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Volumn 47, Issue 44, 2006, Pages 7775-7778

A stereoselective synthesis of asymmetrically substituted calix[4]arenecarbamates

Author keywords

Asymmetric synthesis; Calixarenes; Chirality

Indexed keywords

CALIXARENE; CARBAMIC ACID DERIVATIVE; ISOCYANIC ACID DERIVATIVE;

EID: 33748967953     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2006.08.095     Document Type: Article
Times cited : (37)

References (34)
  • 1
    • 0003277099 scopus 로고    scopus 로고
    • Calixarenes revisited
    • Stoddart J.F. (Ed), Royal Society of Chemistry, Cambridge
    • Gutsche C.D. Calixarenes revisited. In: Stoddart J.F. (Ed). Monographs in Supramolecular Chemistry (1998), Royal Society of Chemistry, Cambridge
    • (1998) Monographs in Supramolecular Chemistry
    • Gutsche, C.D.1
  • 29
    • 33748977347 scopus 로고    scopus 로고
    • note
    • 3) δ ppm: 0.99 (s, 9H), 1.01 (s, 9H), 1.29 (s, 18H), 1.68 (d, J = 7.1 Hz, 3H), 3.36 (d, J = 12.9 Hz, 1H), 3.38 (d, J = 13.2 Hz, 1H), 3.39 (d, J = 13.2 Hz, 1H), 3.40 (d, J = 12.9 Hz, 1H), 3.77 (s, 3H), 4.12 (d, J = 13.2 Hz, 1H), 4.17 (d, J = 13.2 Hz, 1H), 4.22 (d, J = 12.9 Hz, 1H), 4.29 (d, J = 12.9 Hz, 1H), 4.48 (d, J = 14.7 Hz, 1H), 4.56 (d, J = 14.7 Hz, 1H), 5.33 (m, 1H), 6.85 (d, J = 2.4 Hz, 2H), 6.88 (d, J = 2.4 Hz, 1H), 6.90 (d, J = 2.4 Hz, 1H), 7.05 (d, J = 2.4 Hz, 1H), 7.07 (d, J = 2.4 Hz, 1H), 7.10 (d, J = 2.4 Hz, 2H), 7.34 (m, 3H), 7.49 (s, 1H), 7.54 (m, 2H), 7.57 (s, 1H), 9.05 (d, J = 8.2 Hz, 1H).
  • 31
    • 33748958188 scopus 로고    scopus 로고
    • note
    • 7: C 68.80, H 6.87, Cl 10.50, N 2.77. Found: C 69.01, H 6.75, Cl 10.42, N 2.86.
  • 32
    • 33748953788 scopus 로고    scopus 로고
    • note
    • 1H NMR spectra of the crude products.
  • 33
    • 33748960836 scopus 로고    scopus 로고
    • note
    • The yield was calculated for two steps on the basis of the amount of tert-butylcalix[4]arene monomethyl ether used in the synthesis.
  • 34
    • 33748965431 scopus 로고    scopus 로고
    • note
    • # = RT ln 4, where 4 is the observed diastereomeric ratio.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.