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2,3-Diazabuta-1,3-diene-1,4-diamines (1,4-Disubstituted) and N1-Acylamidrazones from Nitriles and Bis(diethylalumino)-Substituted Amidrazones and Acid Hydrazides

✍ Scribed by Prof. Dr. Th. Kauffmann; Dipl.-Ing. L. Bán; cand. chem. D. Kuhlmann


Publisher
John Wiley and Sons
Year
1967
Tongue
English
Weight
220 KB
Volume
6
Category
Article
ISSN
0044-8249

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Synthesis and properties of soluble arom
✍ Guey-Sheng Liou 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 152 KB 👁 1 views

Aromatic tetracarboxylic dianhydride having crank and twisted noncoplanar structure, 2,2 -bis(3,4-dicarboxyphenoxy)-1,1 -binaphthyl dianhydride, was synthesized by the reaction of 4-nitrophthalonitrile with 2,2 -dihydroxy-1,1 -binaphthyl, followed by alkaline hydrolysis of the intermediate bis(ether