Silver‐Catalyzed Nitrene Transfer Reactions

Ruthenium and Rhodium Complexes of Thioether-Alkynylborates

“…A solution of lithium phenylacetylide (0.032 g, 0.296 mmol) in 3 mL of THF was added to a solution of (PhSCH 2 B(C 6 F 5 ) 2 ) 2 (0.137 g, 0.146 mmol) in 3 mL of THF at −35 °C, and the solution was left stirring overnight before the solvent was removed in vacuo and the white solid was washed with pentane, yielding a white powder (0.178 g, 85%). 1 (2). A solution of 1 (0.050 g, 0.069 mmol) in 3 mL of THF was added to a suspension of (PPh 3 ) 3 RuHCl (0.064 g, 0.069 mmol) in 5 mL of THF at room temperature, and the mixture was stirred overnight.…”

“…Such ligands have been popular for use in coordination chemistry, as a large range of modifications altering the steric and electronic properties of these ligands is conveniently achieved. Such chemistry has been widely explored and extensively reviewed. − Other borate-based anionic ligands have garnered attention as well. For example, Peters and co-workers have exploited monodentate, bidentate, and tridentate borate-based ligands of the general forms [R 3 BC 6 H 4 PR′ 2 ] − , [RB(CH 2 PR′ 2 ) 3 ] − , and [R 2 B(CH 2 PR′ 2 ) 2 ] − (Scheme ) in a variety of creative developments. − For example, these authors have developed unique approaches to Fe hydrazine, CO 2 , and nitride chemistry, ,, Cu aminyl radicals as well as novel routes to stabilize unusual main-group species. , Peters has also employed the heteroleptic bis(phosphino)pyrazolylborate ligand [PhB(CH 2 P t Bu 2 ) 2 (pz)] to prepare terminal Fe(IV) imides …”