Dyer PW, Fawcett J, Griffith GA, Hanton MJ, Olivier C, Patterson AR, Suhard S. Sterically-controlled regioselective para-substitutions of aniline.
Chem Commun (Camb) 2005:3835-7. [PMID:
16041433 DOI:
10.1039/b506824j]
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Abstract
Introduction of sterically demanding 1-isopropyl-2-methylpropyl or triisopropylsilyl groups at the nitrogen of aniline allows high-yielding regioselective para-substitution to be achieved using a lithiation/substitution sequence.
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