Abstract
Abstract Heterogeneous acid catalysts have been employed in the synthesis of N -tert.-butyl aromatic amines from isobutene and arylamines. This technique provides a highly selective route to N -tert.-butylanilines, compounds not readily available by conventional alkylating methods. The selectivity of N -alkylation is highest when heterogeneous acid catalysts of moderate Bronsted acidity are used at temperatures of 100–180°C. The selectivity between N and ring alkylation is also highly dependent upon the type and location of substituents on the aromatic ring.
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