Synthesis and binding property of a novel tripodal hexadentate ligand having catechol moieties

Tetrahedron Letters

Volumn 39, Issue 34, 1998, Pages 6211-6214

  Hayashi, Minoru ^a   Hiratani, Kazuhisa ^a,b   Kina, Shin Ichiro ^a   Ishii, Megumi ^a   Saigo, Kazuhiko ^a  

^a UNIVERSITY OF TOKYO   (Japan)

^b JRCAT Natl Inst for Adv I   (Japan)

Author keywords

Host compound; Ionophore; Iron and compounds; Rearrangement

Indexed keywords

ACETONITRILE; CATECHOL DERIVATIVE; COLLIDINE; LIGAND;

ARTICLE; LIGAND BINDING; MOLECULAR DYNAMICS; MOLECULAR INTERACTION; REACTION ANALYSIS; SYNTHESIS;

EID: 0032552218     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4039(98)01278-7     Document Type: Article

References (11)

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6. b) K. Hiratani, K. Kasuga, M. Goto, H. Uzawa, J. Am. Chem. Soc., 1997, 119, 12677.
7. 13C NMR 18.8, 25.0, 30.0, 44.7, 61.4, 66.4, 94.0, 115.7, 141.8; IR (neat) 3495, 1743, 1658, 1118, 904.
8. [7] J. Villieras, M. Rambaud, Org. Synth. Coll. Vol. 8, 265.
9. 13C NMR 70.8, 71.2, 72.0, 113.9, 115.1, 116.7, 120.0, 122.4, 126.6, 138.0, 140.9, 145.7, 146.6; IR (neat) 3400, 1500, 1460, 1260, 1220; FABMS (M+H) 654.
10. 13C NMR 34.2, 72.0, 73.8, 113.5, 115.8, 121.2, 121.6, 126.5, 127.9, 137.5, 141.2, 144.0; IR (neat) 3400, 2880, 1480, 1360, 1280, 1080; FABMS (M+H) 654.
11. 3) with a clear isosbectic point, and no other complex was formed even though an excess base was added. Thus, the complex formed during titration (λmax 528 nm) would be a neutral complex, where three of the hydroxyl groups in the ligand were deprotonated and the others were protonated.