An Improved Procedure for the Preparation of Acetals from Diaryl Ketones
Andrew Thurkauf, Arthur E. Jacobson, Kenner C. Rice*
*National Institutes of Health, Building 8, Room B122, Bethesda, MD 20892, USA, Email: ricekbdg8.niddk.nih.gov
A. Thurkauf, A. E. Jacobson, K. C. Rice, Synthesis, 1988, 233-234.
Acetals of diaryl ketones with nitro, halo and methoxy substituents are easily prepared in high yield by treatment with an alcohol and the corresponding trialkyl orthoformate in the presence of a catalytic amount of trifluoromethanesulfonic acid.
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