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The synthesis of 1,3,6,8-tetra-tert-butylcarbazole (2) by the reaction of carbazole with tertbutyl chloride in the presence of aluminium chloride is reported. The X-ray structures of 2 and its diethyl ether adduct are compared. The gap formed by the tert-butyl groups in 1,8-position has been calculated and compared with that of the supermesithyl substituent.

Synthese und Struktur von 1,3,6,8-Tetra-tert-butylcarbazol / Synthesis and Structure of 1,3,6,8-Tetra-tert-butylcarbazole