The invention is a method for efficiently producing an aromatic compound by an intramolecular cyclization reaction, the aromatic compound having a ring structure that includes a nitrogen atom or oxygen atom. An aromatic compound composed of tert-butyl-2-(3-oxo-3-phenylpropyl)phenyl carbamate or another aniline derivative or the like, or an aromatic compound composed of 3-(1-hydroxynaphthalene-2-yl)propionic acid or another naphthol derivative or the like is made to react in a system to which an oxidizing agent and a quaternary ammonium salt represented by general formula (1) are fed. In the formula, X is an iodine atom; and R
1
, R
2
, R
3
and R
4
are each independently a C
1-30
hydrocarbon group in which some hydrogen atoms are optionally substituted with halogen atoms, or R
1
and R
2
may be combine to form a divalent organic group bonded to a nitrogen atom, and R
3
and R
4
may combine to form a divalent organic group bonded to a nitrogen atom.
该发明是一种通过分子内环化反应高效生产含有环结构的芳香化合物的方法,所述芳香化合物具有包含氮原子或氧原子的环结构。将由叔丁基-2-(3-氧代-3-苯基丙基)
苯基氨基甲酸酯或其他
苯胺衍
生物等组成的芳香化合物,或者由3-(1-羟基
萘基)
丙酸或其他
萘酚衍
生物等组成的芳香化合物,在供应有氧化剂和由通式(1)代表的季
铵盐的体系中反应。在该式中,X是
碘原子;R1、R2、R3和R4分别独立地是C1-30烃基,其中一些氢原子可以选择性地被卤素原子取代,或者R1和R2可以结合形成与氮原子结合的二价有机基,R3和R4可以结合形成与氮原子结合的二价有机基。