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    Dyes of the 2,4-dihydroxyquinoline series
    1.
    发明授权
    Dyes of the 2,4-dihydroxyquinoline series 失效
    2,4-二羟基喹啉系列的染料

    公开(公告)号：US3715360A

    公开(公告)日：1973-02-06

    申请号：US3715360D

    申请日：1971-02-19

    Applicant: BASF AG

    Inventor： GAENG M ,  DIMROTH P

    IPC: C09B23/16 ,  C07D33/50

    CPC classification number: C09B23/166

    Abstract: New dyes having the formula:

    IN WHICH R1 denotes a hydrogen atom, a halogen atom or a nitro group, n denotes the integer 1 or 2, R2 denotes a hydrogen atom, an unsubstituted or substituted alkyl group having one to three carbon atoms, an aromatic radical or, together with DENOTES A FIVE-MEMBERED OR SIX-MEMBERED CARBOCYCLIC OR HETEROCYCLIC RING WHICH MAY CONTAIN SUBSTITUENTS AND CONDENSED RINGS, AND R3 may also denote an unsubstituted or substituted alkyl group having one to three carbon atoms or an aliphatic, aromatic or heterocyclic radical which may be attached by way of -CO-. The dyes are pigment dyes.

    Abstract translation: 具有下式的新染料：

    3.
    发明专利
    未知

    公开(公告)号：DK569681A

    公开(公告)日：1982-07-01

    申请号：DK569681

    申请日：1981-12-22

    Applicant: BASF AG

    Inventor： HUSSLEIN G ,  HAMPRECHT G ,  KOENIG K H ,  BOEHM W ,  GAENG M

    IPC: C07C59/68 ,  C07C51/00 ,  C07C51/363 ,  C07C51/367 ,  C07C59/70 ,  C07C67/00 ,  C07C

    Abstract: A process for the preparation of 2,4-dichloro- or 2-methyl-4-chlorophenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chlorophenoxypropionic acid by reacting phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid with chlorine in water, wherein phenoxyacetic acid or phenoxypropionic acid is precipitated from an aqueous solution thereof, chlorine gas is passed into the resulting suspension of phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid in water at from 30 DEG to 70 DEG C. at a rate not exceeding the rate at which it is consumed in the suspension, until from 100 to 110% of the theoretically required amount of chlorine gas has been taken up by the suspension, and the 2,4-dichloro- or 2-methyl-4-chloro-phenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chloro-phenoxypropionic acid is isolated from the suspension.

    PREPARING PHENOXYACETIC ACID OR ALPHA-PHENOXYPROPIONIC ACID DERIVATIVES
    4.
    发明专利
    PREPARING PHENOXYACETIC ACID OR ALPHA-PHENOXYPROPIONIC ACID DERIVATIVES 未知

    公开(公告)号：NZ199356A

    公开(公告)日：1984-03-30

    申请号：NZ19935681

    申请日：1981-12-22

    Applicant: BASF AG

    Inventor： HUSSLEIN G ,  HAMPRECHT G ,  KOENIG J-H ,  BOEHM W ,  GAENG M

    IPC: C07C59/68 ,  C07C51/00 ,  C07C51/363 ,  C07C51/367 ,  C07C59/70 ,  C07C67/00 ,  C07C51 ,  C07C59

    Abstract: A process for the preparation of 2,4-dichloro- or 2-methyl-4-chlorophenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chlorophenoxypropionic acid by reacting phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid with chlorine in water, wherein phenoxyacetic acid or phenoxypropionic acid is precipitated from an aqueous solution thereof, chlorine gas is passed into the resulting suspension of phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid in water at from 30 DEG to 70 DEG C. at a rate not exceeding the rate at which it is consumed in the suspension, until from 100 to 110% of the theoretically required amount of chlorine gas has been taken up by the suspension, and the 2,4-dichloro- or 2-methyl-4-chloro-phenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chloro-phenoxypropionic acid is isolated from the suspension.

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