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ChemInform Abstract: Synthetic Approaches Towards Macrocyclic Sulfonyl Crown Formazans.

โœ Scribed by Y. A. IBRAHIM; A. H. M. ELWAHY; A. A. ABBAS

Publisher
John Wiley and Sons
Year
2010
Weight
30 KB
Volume
28
Category
Article
ISSN
0931-7597

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Synthetic approaches toward macrocyclic
Synthetic approaches toward macrocyclic sulfonyl crown formazans
โœ Yehia A. Ibrahim; Ahmed H. M. Elwahy; Ashraf A. Abbas ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 389 KB ๐Ÿ‘ 1 views

Coupling of diazonium salts with ethyl sulfonylpyruvates 1-3 or arenesulfonylacetic acids 14,15 afforded good yields of the corresponding 1,5-symmetrically disubstituted-3-sulfonylformazans 4-1 1. The new sulfonyl macrocyclic crown formazans 25-32 were prepared by coupling of the appropriate bisdiaz