发明名称 PROCESS FOR PREPARATION OF 1,5-DIAMINONAPHTHALENES
摘要 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.
申请公布号 EP1295864(A1) 申请公布日期 2003.03.26
申请号 EP20020724682 申请日期 2002.05.02
申请人 MITSUI CHEMICALS, INC. 发明人 INOKI, SATOSHI;MOTOYAMA, YOSHIO
分类号 C07C205/06;C07C205/45;C07C205/56;C07C209/40;C07C209/52;C07C209/68;C07C211/58;(IPC1-7):C07C209/36;C07C211/57;C07C211/59 主分类号 C07C205/06
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