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The rearrangement of benzyl phenolic ether in the presence of an acid or AlCl3 is utilized to produce biphenyl methane compounds in very good yields. The synthesis of muscarine receptor antagonist tolterodine is described.
Notes. TBAB, tetrabutyl ammonium bromide; KI, potassium iodide; DMAC, dimethyl acetamide.
Notes. EtOAc, ethyl acetate; EDC, ethylene dichloride; NR, no reaction.
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