1.
    发明专利
    未知

    公开(公告)号:DE4416476A1

    公开(公告)日:1995-11-16

    申请号:DE4416476

    申请日:1994-05-10

    Applicant: BASF AG

    Abstract: The invention pertains to thiophenes of the formula (I), where n is 2 to 6; L and L are hydrogen, optionally substituted C1-C10 alkyl, C3-C7 cycloalkyl or phenyl, or L and L together with the connecting nitrogen atom represent a heterocyclic radical; X and Y are hydrogen, optionally substituted C1-C10 alkyl, C3-C7 cycloalkyl or phenyl; and Z is cyano, hydroxysulfonyl, C1-C10 alkoxycarbonyl, optionally substituted C1-C4 alkylsulfonyl, optionally substituted phenylsulfonyl or a radical of the formula (a), where R is hydrogen or cyano and R and R are cyano, nitro, C1-C10 alkoxycarbonyl, optionally substituted C1-C4 alkylsulfonyl or optionally substituted phenylsulfonyl. The invention also relates to the use of said thiophenes in nonlinear optics, a method for the preparation of bithiophenes, and stannylthiophenes as their intermediates.

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