We present a straightforward synthesis of 3-aryl-2,5-dihydrofurans by ring contraction of 4-aryl-3,6-dihydro-2H-pyrans with the repeated treatment of MCPBA and BF3-OEt2. The building block 3-aryltetrahydrofuran-3-carboxylic acid with potential biological activities was also prepared.
We present a straightforward synthesis of 3-aryl-2,5-dihydrofurans by ring contraction of 4-aryl-3,6-dihydro-2H-pyrans with the repeated treatment of MCPBA and BF3-OEt2. The building block 3-aryltetrahydrofuran-3-carboxylic acid with potential biological activities was also prepared.
We present a straightforward synthesis of 3-aryl-2,5-dihydrofurans by ring contraction of 4-aryl-3,6-dihydro-2H-pyrans with the repeated treatment of MCPBA and BF3-OEt2. The building block 3-aryltetrahydrofuran-3-carboxylic acid with potential biological activities was also prepared.