PRODUCTION OF 2,2',6,6'-BIPHENYLTETRACARBOXYLIC ACID AND ITS DIANHYDRIDE

被引：2
作者：
CALLIGHA.RH
MASCIANT.PX
GRUBBER, MJ
MORGAN, MS
机构：
[1] Applied Research Laboratory, Chemicals Division, United States Steel Corp., Monroeville
[2] Mellon Institute, Carnegie-Mellon University, Pittsburgh
来源：
INDUSTRIAL & ENGINEERING CHEMISTRY PRODUCT RESEARCH AND DEVELOPMENT | 1969年 / 8卷 / 04期
关键词：
D O I：
10.1021/i360032a019
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
2,2’,6,6’-Biphenyltetracarboxylic acid may be produced by treating an ethyl acetate solution of technical-grade pyrene at 0° to 5° C. with 2.5 equivalents of moist ozone, decomposing the ozonide with a stoichiometric amount of pyridine, and oxidizing the intermediates with hydrogen peroxide. A good-quality tetraacid is obtained in 91% yield. If necessary, the product may be purified by crystallization from a dimethylformamide-acetic acid mixture. The tetraacid dissolves in hot acetic anhydride to form a mixed anhydride, which can be vacuum-sublimed to yield the dianhydride. © 1969, American Chemical Society. All rights reserved.
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页码：427 / &
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