1.
    发明专利
    未知

    公开(公告)号:CH597217A5

    公开(公告)日:1978-03-31

    申请号:CH814275

    申请日:1975-06-23

    Applicant: BASF AG

    Abstract: New spirodipyrans of the formula (I) in which A is an optionally substituted benzene or naphthalene nucleus, B is dimethylene, trimethylene or tetramethylene substituted by from 1 to 3 alkyl groups and R1 and R2 are each alkyl of 1 to 6 carbon atoms, which may be substituted by cyano. The compounds (I) give deep blue to violet colorations with acid materials. They may be used for the manufacture of pressure-sensitive recording materials. The compounds (I) exhibit improved solubility in the solvents used for the manufacture of microcapsules.

    3.
    发明专利
    未知

    公开(公告)号:DE3914379A1

    公开(公告)日:1991-01-17

    申请号:DE3914379

    申请日:1989-04-29

    Applicant: BASF AG

    Abstract: 3-Aminophenylpentane-1,5-diones of the formula I (I) where R1 and R2 are, independently of one another, hydrogen, C1-C8-alkyl, C4-C8-cycloalkyl, cyano-C2-C4-alkyl, hydroxy-C2-C4-alkyl, chloro-C2-C4-alkyl, phenyl-C1-C2-alkyl which can be substituted by chlorine, or phenyl which can be substituted by clorine or methyl, or R1 and R2 form, together with the nitrogen to which they are bonded, a heterocyclic radical which can contain further hetero atoms, R3 is hydrogen, fluorine, chlorine, C1-C2-alkyl or C2-C5-alkoxy or, if R3 is ortho to -NRR2, R3 and R2 together form C2-C4-alkylene, which can be substituted, or 1,2-phenylene and A is naphthyl or a radical of the formula II (II) where X is hydrogen, fluorine, chlorine, bromine, C1-C5-alkyl, hydroxyl, C1-C5-alkoxy, phenoxy, phenyl-C1-C2-alkoxy, cyano or phenyl and n is 1 or 2, with the proviso that R1 and R2 are not both methyl when A is phenyl, are described.

    5.
    发明专利
    未知

    公开(公告)号:DE3425631A1

    公开(公告)日:1986-01-16

    申请号:DE3425631

    申请日:1984-07-12

    Applicant: BASF AG

    Abstract: Novel compounds of the general formula I I where A(-) is an anion, R is hydrogen or unsubstituted or substituted alkyl or cycloalkyl, R1 and R2 independently of one another are each hydrogen or unsubstituted or substituted alkyl or cycloalkyl, or one of the radicals may furthermore be aryl, or R1 and R2, together with the nitrogen atom, form a saturated heterocyclic structure, the radicals R3 independently of one another are each hydrogen or C1-C4-alkyl, R4 and R5 independently of one another are each unsubstituted or substituted alkyl or cycloalkyl, or one of the radicals may furthermore be hydrogen, aryl or hetaryl, R4 and R5, together with the nitrogen atom, form a saturated heterocyclic structure, n is 1, 2 or 3, X is hydrogen, chlorine, bromine, C1-C4-alkyl, C1-C4-alkoxy or nitro and Y is hydrogen or chlorine, are particularly useful for dyeing paper stocks.

    Basic dyes - prepn by catalytic oxidn of corresp cpds using complex catalysts contg heavy metals

    公开(公告)号:DE2138931A1

    公开(公告)日:1973-02-15

    申请号:DE2138931

    申请日:1971-08-04

    Applicant: BASF AG

    Abstract: Basic dyes of formula (I): (where R is H, 1-4C alkyl, 2-3C hydroxyalkyl, cyanethyl, 2-5C carbalkoxyalkyl, methoxyethyl, ethoxyethyl, 4-11C alkanoyloxyalkyl, benzyl, phenylethyl, phenyl opt. substd. by methyl, methoxy or ethoxy, or the gp. R1 is 1-4C alkyl, 2-3C hydroxyalkyl, cyanethyl, methoxyethyl, ethoxyethyl or phenyl, R2 is as R; R3 is as R1; X, Y are each H, Cl, methyl, methoxy or ethoxy; A is phenyl opt. mono- or disubstd. by Cl, OH, methyl, methoxy, ethoxy or sulphonic acid gp. or a gp. of formulae: in which R4 is H, Cl, methyl, methoxy or ethoxy; R5 is H or Cl; X- is an anion) are obtained by dehydrogenating cpds. of formula (II): with benzoquinones substd. by F, Cl, Br or Cn or nitro-substd. phenanthrene -quinones in the presence of O2 and catalysts contg. complex heavy metals (where A' is as A or a gp. of formula.

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