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Fischer cyclization of N, N-diaryl- and N-aryl-N-hetarylhydrazines

โœ Scribed by N. M. Sharkova; N. F. Kucherova; V. A. Zagorevskii


Book ID
112492142
Publisher
Springer US
Year
1974
Tongue
English
Weight
85 KB
Volume
10
Category
Article
ISSN
0009-3122

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โœ Jinhua J Song; Nathan K Yee ๐Ÿ“‚ Article ๐Ÿ“… 2001 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 72 KB

1-Aryl-1H-indazoles were synthesized by the palladium-catalyzed intramolecular amination [Pd(OAc) 2 /dppf/tBuONa (150 mol%)/toluene/90ยฐC] of the corresponding N-aryl-N%-(o-bromobenzyl)hydrazines. It was further demonstrated that cyclization of [N-aryl-N%-(o-bromobenzyl)-hydrazinato-N%]-triphenylphos