Journal
GREEN CHEMISTRY
Volume 13, Issue 10, Pages 2931-2938Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1gc15725f
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Funding
- FAPERGS [FAPERGS/PRONEX 10/0005-1, 10/0027-4]
- CAPES
- FINEP
- CNPq
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We described herein the use of imidazolium ionic liquids [bmim]PF6 and [bmim]BF4 in the selective, metal and catalyst-free synthesis of unsymmetrical diaryl selenides by electrophilic substitution in arylboron reagents with arylselenium halides (Cl and Br) at room temperature. This is a general substitution reaction and it was performed with arylboronic acids or potassium aryltrifluoroborates bearing electron-withdrawing or electron-donating groups, affording the corresponding diaryl selenides in good to excellent yields. The ionic liquid [bmim][PF6] was easily recovered and utilized for further substitution reactions.
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