Synthesis of benzyl alcohol in the above two, we had a brief introduction, the last time we introduced four, today we introduce a, is the use of alcohol - water system as the reaction medium, the synthesis of benzyl alcohol two, this method can in a relatively short period of time, two per cent of benzophenone 100 two benzyl alcohol conversion, harvest rate is more than eighty-five percent, can greatly improve the rate of two benzene methanol synthesis, and the reaction solution can be recycled.

  Specific operation method is as follows, two benzophenone proportion of adding alcohol, adding potassium borohydride, only stirring at room temperature for a certain period of time, there will be a large number of solid precipitation, filtration and drying is obtained after the two benzyl alcohol. Special attention is needed, the amount of potassium borohydride can increase greatly, because potassium borohydride affects the full extent of the reaction process, the reaction is more complete, more, plus the mother liquor can be recycled, so there is no waste problem. The specific method of recovery is simple, adding a reducing agent can be, the remaining liquid meets the emission standards, the environment is pollution-free, non irritating, cheap raw materials, common, you can achieve large-scale industries.

  In summary, the synthesis of two benzyl alcohol in aqueous phase is a reaction at room temperature with PEG400 alcohol and two phenyl ketone in aqueous alcohol system as reaction medium.