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151 条记录 (耗时 0.018 秒)

    METHOD FOR PRODUCING 2-AMINO-SUBSTITUTED BENZALDEHYDE COMPOUND
    1.
    发明公开
    METHOD FOR PRODUCING 2-AMINO-SUBSTITUTED BENZALDEHYDE COMPOUND 审中-公开

    公开(公告)号：EP3196189A4

    公开(公告)日：2018-01-24

    申请号：EP15837423

    申请日：2015-08-25

    申请人： NIPPON SODA CO

    发明人： KOBAYASHI SHINICHI

    IPC分类号： C07C221/00 ,  C07B51/00 ,  C07B61/00 ,  C07C223/06 ,  C07D317/16 ,  C07D317/28

    CPC分类号： C07C221/00 ,  C07B51/00 ,  C07B61/00 ,  C07C223/06 ,  C07D317/16 ,  C07D317/28

    摘要： The present invention provides a method for producing a benzaldehyde in which an amino group is bonded in the 2 position, a halogeno group or an alkoxy group is bonded in the 3 position, and a hydrogen atom, an alkyl group, a halogeno group, an alkoxy group, or a cyano group is bonded independently in each of the 4, 5, and 6 positions, the method including: preparing a benzaldehyde in which a halogeno group or an alkoxy group is bonded in the 3 position, a hydrogen atom is bonded in the 2 position, and a hydrogen atom, an alkyl group, a halogeno group, an alkoxy group, or a cyano group is bonded independently in each of the 4, 5, and 6 positions so that a lithiation reaction is most active at the 2 position; acetal-protecting a formyl group in the benzaldehyde; sequentially performing lithiation, azidation, and amination of the 2 position; and the performing acetal deportection.