发明名称 |
Neue Cyaninsalz- und Merocyanin-Sensibilisierungsfarbstoffe |
摘要 |
1300641 Pyrido-benzimidazoles MINNESOTA MIN3G & MFG CO 20 Jan 1970 [22 Jan 1969] 2775/70 Heading C2C [Also in Divisions C4 and G2] 5-Aminobenzimidazoles are reacted with methyl vinyl ketone to give a compound of formula (in which R and R 1 are each H or optionally substituted alkyl) which is then converted to a quaternary salt. In an example, a compound in which R<SP>11</SP> is CH 3 and R 1 is C 2 H 5 is prepared by heating 5 - amino - 1 - ethyl - 2 - methylbenz. imidazole, methyl vinyl ketone, FeCl 3 .6H 2 O and ZnCl 2 in ethanol and treating with NaOH; the compound is then quaternized with C 2 H 5 I. |
申请公布号 |
DE2002409(A1) |
申请公布日期 |
1970.07.30 |
申请号 |
DE19702002409 |
申请日期 |
1970.01.20 |
申请人 |
MINNESOTA MINING AND MANUFACTURING CO. |
发明人 |
MARIO GANDINO,DR.;MAGNANI,LUIGI |
分类号 |
G03C1/12;C09B23/00;C09B23/04;C09B23/06;C09B23/08;C09B23/10 |
主分类号 |
G03C1/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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