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An efficient and rapid procedure for ring opening reaction of various epoxides with phenol and thiophenol derivatives was developed. The procedure can be obtained at room temperature under solvent-free condition in presence of (C 4 H 12 N 2 ) 2 [BiCl 6 ]Cl·H 2 O (1 mol %). This catalyst can be reused several times without significant loss of activity.
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