Efficient synthesis of 3-substituted indazoles using Pd-catalyzed intramolecular amination reaction of N-tosylhydrazones

Chemistry Letters

Volumn 33, Issue 8, 2004, Pages 1026-1027

  Inamoto, Kiyofumi ^a   Katsuno, Mika ^a   Yoshino, Takashi ^a   Suzuki, Ikue ^a   Hiroya, Kou ^a   Sakamoto, Takao ^a  

^a TOHOKU UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

HYDRAZONE DERIVATIVE; INDAZOLE DERIVATIVE; PALLADIUM;

AMINATION; ARTICLE; CATALYSIS; CATALYST; CHEMICAL MODIFICATION; CHEMICAL REACTION KINETICS; QUANTUM YIELD; REACTION ANALYSIS; SUBSTITUTION REACTION;

EID: 8844228245     PISSN: 03667022     EISSN: None     Source Type: Journal    
DOI: 10.1246/cl.2004.1026     Document Type: Article

References (17)

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15. 13C NMR (steric effect), HMQC, and NOESY. 1a; 65% (single isomer), 1b; 96% (1.3:1), 1c; 70% (5:1), 1d; 36% (6:1), 1e; 35% (6:1), 1f; 80% (single isomer), 1g; 99% (single isomer), 1h; 73% (single: isomer), 1i; 81% (E:Z = 4:1), 1j; 48% (E:Z = 1:8), 1k; 99% (E:Z = 1:1).
16. 2 column chromatography to give the indazoles.
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