| 发明名称 |
Thallium catalyzed multidimensional ester oligomers |
| 摘要 |
The yield of fully substituted, multidimensional aromatic hubs in the condensation of hydroxyl and acid halide functionalities is improved by adding a thallium catalyst, such as thallium ethoxide (Tl-OC2H5), in the solvent.
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| 申请公布号 |
US5618907(A) |
申请公布日期 |
1997.04.08 |
| 申请号 |
US19950461335 |
申请日期 |
1995.06.05 |
| 申请人 |
THE BOEING COMPANY |
发明人 |
LUBOWITZ, HYMAN R.;SHEPPARD, CLYDE H.;STEPHENSON, RONALD R. |
| 分类号 |
C07C67/14;C08G63/685;C08G63/82;C08G63/84;(IPC1-7):C08G63/00;C08G63/68 |
主分类号 |
C07C67/14 |
| 代理机构 |
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代理人 |
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| 主权项 |
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