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In Abwandlung der Literaturangabe wurden bei - 70¡ãC zu einer Losung von
50 g (0.15 mol) l-Brom-2,4,6-tri-t-butylbenzen in 500 ml eines 4/l Gemisches aus
Petrolether (40-6O¡¯C) und THF, langsam 0.17 mol n-Butyllithium in Hexan getropft
und noch 2 h gertihrt. Das Reaktionsgemisch wurde auf 0¡ãC aufgetaut, die Losungsmittel abdekantiert, das ausgefallene 1 mit Petrolether 40-60¡ãC grundlich
ausgewaschen und schliesslich in 500 ml Petrolether 40- 60¡ãC suspendiert.

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