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Volumn 10, Issue 19, 2004, Pages 4703-4707

Chiral amplification in macromolecular helicity assisted by noncovalent interaction with achiral amines and memory of the helical chirality

Author keywords

Chiral amplification; Circular dichroism; Helical structures; Polymers

Indexed keywords

ACETYLENE; ADDITION REACTIONS; ALCOHOLS; AMINES; AMPLIFICATION; COMPLEXATION; POLYMERS; ULTRAVIOLET RADIATION;

EID: 5444228791     PISSN: 09476539     EISSN: None     Source Type: Journal    
DOI: 10.1002/chem.200400381     Document Type: Article
Times cited : (51)

References (58)
  • 2
    • 0033517692 scopus 로고    scopus 로고
    • For a recent review, see. a) M. M. Green, J.-W Park, T. Sato, A. Teramoto, S Lifson, R. L B Selinger, J V Selinger, Angew Chem 1999, 111, 3329-3345, Angew. Chem Int Ed 1999, 38, 3138-3154,
    • (1999) Angew. Chem Int Ed , vol.38 , pp. 3138-3154
  • 3
    • 0001592561 scopus 로고    scopus 로고
    • b) B. L. Feringa, R A van Delden, Angew Chem 1999, 111, 3624-3645, Angew Chem Int Ed 1999, 38, 3418-3438, and references therein.
    • (1999) Angew Chem , vol.111 , pp. 3624-3645
    • Feringa, B.L.1    Van Delden, R.A.2
  • 4
    • 0033521221 scopus 로고    scopus 로고
    • and references therein
    • b) B. L. Feringa, R A van Delden, Angew Chem 1999, 111, 3624-3645, Angew Chem Int Ed 1999, 38, 3418-3438, and references therein.
    • (1999) Angew Chem Int Ed , vol.38 , pp. 3418-3438
  • 6
    • 0000655043 scopus 로고    scopus 로고
    • b) C. Girard, H B. Kagan, Angew Chem 1998, 110, 3088-3127; Angew Chem Int Ed 1998, 37, 2922-2959,
    • (1998) Angew Chem , vol.110 , pp. 3088-3127
    • Girard, C.1    Kagan, H.B.2
  • 7
    • 0032538773 scopus 로고    scopus 로고
    • b) C. Girard, H B. Kagan, Angew Chem 1998, 110, 3088-3127; Angew Chem Int Ed 1998, 37, 2922-2959,
    • (1998) Angew Chem Int Ed , vol.37 , pp. 2922-2959
  • 9
    • 0001552544 scopus 로고    scopus 로고
    • d) R Noyori, Angew Chem 2002, 114, 2108-2123, Angew Chem Int Ed 2002, 47, 2008-2022
    • (2002) Angew Chem , vol.114 , pp. 2108-2123
    • Noyori, R.1
  • 10
    • 4544230220 scopus 로고    scopus 로고
    • d) R Noyori, Angew Chem 2002, 114, 2108-2123, Angew Chem Int Ed 2002, 47, 2008-2022
    • (2002) Angew Chem Int Ed , vol.47 , pp. 2008-2022
  • 20
  • 21
    • 0031573957 scopus 로고    scopus 로고
    • For intermolecular sergeants and soldiers effects in supramolecular system, see a) A. R. A Palmans, J. A J. M Vekemans, E E Havinga, E. W Meijer, Angew. Chem 1997, 109, 2763-2765; Angew Chem Int. Ed Engl 1997, 36, 2648-2651,
    • (1997) Angew Chem Int Ed Engl , vol.36 , pp. 2648-2651
  • 26
    • 0035796422 scopus 로고    scopus 로고
    • e) L J. Prins, D N. Reinhoudt, P. Timmerman, Angew Chem 2001, 113, 2446-2492, Angew Chem. Int Ed 2001, 40, 2382-2426,
    • (2001) Angew Chem Int Ed , vol.40 , pp. 2382-2426
  • 28
    • 58149184505 scopus 로고    scopus 로고
    • for intramolecular sergeants and soldiers effects in supramolecular system
    • g) I. Huc, Eur. J. Org. Chem 2004, 17-29,
    • (2004) Eur J Org Chem , pp. 17-29
    • Huc, I.1
  • 29
    • 0032142592 scopus 로고    scopus 로고
    • for intramolecular sergeants and soldiers effects in supramolecular system, see h) R Fiesel, U. Scherf, Acta Polym 1998, 49, 445-449,
    • (1998) Acta Polym , vol.49 , pp. 445-449
    • Fiesel, R.1    Scherf, U.2
  • 39
    • 0034674340 scopus 로고    scopus 로고
    • e) J. M Rivera, S. L Craig, T. Martin, J. Rebek, Jr , Angew Chem 2000, 112, 2214-2216, Angew Chem Int Ed 2000, 39, 2130-2132;
    • (2000) Angew Chem Int Ed , vol.39 , pp. 2130-2132
  • 47
    • 0037429424 scopus 로고    scopus 로고
    • l) M Zieglar, A V Davis, D. W. Johnson, K. N Raymond, Angew Chem 2003, 115, 689-692, Angew. Chem Int Ed 2003, 42, 665-668
    • (2003) Angew Chem Int Ed , vol.42 , pp. 665-668
  • 48
    • 5444252966 scopus 로고    scopus 로고
    • note
    • -1, respectively These are much larger than that of (R)-2 (57 ± 2); see references [6b, 6c, 7a].
  • 49
    • 5444245361 scopus 로고    scopus 로고
    • note
    • 4 and further increased slowly with time These results indicate that the induced helix of the poly-1 is dynamic in nature, the helix-sense and its proportion are determined by the chirality of 2, and (R)-2 complexed with poly-1 can exchange slowly with 5, probably with maintaining the induced macromolecular helicity
  • 50
    • 5444254764 scopus 로고    scopus 로고
    • note
    • Water may affect an acid-base complexation in DMSO, and the effect of water on the ICD of poly-1 in the presence of (R)-2 and 5 ([(R)-2]/[poly-1]/[5] = 0 5.1.2.5) was investigated The ICD intensity gradually decreased with an increase in the amount of water, but the effect is negligible when the water content was less than 5%.
  • 51
    • 5444228672 scopus 로고    scopus 로고
    • note
    • The ICD intensities of the copolymers of an optically active phenyl-acetylene derivative bearing an (R)-(1-phenylethyl)carbamoyloxy group at the para position and achiral comonomers prepared with a rhodium catalyst increased with an increase in the bulkiness of the substituents on the comonomers.[4a,f] Moreover, the magnitude of the ICD induced on poly-1 with chiral amines had a similar tendency and increased with an increase in the bulkiness of the chiral amines [6]
  • 52
    • 5444250785 scopus 로고    scopus 로고
    • note
    • -1, [5]/[poly-1 = 10) by the SEC fractionation by using pure DMSO as the eluent These results indicate that both (R)-2 and 5 complexed with poly-1 are completely removed during the SEC fractionation
  • 53
    • 5444235195 scopus 로고    scopus 로고
    • note
    • Recently, chiral amplification has been combined with the chiral memory concept for the successful formation of enantiomeric assemblies, see reference [7k]


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.