Synthesis of indolo[2,3-c]carbazole derivatives by thermal electrocyclic reactions

Synlett

Volumn , Issue 5, 1997, Pages 603-605

  Bergman, Jan ^a   Desarbre, Eric ^a  

^a NONE

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0001935309     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-1997-3215     Document Type: Article

References (17)

1. Link, J.T.; Raghavan, S.; Danishefsky, S.J. J. Am. Chem. Soc. 1995, 117, 552-553 and refs therein.
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3. Gillner, M.; Fernström, B.; Gustafsson, J.-Å.; Bergman, J.; Cambillau, C. Chemosphere 1986, 15, 1673-1680.
4. a) Rannug, U.; Rannug, A.; Sjöberg, U.; Li, H.; Westerholm, R.; Bergman, J. Chem. & Biol. 1995, 2, 841-845.
5. b) Barry, J.F.; Wallace, T.W.; Walshe, N.D.A. Tetrahedron 1995, 47, 12797-12806.
6. Weller, H.; Grellmann, K. H. J. Am. Chem. Soc. 1983, 105, 6268-6273.
7. Bergman, J.; Desarbre, E.; Janosik, T.; Lidgren, G.; Venemalm, L. unpublished results.
8. Bergman, J. Acta Chem. Scand. 1971, 25, 1277-1280.
9. Hibino, S.; Sugino, E. Adv. Nitrogen Heterocycles, 1995, 1, 205-227.
10. Bergman, J.; Carlsson, R. Tetrahedron Lett. 1978, 4055-4059.
11. Beccalli, E.M.; Marchesini, A.; Pilati, T. Tetrahedron 1993, 49, 4741-4758.
12. Fujisawa, T.; Sato, T. Org. Synth. 1987, 66, 121-126.
13. Bergman, J.; Norrby, P.O.; Sand, P. Tetrahedron 1990, 46, 6113-6124.
14. +).
15. 6) δ 52.7, 112.0, 112.2, 118.9, 119.3, 120.6, 123.2, 126.5, 131.7, 141.1, 167.0.
16. 6) δ 40.5, 110.1, 112.4, 119.8, 120.6, 122.8, 123.5, 127.2, 127.3, 128.5, 128.7, 142.5, 168.2.
17. 3,3′-biindolyl 22 was prepared by the procedure in ref 7 from N-methylisatine and indole.