Mitsui Chemicals, Inc.

Yoshio Motoyama

Daisuke Fukuoka

Naoshi Nagai

Hiroyoshi Watanabe

Yoshihisa Inoue

Satoshi Inoki

Takeshi Ishitoku

Masumi Okita

Yasuko Ono

Kenji Shimamoto

Noriaki Kihara

In a process where an ortho-alkylnitrobenzene derivative and a vinyl compound as starting materials are used to prepare a 1,5-diaminonaphthalene derivative via a 4-(2-nitrobenzene)propane derivative and a 5-nitro-1-tetralone derivative, the ortho-alkylnitrobenzene derivative and a vinyl compound having an electron withdrawing group such as an acrylonitrile derivative and an acrylate may be reacted in the presence of a base to provide an aromatic nitro compound. An aromatic nitro compound such as 4-(2-nitrobenzene)butanonitrile thus obtained may be cyclized to safely, cost-effectively and selectively provide a 5-nitro-1-tetralone derivative without forming any isomer. Furthermore, from the 5-nitro-1-tetralone derivative, a 1,5-diaminonaphthalene derivative may be prepared without forming any isomer.

Process for preparing 1,5-diaminonaphthalene derivative

Process for preparing an alkylcyclohexanol alkylene oxide adduct

The present invention relates to a process for producing a substituted amine represented by the general formula (IV):

Process for producing substituted amines and a method for purifying

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Hiroshima, Japan

Yoshio Motoyama