Ethylene Oxide → 2,2'-((1,1'-Biphenyl)-4,4'-diylbis(oxy))bisethanol

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Reaction Steps

1.5 mol (280 g) of 4,4'-dihydroxybiphenyl is dissolved in 1,263 g of diethylene glycol dimethyl ether and, after adding catalytic amounts of sodium hydroxide, oxethylated with ethylene oxide in the manner described in Example 2.1 at 170° C. to obtain 4,4'-bis(2-hydroxyethoxy)biphenyl. After subjecting the reaction mixture to an analogous working up step, the diol is obtained, mp 201°-202° C. (from tetrahydrofuran/cyclohexanone). The 1H NMR spectrum confirms the constitution of the diol.

Provenance & Evidence