Reaction of Organic Selenocyanates with Hydroxides: The One-Pot Synthesis of Dialkyl Diselenides from Alkyl Bromides

Synthesis of Monofluoromethyl Selenoethers of Aryl and Alkyl from Organoselenocyanate via One‐Pot Reaction

“…To gain more insights, some control experiments were conducted (Scheme ). Treatment of selenocyanatobenzene with KOH could afford PhSeSePh in 92% yield (Scheme , a ) . To confirm that KOH indeed promoted the monofluoromethylation, we performed a reaction with PhSeSePh and ICFH 2 in the absence of KOH.…”

Synthesis and X‐ray Structural Characterization of Di‐p‐aminobenzenediselenide [p‐H2NC6H4Se]2 and its Mercury(II) Derivatives

“…We adapted the procedures described by Krief 25 and Plano 26 to prepare and structurally characterize [ p ‐H 2 NC 6 H 4 Se] 2 . The [ p ‐H 2 NC 6 H 4 Se] – group is a versatile building block containing hard and soft donors.…”

Microwave-assisted one-pot synthesis of symmetrical diselenides, ditellurides and disulfides from organoyl iodides and elemental chalcogen catalyzed by CuO nanoparticles

“…Several methods have been described for the synthesis of diorganoyl diselenides and ditellurides [9][10][11][12][13][14][15][16][17][18] which include the reaction of metal diselenides or ditellurides with organoylhalides [19][20][21], the well established reaction of Grignard reagents with elemental selenium or tellurium, the reduction of selenocyanates [22][23][24][25] and the oxidation of both selenols and selenolates [26,27]. Several methodologies have been described for the synthesis of diorganoyl disulfides generally obtained by oxidation of thiols [28][29][30][31][32][33] or even, according to Taniguchi, from elemental sulfur and aryl iodides catalyzed by Cu-bpy, aluminum and sodium carbonate [34].…”

“…61-62 • C), yield: 70%; 1 H NMR (CDCl 3 , 200 MHz) (ı, ppm) 7.61 (m, 4H), 7.25-7.21 (m, 6H); 13 C NMR (CDCl 3 , 50 MHz) (ı, ppm) 131.5, 130.9, 129.1, 127.7; GC-MS: m/z (%) 314(34), 312(33), 310(16), 234(18), 232(10), 230(5), 159(16), 158(25), 157 (80), 155(48), 153(22), 117(16), 78 (78), 77 (100), 51(61), 50(29).Bis(4-methylphenyl) diselenide (2b):[27,47] orange solid, mp 42-43 • C (lit. 44-45 • C), yield: 71%; 1 H NMR (CDCl 3 , 200 MHz) (ı, ppm) 7.49 (d, J = 8.2 Hz, 4H), 7.07 (d, J = 8.2 Hz, 4H), 2.34 (s, 6H); 13 C NMR (CDCl 3 , 50 MHz) (ı, ppm) 139.Bis(3-methoxyphenyl) diselenide (2d): [47] orange solid, mp 191-193 • C (lit.…”