Sulfated metaaminophenol compounds
    3.
    发明授权
    Sulfated metaaminophenol compounds 失效
    硫酸偏氨基苯酚化合物

    公开(公告)号:US5616809A

    公开(公告)日:1997-04-01

    申请号:US428619

    申请日:1995-04-25

    摘要: Sulfated metaaminophenols are disclosed and have the formula ##STR1## where: Z is alkyl, aralkyl, monohydroxyalkyl, polyhydroxyalkyl, aryl, aminoalkyl;R.sub.1 is hydrogen, alkyl, monohydroxyalkyl, polyhydroxyalkyl, monocarbamylalkyl, dicarbamylalkyl, aminoalkyl, acylaminoalkyl, carbalkoxyalkyl, carbamyl, or monoalkylcarbamyl;R.sub.2 is hydrogen, alkyl, monohydroxyalkyl, alkoxy;and their acid salts.Intermediate products used for their preparation are also disclosed.These sulfated metaaminophenols are used to dye keratinous fibers.

    摘要翻译: 公开了硫酸偏氨基苯酚,并具有式(I)其中:Z是烷基,芳烷基,一羟基烷基,多羟基烷基,芳基,氨基烷基; R1是氢,烷基,单羟基烷基,多羟基烷基,单链烷基烷基,二氨基烷基,氨基烷基,酰基氨基烷基,碳烷氧基烷基,氨基甲酰基或单烷基氨基甲酰基; R2是氢,烷基,单羟基烷基,烷氧基; 和它们的酸盐。 还公开了用于其制备的中间产物。 这些硫酸偏氨基苯酚用于染色角质纤维。

    Method of preparing aldehydes
    7.
    发明授权
    Method of preparing aldehydes 失效
    制备ALDEHYDES的方法

    公开(公告)号:US3845076A

    公开(公告)日:1974-10-29

    申请号:US24530572

    申请日:1972-04-19

    申请人: SAGAMI CHEM RES

    发明人: TSUCHIHASHI G OGURA K

    摘要: 1. A METHOD OF PREPARING AN ALDEHYDE OF THE FORMULA

    1-R1,2-R2,5-(H-CO-CH2-)-BENZENE

    WHEREIN R1 IS A MEMBER SELECTED FROM THE GROUP CONSISTING OFF HYDROGEN AND ALKOXY HAVING 1 TO 4 CARBONS, R2 IS A MEMBER SELECTED ROM THE GROUP CONSISTING OF HYDROGEN, HALOGEN AND ALKOXY HAVING 1 TO 4 CARBONS, AND R1 AND R2 TOGETHER REPRESENT ALKYIDENEDIOXY HAVING 1 TO 4 CARBONS, WHICH COMPRISES THE STEPS OF SUBJECTING TO AN ACIDIC HYDROLYSIS A SULFOXIDE OF THE FORMULA

    1-R1,2-R2,5-(R3-S(=O)-CH(-S-R3)-CH-CH2-)-BENZENE

    WHREIN R1 AND R2 HAVE THE ABOVE MEANINGS, AND THE TWO R3 GROUPS ARE THE SAME AND EACH SELECTED FROM THE GROUP CONSISTING OF ALKYL HAVING 1 TO 4 CARBONS AND PHENYL SAID ACIDIC HYDROLYSIS BEING CARRIED OUT IN THE PRESENCE OF MINERAL OR ORGANIC PROTIC ACID HAVING A PK SMALLER THAN ABOUT 1 OR LEWIS AICDS.