H
Hiroo Toi
Researcher at Osaka University
Publications - 62
Citations - 1487
Hiroo Toi is an academic researcher from Osaka University. The author has contributed to research in topics: Porphyrin & Molecular recognition. The author has an hindex of 21, co-authored 62 publications receiving 1464 citations.
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Polar host-guest interaction. Binding of nonionic polar compounds with a resorcinol-aldehyde cyclooligomer as a lipophilic polar host
TL;DR: Les substrats non polaires etudies sont les glycerol, D-glucose,D-ribose, riboflavine, vitamine B 12 et hemine.
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CH-.pi. interaction as an important driving force of host-guest complexation in apolar organic media. Binding of monools and acetylated compounds to resorcinol cyclic tetramer as studied by proton NMR and circular dichroism spectroscopy
TL;DR: In this paper, the CH-π interaction plays an important role in the complexation involving resorcinol cyclic tetramer 1 in chloroform, and the largest complexation-induced 1 H NMR upfield shift for a bound guest occurs at the terminal methyl group, which must therefore be deeply incorporated in the aromatic cavity of the host.
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Highly cooperative binding of alkyl glucopyranosides to the resorcinol cyclic tetramer due to intracomplex guest-guest hydrogen-bonding: solvophobicity/solvophilicity control by an alkyl group of the geometry, stoichiometry, stereoselectivity, and cooperativity
Yasuaki Kikuchi,Yasutaka Tanaka,Supriyanto Sutarto,Kenji Kobayashi,Hiroo Toi,Yasuhiro Aoyama +5 more
TL;DR: The resorcinol cyclic tetramer (1) binds methyl and n-octyl glucopyranosides via hydrogen-bonding in apolar organic media as mentioned in this paper, which results in a 2:1 (host to guest) sugar-encapsulation complex with remarkable β/α anomer selectivity.
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Stabilization of Sugar-Boronic Esters of Indolylboronic Acid in Water via Sugar-Indole Interaction: A Notable Selectivity in Oligosaccharides.
TL;DR: In this article, the binding constants for maltodextrins (α-1,4-linked glucose oligomers) increase with increasing chain lengths or repetition numbers of the glucose unit.
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Molecular recognition and stereoselectivity : geometrical requirements for the multiple hydrogen-bonding interaction of diols with a multidentate polyhydroxy macrocycle
TL;DR: In this paper, the selectivities in the diol binding were discussed in terms of multiple hydrogen bonding of diol and 1 and the stereoselectivities of regio-and stereoisomers of cyclohexanediol depend on the configuration (axial-equatorial>diequatorial) and relative positions (1,4>>1,2>1,3) of the two OH groups involved.