Process for the preparation of cationic dyestuffs
    1.
    发明授权
    Process for the preparation of cationic dyestuffs 失效
    阳离子染料的制备方法

    公开(公告)号:US4349670A

    公开(公告)日:1982-09-14

    申请号:US169580

    申请日:1980-07-17

    CPC分类号: C09B44/005 C09B26/04

    摘要: To prepare dyestuffs of the general formula ##STR1## in which R.sup.1 and R.sup.2 represent methyl or ethyl,n represents 0 or 1,B represents the divalent radical of a 5-membered or 6-membered heterocyclic ring system andX.sup.- represents an anion,and whereinthe ring a can be substituted by C.sub.1 - to C.sub.4 -alkyl radicals, C.sub.1 - to C.sub.4 -alkoxy radicals or halogen,compounds of the formula ##STR2## wherein R.sup.1, B and n have the meaning indicated above,m represents 0 or 1 andthe ring a can be substituted by C.sub.1 - to C.sub.4 -alkyl, C.sub.1 - to C.sub.4 -alkoxy or halogen,or of the formula ##STR3## in which B and R.sup.1 have the abovementioned meaning and the ring a can be substituted by C.sub.1 - to C.sub.4 -alkyl, C.sub.1 - to C.sub.4 -alkoxy or halogen,are reacted with arylsulphonic acid esters of the formula ##STR4## wherein R represents hydrogen, C.sub.1 - to C.sub.4 -alkyl or halogen andR.sup.2 represents methyl or ethyl,in the presence of water and acid-binding agents at temperatures of 20.degree.-70.degree. C., and, if appropriate, the arylsulphonate anion is replaced by another anion customary in dyestuff chemistry.

    摘要翻译: 为了制备通式“IMAGE”的染料,其中R1和R2表示甲基或乙基,n表示0或1,B表示5元或6元杂环系的二价基团,X表示阴离子, 并且其中环a可被C 1至C 4 - 烷基,C 1至C 4 - 烷氧基或卤素取代,其中R 1,B和n具有上述含义,式 1和环a可以被C 1〜C 4 - 烷基,C 1〜C 4 - 烷氧基或卤素取代,或式(Ⅷ)所示,其中B和R 1具有上述含义,并且环a可以被C1 与C 1-4烷基,C 1至C 4 - 烷氧基或卤素反应,与下式的芳基磺酸酯反应:其中R表示氢,C 1至C 4 - 烷基或卤素,R 2表示甲基或乙基, 的水和酸结合剂,温度为20-70℃,如果合适,将芳基磺酸根阴离子替换为 染料化学中另一种阴离子习惯。

    Triazinyl flavonate brighteners
    2.
    发明申请
    Triazinyl flavonate brighteners 审中-公开
    三嗪基黄酮增白剂

    公开(公告)号:US20090227712A1

    公开(公告)日:2009-09-10

    申请号:US11630060

    申请日:2005-06-15

    IPC分类号: C08K5/3492 C07D251/68

    摘要: The invention relates to compounds of formula (I) wherein R1, R2, R3 and R4 independently represent OR3 or NR6R7; R5, R6 and R7 independently represent hydrogen, substituted or unsubstituted alkyl, especially C1-C4 alkyl, or substituted or unsubstituted aryl, especially C6-C10 aryl; R6, R7 can also form an aliphatic or aromatic ring, together with the N atom to which they are bonded and optionally other heteroatoms; M represents hydrogen, an equivalent of a monovalent or bivalent metal ion, especially from the group of alkali metals or alkaline earth metals, or of an optionally organically substituted ammonium ion; and B1 represents a bivalent binding link.

    摘要翻译: 本发明涉及式(I)化合物,其中R 1,R 2,R 3和R 4独立地表示OR 3或NR 6 R 7; R5,R6和R7独立地表示氢,取代或未取代的烷基,特别是C1-C4烷基,或取代或未取代的芳基,特别是C6-C10芳基; R6,R7还可以与它们所键合的N原子和任选的其它杂原子一起形成脂族或芳族环; M表示氢,相当于一价或二价金属离子,特别是碱金属或碱土金属或任选有机取代的铵离子; B1表示二价结合连接。

    Alkanolammonium-containing triazinyl flavonate whiteners
    4.
    发明授权
    Alkanolammonium-containing triazinyl flavonate whiteners 有权
    含烷醇铵的三嗪基黄酮增白剂

    公开(公告)号:US07608168B2

    公开(公告)日:2009-10-27

    申请号:US11187735

    申请日:2005-07-22

    IPC分类号: D21H21/30 C09K11/06

    CPC分类号: D21H21/30 D21H17/28 D21H21/16

    摘要: A process for whitening paper in a size press includes contacting a cellulose sheet with a size press liquor that contains a surface size and a particular whitener containing sulfonate groups and cations, M, wherein at least 10% of all cations M have the formula in which R5 to R7, independently of one another, denote hydrogen, a C1-C4-alkyl radical or an optionally further substituted C2-C4-hydroxyalkyl radical, and R8 denotes an optionally further substituted C2-C4-hydroxyalkyl radical. The process provides superior paper whitening compared to a corresponding process in which the whitener cations are all sodium or potassium ions.

    摘要翻译: 用于在压片机中增白纸的方法包括使纤维素片材与含有表面尺寸的压片液和含有磺酸盐基团和阳离子M的特定白化剂接触,其中至少10%的所有阳离子M具有式 R 5至R 7彼此独立地表示氢,C 1 -C 4烷基或任选进一步取代的C 2 -C 4 - 羟基烷基,R 8表示任选进一步取代的C 2 -C 4羟烷基。 与其中增白剂阳离子全部为钠或钾离子的相应方法相比,该方法提供优异的纸张增白。

    Process for the preparation of pyridine-4-aldehyde phenylhydrazones
    5.
    发明授权
    Process for the preparation of pyridine-4-aldehyde phenylhydrazones 失效
    制备吡啶-4-醛苯肼的方法

    公开(公告)号:US4310664A

    公开(公告)日:1982-01-12

    申请号:US163362

    申请日:1980-06-26

    IPC分类号: C07D213/53 C09B55/00

    CPC分类号: C07D213/53

    摘要: Pyridine-4-aldehyde phenylhydrazones are prepared by catalytic hydrogenation of 4-cyano-pyridine under normal pressure or almost normal pressure in the presence of phenylhydrazine or nuclear-substitution products thereof, in an aqueous medium in the absence of organic solvents, at a pH value between 9 and 12, preferably between 9.5 and 11, and in a temperature range from 0.degree. to 60.degree. C.

    摘要翻译: 吡啶-4-醛苯腙通过在常压或几乎常压下,在苯肼或其核取代产物存在下,在不存在有机溶剂的水性介质中,在pH值下,通过4-氰基 - 吡啶的催化氢化来制备 值在9和12之间,优选在9.5和11之间,在0至60℃的温度范围内。

    Alkanolammonium-containing triazinyl flavonate whiteners
    6.
    发明申请
    Alkanolammonium-containing triazinyl flavonate whiteners 有权
    含烷醇铵的三嗪基黄酮增白剂

    公开(公告)号:US20060065381A1

    公开(公告)日:2006-03-30

    申请号:US11187735

    申请日:2005-07-22

    IPC分类号: D21H21/30

    CPC分类号: D21H21/30 D21H17/28 D21H21/16

    摘要: Process for whitening paper in the size press, characterized in that the size press liquor contains a whitener of the formula I in which X, independently of one another, denote a radical of the formula and R1 represents C1-C6-alkyl and R2 represents H, or R1 represents H and R2 represents C1-C6-alkyl, and, independently thereof, R3 represents H, methyl, ethyl, CH2CH2OH or CH2CH2OCH3, R1′ represents C1-C6-alkyl and R2′ represents H, or R1′ represents H and R2′ represents C1-C6-alkyl, and, independently thereof, R3′ represents H, methyl, ethyl, CH2CH2OH or CH2CH2OCH3 and R4 represents C1-C4-alkyl and M denotes H, one equivalent of an inorganic cation, in particular Li, Na, K, Ca, Mg or ammonium, or a substituted ammonium of the formula II in which R5 to R7, independently of one another, denote hydrogen, a C1-C4-alkyl radical or an optionally further substituted C2-C4-hydroxyalkyl radical, and R8 denotes an optionally further substituted C2-C4-hydroxyalkyl radical, at least 10 mol % of all cations M corresponding to the formula II.

    摘要翻译: 在压片机中增白纸的方法,其特征在于,压榨液含有式I的增白剂

    Process for the preparation of cationic hydrazone dyestuffs
    8.
    发明授权
    Process for the preparation of cationic hydrazone dyestuffs 失效
    制备阳离子腙染料的方法

    公开(公告)号:US4424349A

    公开(公告)日:1984-01-03

    申请号:US375775

    申请日:1982-05-06

    申请人: Heinz Giesecke

    发明人: Heinz Giesecke

    IPC分类号: C09B26/02 C09B26/04 C09B23/16

    CPC分类号: C09B26/04

    摘要: Dyestuffs of the general formula ##STR1## wherein R.sub.1 denotes alkyl, alkenyl, aralkyl or cycloalkyl, R.sub.2 denotes hydrogen, alkyl, alkenyl, aryl, aralkyl or cycloalkyl, or alkylene bonded to the ring a, R.sub.3 denotes hydrogen or one or more non-ionic substituents customary in dyestuff chemistry and X.sup.- denotes an anion, wherein an aromatic or cycloaliphatic ring can be fused to the ring a, and wherein the radicals mentioned can carry non-ionic substituents customary in dyestuff chemistry, are obtained, if 4-methylpyridine is treated with a quaternizing agent of the formula R.sub.1 --X (II) wherein X denotes a group which can be split off in the form of the anion X.sup.-, within a temperature range from -20.degree. C. up to the boiling point of the system, the resulting reaction product is reacted with a base and a nitrite of the formula R--O--N.dbd.O (III) wherein R denotes an organic radical, within a temperature range from -20.degree. C. to +60.degree. C., and the product is then reacted, at a pH value below 7, with a hydrazine of the formula ##STR2## or with a hydrazosulphonate of the formula ##STR3## wherein M.sup.+ represents a monovalent metal cation or an organically substituted ammonium cation or one equivalent of a divalent cation, within a temperature range from -20.degree. C. up to the boiling point of the system, and the product is reacted, if appropriate, if R.sub.2 is initially hydrogen and is intended to be different from hydrogen in the final product, with a compound of the formula R.sub.2 --X (VI) wherein R.sub.2 denotes alkyl, alkenyl or aralkyl.

    摘要翻译: 通式(I)的染料其中R1表示烷基,烯基,芳烷基或环烷基,R2表示氢,烷基,烯基,芳基,芳烷基或环烷基,或键合到环a的亚烷基,R3表示氢或一个或 在染料化学中通常有更多非离子取代基,X-表示阴离子,其中芳族或脂环族环可以与环a稠合,并且其中所提到的基团可以携带染料化学中常规的非离子取代基,如果 用式R 1 -X(II)的季铵化剂处理4-甲基吡啶,其中X表示可以以阴离子X的形式分离的基团,其温度范围为-20℃至 在-20℃至+ 60℃的温度范围内,将所得反应产物与碱和式RON = O(III)的亚硝酸盐反应,其中R表示有机基团。 ,然后使产物在pH值低于7的条件下反应 式(IV)的肼或与式“IMAGE”的肼基磺酸盐反应,其中M +代表一价金属阳离子或有机取代的铵阳离子或一当量二价阳离子,在-20℃ 如果合适的话,如果R2最初是氢并且最终产物中的氢意图不同于氢,则产物与式R2-X(VI)的化合物反应, 其中R2表示烷基,烯基或芳烷基。