π-Conjugated oligomers and polymers with a self-assembled ladder-like structure

Journal of the American Chemical Society

Volumn 118, Issue 36, 1996, Pages 8717-8718

  Delnoye, Didier A P ^a   Sijbesma, Rint P ^a   Vekemans, Jef A J M ^a   Meijer, E W ^a  

^a EINDHOVEN UNIVERSITY OF TECHNOLOGY   (Netherlands)

Author keywords

[No Author keywords available]

Indexed keywords

POLYMER;

ARTICLE; DRUG STRUCTURE; DRUG SYNTHESIS;

EID: 0029836655     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja9614171     Document Type: Article

References (43)

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37. For discussions concerning the accelerating effect of copper halides on the Stille coupling, see: (a) Liebeskind, L. S.; Fengl, R. W. J. Org. Chem. 1990, 55, 5359. (b) Sáa, J. M.; Martorell, G. J. Org. Chem. 1993, 58, 1963. (c) Farina, V.; Kapidia, S.; Krishnan, B.; Wang, C.; Liebeskind, L. S. J. Org. Chem. 1994, 59, 5905. (d) Echavarren, A. M.; Tamayo, N.; Cárdenas, D. J. J. Org. Chem. 1994, 59, 6075.
38. For discussions concerning the accelerating effect of copper halides on the Stille coupling, see: (a) Liebeskind, L. S.; Fengl, R. W. J. Org. Chem. 1990, 55, 5359. (b) Sáa, J. M.; Martorell, G. J. Org. Chem. 1993, 58, 1963. (c) Farina, V.; Kapidia, S.; Krishnan, B.; Wang, C.; Liebeskind, L. S. J. Org. Chem. 1994, 59, 5905. (d) Echavarren, A. M.; Tamayo, N.; Cárdenas, D. J. J. Org. Chem. 1994, 59, 6075.
39. For discussions concerning the accelerating effect of copper halides on the Stille coupling, see: (a) Liebeskind, L. S.; Fengl, R. W. J. Org. Chem. 1990, 55, 5359. (b) Sáa, J. M.; Martorell, G. J. Org. Chem. 1993, 58, 1963. (c) Farina, V.; Kapidia, S.; Krishnan, B.; Wang, C.; Liebeskind, L. S. J. Org. Chem. 1994, 59, 5905. (d) Echavarren, A. M.; Tamayo, N.; Cárdenas, D. J. J. Org. Chem. 1994, 59, 6075.
40. max = 508 nm.
41. 13C-NMR (CDCl3, 100 MHz) δ 153.4; 153.2; 151.4; 150.0; 141.7; 140.9; 138.8; 133.5; 131.1; 128.8; 124.2; 122.6; 122.2; 121.1; 120.8; 80.4; 30.9; 28.4.
42. 3; PDI = 1.2.
43. In oligomer 5b this band moves from 362 nm to a position which is obscured by a strong absorption at 300 nm.