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Highly Regioselective Nitration of Hexamethylbenzene and Its Derivatives to Dinitroprehnitene with Excess Nitronium Tetrafluoroborate
Author(s) -
Surya Prakasb G. K.,
Wang Qi,
Li XingYa,
Olah George A.
Publication year - 1990
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19900730504
Subject(s) - nitration , chemistry , hexamethylbenzene , regioselectivity , tetrafluoroborate , medicinal chemistry , organic chemistry , benzene , ionic liquid , catalysis
Abstract Hexamethylbenzene and its derivatives undergo very clean regioselective dinitration to dinitroprehnitene (1, 2, 3, 4‐tetramethyl‐5, 6‐dinitrobenzene) with excess of nitronium tetrafluoroborate in dry CH 2 C1 2 solution. The mechanism of this unexpected new nitration is also discussed.