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Volumn 46, Issue 14, 2007, Pages 2508-2511

A binol-strapped calix[4]pyrrole as a model chirogenic receptor for the enantioselective recognition of carboxylate anions

Author keywords

Anions; Chirality; Enantiomeric discrimination; Receptors; Supramolecular chemistry

Indexed keywords

BINDING STRAPS; CHIRAL CARBOXYLATE ANIONS; CHIROGENIC RECEPTOR; TETRAPYRROLIC CORE;

EID: 34250836891     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.200604161     Document Type: Article
Times cited : (76)

References (45)
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    • a) Supramolecular Chemistry of Anions (Eds.: A. Bianchi, K. Bowman-James, E. García-España), Wiley, New York, 1997;
    • (1997) Supramolecular Chemistry of Anions
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    • (2001) Chem. Int. Ed , vol.40 , pp. 486-516
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    • anion sensors: d A. W. Czanik, Acc. Chem. Res. 1994, 27, 302-308;
    • anion sensors: d) A. W. Czanik, Acc. Chem. Res. 1994, 27, 302-308;
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    • (1996) Comprehensive Supramolecular Chemistry
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    • Eds, K. M. Kadish, K. M. Smith, R. Guilard, Academic Press, San Diego
    • c) J. L. Sessler, P. A. Gale in The Porphyrin Handbook, Vol. 6 (Eds.: K. M. Kadish, K. M. Smith, R. Guilard), Academic Press, San Diego, 1999, pp. 257-278;
    • (1999) The Porphyrin Handbook , vol.6 , pp. 257-278
    • Sessler, J.L.1    Gale, P.A.2
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    • (2002) Chem. Int. Ed , vol.41 , pp. 1757-1759
    • Angew1
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    • For a recent review of chiral recognition of anions, see: a, for other selected papers, see
    • For a recent review of chiral recognition of anions, see: a) I. Stibor, P. Zlatuskova, Top. Curr. Chem. 2005, 255, 31-63; for other selected papers, see:
    • (2005) Top. Curr. Chem , vol.255 , pp. 31-63
    • Stibor, I.1    Zlatuskova, P.2
  • 34
    • 34250822454 scopus 로고    scopus 로고
    • 13C NMR spectra of (R)-1 are identical to those of (S)-1.
    • 13C NMR spectra of (R)-1 are identical to those of (S)-1.
  • 35
    • 34250876457 scopus 로고    scopus 로고
    • The signals for the four pyrrole NH protons of calix[4]pyrrole (S)-1 were found to disappear upon the addition of 1.0-1.2 equivalents of (S)-2-phenylbutyrate.
    • The signals for the four pyrrole NH protons of calix[4]pyrrole (S)-1 were found to disappear upon the addition of 1.0-1.2 equivalents of (S)-2-phenylbutyrate.
  • 37
    • 34250877057 scopus 로고    scopus 로고
    • ITC measurements were performed as follows: Solutions of the chosen receptor in acetonitrile were made up so as to provide a receptor concentration range of 0.1-1 mM. These solutions were then individually titrated with the appropriate alkylammonium salts at (30 ± 0.01)°C. The original heat pulses were normalized using reference titrations carried out using the same salt solution but in pure acetonitrile.
    • b) ITC measurements were performed as follows: Solutions of the chosen receptor in acetonitrile were made up so as to provide a receptor concentration range of 0.1-1 mM. These solutions were then individually titrated with the appropriate alkylammonium salts at (30 ± 0.01)°C. The original heat pulses were normalized using reference titrations carried out using the same salt solution but in pure acetonitrile.
  • 38
    • 34250840760 scopus 로고    scopus 로고
    • Non-linear curve-fittings were performed with Origin 7.0 (OriginLab Co.) using a 1:1 fitting program provided by the ITC manufacturer (MicroCal, Inc.).
    • Non-linear curve-fittings were performed with Origin 7.0 (OriginLab Co.) using a 1:1 fitting program provided by the ITC manufacturer (MicroCal, Inc.).
  • 39
    • 34250853668 scopus 로고    scopus 로고
    • An initial conformational analysis of each molecular system was performed by molecular dynamics (MD) simulation using the SANDER module of AMBER employing the parm99 force field.[14] From the MD simulation trajectory for each molecular system, a total of 200 structures were collected which were then subjected to an optimization procedure using the AM1 semi-empirical method[15] to find the energy minima that would be used as initial structures for the DFT calculations at the B3LYP/ 3-21G level[16] using the Gaussian 98 package.[17] Frequency calculations were performed to verify the identity of each stationary point as a minimum. To provide a more complete description of the interactions with anionic guests, single-point energy calculations were then carried out at the B3LYP/6-31G+ G* level using the optimized geometries obtained from the B3LYP/3-21G* analyses
    • [17] Frequency calculations were performed to verify the identity of each stationary point as a minimum. To provide a more complete description of the interactions with anionic guests, single-point energy calculations were then carried out at the B3LYP/6-31G+ G* level using the optimized geometries obtained from the B3LYP/3-21G* analyses.
  • 40
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    • University of California, San Francisco
    • D. A. Case, D. A. Pearlman, J. W. Caldwell, et al. see Supporting Information, AMBER 7, University of California, San Francisco, 2002.
    • (2002) Supporting Information, AMBER 7
  • 44
    • 34250888301 scopus 로고    scopus 로고
    • M. J. Frisch et al. see Supporting Information, Gaussian 98, Revision A.7 Gaussian, Inc., Pittsburgh PA, 1998.
    • M. J. Frisch et al. see Supporting Information, Gaussian 98, Revision A.7 Gaussian, Inc., Pittsburgh PA, 1998.
  • 45
    • 34250885314 scopus 로고    scopus 로고
    • Subsequent to submission of this manuscript a single-crystal X-ray structure of a 3,3′-dibromonaphthyl derivative of (S)-1 was obtained. This structure proved analogous to that calculated for receptor (S)-1 in the absence of an added substrate.
    • Subsequent to submission of this manuscript a single-crystal X-ray structure of a 3,3′-dibromonaphthyl derivative of (S)-1 was obtained. This structure proved analogous to that calculated for receptor (S)-1 in the absence of an added substrate.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.