N,N,N',N'-Tetramethylethylenediamine → alpha-(o-tert.-Butylphenyl)-1-(methoxymethyl)-alpha-phenylimidazole-2-methanol

関与物質

反応手順

Under a nitrogen atmosphere and at -60° C., 38 ml. (0.08 mol) of a butyllithium solution (20% in n-hexane) were added drop-wise over the course of 45 minutes to a mixture of 9.6 g. (0.08 mol) of N,N,N',N'-tetramethylethylenediamine and 7 g. (0.06 mol) of 1-(methoxymethyl)imidazole in 100 ml. of anhydrous tetrahydrofuran. The mixture was stirred for another two hours under the same conditions and then 16 g (0.0675 mol) of o-tert.-butylbenzophenone in 100 ml. of anhydrous tetrahydrofuran were added dropwise. After the addition was completed, the mixture was stirred for 2 hours at -60° C., and one hour at room temperature. The mixture was decomposed with 5 ml. of water, the precipitate was filtered off and the filtrate was dried over sodium sulphate and concentrated. The solid residue was crystallised from isopropyl alcohol. α-(o-tert.-Butylphenyl)-1-(methoxymethyl)-α-phenylimidazole-2-methanol was obtained. Melting point 149°-150° C.

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