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    Bis(indolyl)ethylene process
    56.
    发明授权
    Bis(indolyl)ethylene process 失效
    双（吲哚基）乙烯工艺

    公开(公告)号：US4897494A

    公开(公告)日：1990-01-30

    申请号：US261945

    申请日：1988-10-24

    Applicant: Hubertus Psaar ,  Horst Berneth

    Inventor： Hubertus Psaar ,  Horst Berneth

    IPC: C07D209/14 ,  C07D209/08 ,  C07D209/24

    CPC classification number: C07D209/08 ,  C07D209/24

    Abstract: Bis(indolyl)ethylenes of the formula ##STR1## wherein R.sub.1 denotes hydrogen, alkyl, aralkyl or aryl,R.sub.2 denotes hydrogen, alkyl or aryl,R.sub.3 denotes hydrogen, alkyl, alkenyl, COOH or aryl andR.sub.4 denotes hydrogen, alkyl, alkoxy, cycloalkoxy or halogen, andthese substituents, in turn, can carry non-ionic radicals or a carboxyl group,are obtained by reaction of indoles of the formula ##STR2## with carboxylic acids of the formulaR.sub.3 --CH.sub.2 --COOH (III)their chlorides, esters, for example alkyl esters, or anhydrides in the presence of phosphorus oxychloride.

    Abstract translation: 式（I）的双（吲哚基）乙烯其中R1表示氢，烷基，芳烷基或芳基，R2表示氢，烷基或芳基，R3表示氢，烷基，烯基，COOH或芳基，R4表示氢，烷基 ，烷氧基，环烷氧基或卤素，并且这些取代基又可以携带非离子基团或羧基，通过式（II）的吲哚与式R 3 -CH 2 - 的羧酸反应获得， COOH（III）它们的氯化物，酯，例如烷基酯或酸酐，在磷酰氯的存在下。

    Chromogenic 4,4-diaryldihydroquinazolones
    57.
    发明授权
    Chromogenic 4,4-diaryldihydroquinazolones 失效
    显色的4,4-二芳基二氢喹唑啉酮

    公开(公告)号：US4754034A

    公开(公告)日：1988-06-28

    申请号：US789686

    申请日：1985-10-21

    Applicant: Horst Berneth ,  Alfred Brack ,  Karlheinrich Meisel

    Inventor： Horst Berneth ,  Alfred Brack ,  Karlheinrich Meisel

    IPC: B41M5/323 ,  B41M5/136 ,  C07C275/46 ,  C07C275/50 ,  C07C275/54 ,  C07C311/61 ,  C07D239/82 ,  C07D401/06 ,  C07D401/12 ,  C07D403/04 ,  C07D403/06 ,  C07D403/10 ,  C07D413/06 ,  C09B11/00 ,  C09B11/04 ,  C07D239/80

    CPC classification number: C07D401/06 ,  B41M5/136 ,  C07C275/46 ,  C07C275/50 ,  C07C275/54 ,  C07C311/61 ,  C07D239/82 ,  C07D401/12 ,  C07D403/06 ,  C07D403/10 ,  C07D413/06 ,  C09B11/04

    Abstract: 4,4-diaryldihydroquinazolones of the formula ##STR1## wherein X.sup.1, X.sup.2 and X.sup.3, independently of one another, denote hydrogen, halogen, alkyl, aryl, alkanoylamino, aroylamino, heteryl, NY.sup.1 Y.sup.2, OY.sup.3 or SY.sup.3, at least one of the radicals X.sup.1, X.sup.2 or X.sup.3 standing for NY.sup.1 Y.sup.2, OY.sup.3 or SY.sup.3,R.sup.1 denotes hydrogen, alkyl, cycloalkyl, aralkyl, aryl or the members of a bridge to the o-carbon of ring C,R.sup.2 denotes a radical of an acid,Y.sup.1, Y.sup.2 and Y.sup.3, independently of one another, denote hydrogen, alkyl, cycloalkyl, aralkyl aryl or heteryl or the remaining members of a 5- or 6-membered ring which reaches to one of the o-position benzene C atoms and may contain further hetero atoms orY.sup.1 +Y.sup.2 denote the remaining members of a 5- or 6-membered ring which may contain further hetero atoms andthe rings A, B and C and the radicals mentioned can in turn carry nonionic substituents customary in dye-stuff chemistry, find utility in pressure-copyable thermoreactive and electrochromic recording materials.

    Abstract translation: 式（I）的4-二芳基二氢喹唑啉酮其中X 1，X 2和X 3彼此独立地表示氢，卤素，烷基，芳基，烷酰基氨基，芳酰氨基，异酰基，NY1Y2，OY3或SY3，至少一个 的基团X 1，X 2或X 3代表NY1Y2，OY3或SY3，R1表示氢，烷基，环烷基，芳烷基，芳基或与环C的邻碳的桥的成员，R2表示酸的基团， Y 1，Y 2和Y 3彼此独立地表示氢，烷基，环烷基，芳烷基芳基或杂芳基或5-位或6-元环的其余成员，其到达位置苯C原子之一并且可以含有 另外的杂原子或Y1 + Y2表示可含有更多杂原子的5或6元环的剩余成员，并且环A，B和C以及所提及的基团可以依次携带染料化学中常规的非离子取代基 ，可用于压力可复制的热反应和电致变色记录材料。

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