Efficient Hydrosilylation of Carbonyl Compounds with the Simple Amide Catalyst [Fe{N(SiMe₃)₂}₂]

Cesium Carbonate Catalyzed Chemoselective Hydrosilylation of Aldehydes and Ketones under Solvent‐Free Conditions

“…In this regard, abundant and inexpensive iron catalysts reported by Beller, Nagashima, Chirik, and Tilley have attracted a great deal of attention 3f. 4–7 These iron catalysts exhibit a high chemoselectivity for hydrosilylation of aldehydes and ketones. On the other hand, Lewis acid and base catalysts are also non‐toxic alternatives,8, 9 particularly B(C 6 F 5 ) 3 and KO t Bu have been successfully employed as catalysts for the hydrosilylation of carbonyl compounds.…”

Aerobic oxidation of secondary alcohols using NHPI and iron salt as catalysts at room temperature

“…However, because oxygen molecule cannot be activated directly by NHPI in the absence of co-catalyst at room temperature, a co-catalyst is required for this catalytic reaction. Iron has a number of advantages over other transition metals for it's relatively non-toxic, cheap and environmentally friendly [27], and iron-based catalyst systems have been applied in a variety of organic transformations [28][29][30][31][32][33][34][35][36], especially in some oxidation reactions using oxygen as oxidant [37][38][39]. Therefore, we supposed iron salts have a potential as good co-catalysts in NHPI catalytic system and applied NHPI and iron salts as the catalytic system to the oxidation of alcohols.…”

The Instability of Ni{N(SiMe3)2}2: A Fifty Year Old Transition Metal Silylamide Mystery

“…[3] Uniquely, the Ni II amide was reported to be unstable, decomposing to ab lack solid at room temperature. [2] TheM n, Fe,a nd Co silylamides are thermally stable and have proven to be valuable synthons in diverse applications, [4][5][6][7][8][9][10][11][12][13] but the unstable nature of Ni{N(SiMe 3 ) 2 } 2 has hindered its further use.I ts instability is especially striking because several other stable,h omoleptic Ni II amides are known. These include {Ni(NPh 2 ) 2 } 2 , [14] the borylamides Ni{N(R)BMes 2 } 2 (R = Ph or Mes), [15,16] the primary terphenyl amides Ni{N(H)Ar Me6 } 2 , [17] Ni{N(H)Ar iPr4 } 2 , [18] and Ni{N(H)Ar iPr6 } 2 [17] (Ar Me6 = C 6 H 3 -2,6-(C 6 H 2 -2,4,6-Me 3 ) 2 , Ar iPr4 = C 6 H 3 -2,6(C 6 H 3 -2,6-i Pr 2 ) 2 ,A r iPr6 = C 6 H 3 -2,6(C 6 H 2 -2,4,6-i Pr 3 ) 2 ), and Ni{N(SiMe 3 )Dipp} 2 (Dipp = C 6 H 3 -2,6-i Pr 2 ).…”