a method for the cubr2-promoted tetrahydrofuranylation of alcohols and 1,3-dione has been developed. a variety of different alcohols were efficiently converted into the corresponding 2-tetrahydrofuran ethers in the presence of cubr2. it is noteworthy that this protocol also successfully converted 1,3-diphenyl-1,3-dione into the corresponding 2-tetrahydrofuran derivative in good yield.
