Catalysis with cycloruthenated complexes

Abstract

We discuss recent advances in the applications of cycloruthenated complexes in organic synthesis, comprising C–H activation, chiral-at-metal catalysis, Z-selective olefin metathesis, transfer hydrogenation, enantioselective cyclopropanations and cycloadditions.

A comprehensive understanding of carbon–carbon bond formation by alkyne migratory insertion into manganacycles

“…Depending on the conditions employed and the nature of the catalyst, a range of products from either redox-neutral or oxidative coupling may be obtained (Figure 1a). There have been significant advances in this area using d 6 -metal pre-catalysts based on Mn(I), [15][16][17][18] Co(III), [19][20][21][22][23] Ru(II) [24][25][26] and Rh(III) [27][28][29][30] scaffolds.…”

“…1a). There have been signicant advances in this area using d 6 -metal pre-catalysts based on Mn(I), [15][16][17][18] Co(III), [19][20][21][22][23] Ru(II) [24][25][26] and Rh(III) [27][28][29][30] scaffolds.…”

“…1a). There have been significant advances in this area using d 6 -metal pre-catalysts based on Mn( i ), 15–18 Co( iii ), 19–23 Ru( ii ) 24–26 and Rh( iii ) 27–30 scaffolds.…”

Ru(II)‐Catalyzed Hydroarylation of in situ Generated 3,3,3‐Trifluoro‐1‐propyne by C−H Bond Activation: A Facile and Practical Access to β‐Trifluoromethylstyrenes

“…[10] Therefore the quest for more efficient catalytic systems is of prime importance and recently, the use of cyclometallated metal complexes as catalytically active species (especially derived from rutheniumbased precursors) has emerged as an appealing new trend. [11,12] Hence, we aim at designing the first synthetic route to btrifluoromethylstyrenes from non-prefunctionalized arenes by transition metal-catalyzed C-H bond activation taking benefit from the unique feature of ruthenium catalysts. With these considerations in mind, we questioned whether we could reach that synthetic goal by the in situ generation of 3,3,3trifluoropropyne, which would then undergo a directed ruthenium -catalyzed hydroarylation reaction in a one-pot process.…”

Ru@C as a safety‐release RuO3@C catalyst precursor for selective oxidative cleavage of alkenes to aldehydes or ketones and alkynes to 1, 2‐diketones

“…Therefore, ruthenium and its derivatives are extremely important catalysts for oxidative and reductive reactions. [ 10 ] Among the ruthenium oxides, RuO 4 has superior oxidation performance. The oxidative cracking of benzene groups, which cannot be achieved by conventional oxidants, can be achieved under mild conditions with the participation of RuO 4.…”