Magnetically Separable CuFe2O4 Nanoparticle Catalyzed C–Se Cross Coupling in Reusable PEG Medium

Abstract

Unsymmetrical diaryl selenides (III) are obtained on arylation of phenylselenyl bromide.

Photoinduced synthesis of unsymmetrical diaryl selenides from triarylbismuthines and diaryl diselenides

“…The crude product was purified by preparative TLC on silica gel (eluent: hexane/EtOAc). Details about compounds 3ab [30], 3ac [14], 3ad [17], 3ba [17], 3bb [31], 3ca [17], 3da [32], 3ea [28] and 3dc [30] were reported in the corresponding articles.…”

Recent Applications of Magnetically Recoverable Nanocatalysts in CC and CX Coupling Reactions

“…In 2012, the same investigators reported another method for the synthesis of diaryl selenides through the CuFe 2 O 4 ‐catalyzed CSe cross‐coupling of boronic acids with phenylselenyl halides in PEG‐400 medium (Scheme ) 195. Reaction of (hetero)arylboronic acids with phenylselenyl bromide produces the corresponding diaryl selenides in good to excellent yields within 8 h at 80 °C if CuFe 2 O 4 (5 mol %) is used as the catalyst in the presence of Cs 2 CO 3 as the base.…”

ChemInform Abstract: Recent Applications of Magnetically Recoverable Nanocatalysts in C—C and C—X Coupling Reactions

“…In 2012, the same investigators reported another method for the synthesis of diaryl selenidest hrough the CuFe 2 O 4 -catalyzed CÀSe cross-coupling of boronic acids with phenylselenyl halides in PEG-400 medium (Scheme 153). [195] Reaction of (hetero)arylboronic acids with phenylselenyl bromide produces the corresponding diaryl selenides in good to excellent yields within 8h at 80 8Ci fC uFe 2 O 4 (5 mol %) is used as the catalyst in the presence of Cs 2 CO 3 as the base. Electron-donating substituents on the arylboronic acid improvet he yield of the reaction.…”