protocol for the synthesis of β-aryl ketones and aldehydes. The deuterium labeling experiments indicated that this transformation may proceed via a [1, 2-H] shift process.

Copper-catalysed Coupling of Aryl Tosylates with Sodium Arylsulfinates

Diaryl sulfones derivatives were easily synthesised from aryl tosylates and sodium arylsulfinates in high yields using [Cu(CH3CN)4]PF6 as catalyst. The transformation is efficient, simple and the starting materials are readily available.

Synthesis of Symmetrical Diaryl Sulfone by Homocoupling of Sodium Arylsulfinate

An efficient practical homocoupling reaction of sodium arylsulfinate promoted by Cu(II) is reported whereby symmetrical diaryl sulfone derivatives are obtained with high selectivity and reactivity by intermolecular cross-coupling. This homocoupling reaction is tolerant to many functional groups and proceeds under mild conditions.

Sulfinate derivatives: dual and versatile partners in organic synthesis

Recent advances in the preparation and synthetic uses of sulfinic acids and their derivatives are highlighted in this review. They are used as versatile partners in sulfonylative and desulfitative reactions.

Accurate predictions of C–SO2R bond dissociation enthalpies using density functional theory methods

M06-2X/6-31G(d) was found to be accurate in calculating C–S BDEs, and preliminary mechanistic studies were performed using it.

Efficient formation of benzylic quaternary centers via palladium catalysis

Four's a crowd: An efficient protocol for the formation of benzylic quaternary centers via arylation of enones using a catalyst made from Pd(O2 CCF3 )2 and 2,2'-bipyridine is developed. For cyclic substrates, catalyst loadings as low as 1 mol % Pd are enough to afford excellent yields (>90%) using a variety of arylboronic acids. In case of acyclic substrates, the addition of KSbF6 was found to improve conversions and yields.