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Coordination compounds of samarium with acyldihydrazones of saturated dicarboxylic acids and 3-methyl-1-phenyl-4-formylpyrazol-5-one

✍ Scribed by Shul’gin, V. F.; Bekirova, Z. Z.; Konnik, O. V.; Meshkova, S. B.; Kiriyak, A. V.; Aleksandrov, G. G.; Eremenko, I. L.


Book ID
125393522
Publisher
SP MAIK Nauka/Interperiodica
Year
2014
Tongue
English
Weight
667 KB
Volume
59
Category
Article
ISSN
0036-0236

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✍ Metwally, Saoud A. M. ;El-Naggar, Galal M. ;El-Emary, Talaat I. 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 231 KB 👁 1 views

## Abstract The reaction of some active methylene compounds with 4‐(dicyanomethylene)‐3‐methyl‐1‐phenyl‐2‐pyrazoline‐5‐one (1a) has been investigated. This reaction involves a Michael addition to afford 4‐spirocyclobutenes 3 or cyclopyran‐2‐pyrazoline‐5‐ones 4, depending on the active methylene der