Solvent-Free Synthesis of Arylsulfonyl Cyanides Using Potassium Hexacyanoferrate(II) as An Ecofriendly Cyanide Source

Water-mediated radical C–H tosylation of alkenes with tosyl cyanide

“…The sulfonyl cyanides were prepared in situ from sulfonyl chloride via modification of the known method with CuCN instead of K 4 [Fe(CN) 6 ] at room temperature. 19 We found that four different arylsulfonyl cyanides gave the arylsulfonylation products ( 52–55 ) in good yields. However, no products were detected for alkylsulfonylation.…”

Eco-friendly conjugate hydrocyanation of α-cyanoacrylates using potassium hexacyanoferrate(II) as cyanating reagent

“…K 4 [Fe(CN) 6 ] is a by-product of the coal chemical industry and commercially available by the tonne; it is even cheaper than KCN. Recently, K 4 [Fe(CN) 6 ] has been used as a cyanide source for some substitution reactions to synthesise benzonitriles (Schareina et al, 2004), aroyl cyanides (Li et al, 2006), arylsulphonyl cyanide (Li & Xu, 2014), benzyl cyanides (Ren et al, 2012) and cinnamonitriles (Saha et al, 2012). The present work focused on the cyanation of unsaturated compounds including C--O, C--N or C--C bonds by nucleophilic addition reactions using K 4 [Fe(CN) 6 ] as an eco-friendly cyanide source (Li et al, , 2012(Li et al, , 2013).…”

Selective Monohydrocyanation of Diimine using Potassium Hexacyanoferrate(II)-Benzoyl Chloride Reagent System as a Cyanide Source

“…In addition, it has been described as an anti-agglutinating auxiliary for table salt (NaCl). Recently, K 4 [Fe(CN) 6 ] has been used as a cyanide source for some substitution reactions to * For correspondence synthesize benzonitriles, 11 14 aroyl cyanides, 15 sulfonyl cyanides, 16 benzyl cyanides, 17 and cinnamonitriles. 18 Our current research interests focused on the cyanation of unsaturated compounds including C=O, C=N and/or C=C bonds by nucleophilic addition reactions using K 4 [Fe(CN) 6 ] as a cyanide source.…”