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Synthesis and characterization of some new lanthanide(III) chelates with 1,4-bis-(2′-hydroxyphenylazomethine) phenylene

✍ Scribed by M. M. Moustafa


Publisher
Springer Vienna
Year
1995
Tongue
English
Weight
393 KB
Volume
126
Category
Article
ISSN
0026-9247

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✍ Raafat M. Shaker 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 88 KB

A series of new 4,4 -(1,4-phenylene)dipyrimidines 5a-c, 8a-c, and 10a,b have been synthesized from the reaction of amidines 1a-c with the dienaminone 2, bis-chalcone 6, or ylidenemalononitrile 9. The reaction of malononitrile and ethyl cyanoacetate with 2 gave 6,6 -(1,4-phenylene)di(pyridin-2(1H)-on