Chemistry Letters, Vol.34, No.9, 1232-1233, 2005
Gas-phase catalytic Beckmann rearrangement over crystalline BPO4 of dehydration ability
The crystalline BPO4 with a P/B ratio around 1.5 prepared by dehydration of boric and phosphoric acid was found to be an effective heterogeneous catalyst for the gas-phase Beckmann rearrangement of cyclohexanone oxime to epsilon-caprolactam.