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ChemInform Abstract: A Simple and Efficient Synthesis of 1,6-Disubstituted 1,4,5,6-Tetrahydropyridazines by Ring Enlargement of 2,5-Dibenzotriazolyl-N-aminopyrrolidines.

โœ Scribed by A. R. KATRITZKY; D. P. M. PLEYNET; B. YANG; J. YAO


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

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ChemInform Abstract: Synthesis and Struc
โœ N. KATANO; Y. SUGIHARA; A. ISHII; J. NAKAYAMA ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› John Wiley and Sons โš– 34 KB ๐Ÿ‘ 1 views

Synthesis and Structure of (2,5)Thiophenophanes (n = 4-6). -The title compounds like (II) and (IV) are prepared by cyclization of the corresponding linear dibromo derivatives (I) and (III), resp., on reactions with Na 2 S. Best results are obtained in the presence of Cs 2 CO 3 . The X-ray structura