发明名称 |
3-aminophenyl-3-(phenylsulfonyl)-1,1-bis(aminophenyl/indol-3-yl) propenes |
摘要 |
1-A-1-B-3-(2-R2-4-N-R-N-R1-aminophenyl)-3-(-4-R3-phenylsulfonyl)prop-1 -ene useful as color formers, particularly in transfer imaging, pressure-sensitive and thermal-responsive carbonless duplicating systems, are prepared by the interaction of the corresponding 1-A-1-B-ethene with the appropriate 2-R2-4-N-R-N-41-benzaldehyde and the appropriate 4-R3-benzenesulfinic acid in the presence of an acidic catalyst.
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申请公布号 |
US4895958(A) |
申请公布日期 |
1990.01.23 |
申请号 |
US19890292709 |
申请日期 |
1989.01.03 |
申请人 |
HILTON DAVIS CO. |
发明人 |
HUNG, WILLIAM M.;KASSNER, JAMES E. |
分类号 |
B41M5/136;B41M5/30;B41M5/382;B41M5/385;C07C317/14;C07D295/096 |
主分类号 |
B41M5/136 |
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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