Structures of dimers and trimers of 1-trimethylacetylindole produced in presence of aluminum chloride

Tetrahedron Letters

Volumn 41, Issue 7, 2000, Pages 1059-1062

  Tajima, Nobumitsu ^a   Hayashi, Takuji ^a   Nakatsuka, Shin Ichi ^a  

^a GIFU UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

ALUMINUM CHLORIDE; DIMER; INDOLE DERIVATIVE;

ARTICLE; CHEMICAL STRUCTURE; DIMERIZATION; REACTION ANALYSIS; STRUCTURE ANALYSIS; SYNTHESIS;

EID: 0034639671     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4039(99)02234-0     Document Type: Article

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22. 3): δ ppm 1.34 (9H, s), 1.51 (9H, s), 4.24 (1H, d.d., J=8, 10 Hz), 4.72 (1H, br.t, J=10 Hz), 4.92 (1H, br.t, J=8 Hz), 6.38 (1H, br.d, J=4 Hz), 6.97 (1H, br.d, J=8 Hz), 7.00 (lH, br.t, J=8 Hz), 7.09 (1H, br.d, J=8 Hz), 7.27 (1H, br.t, J=8 Hz), 7.30 (1H, t, J=8 Hz), 7.70 (1H, d, J=4 Hz), 8.34 (1H, br.d, J=8 Hz), 8.47 (lH, br.d, J=8 Hz).
23. 3): δ ppm 1.34 (9H, s), 1.51 (9H, s), 4.16 (1H, m), 4.65 (2H, m), 6.56 (1H, d, J=4 Hz), 6.99 (1H, br.d, J=8 Hz), 7.02 (1H, br.t, J=8 Hz), 7.21 (1H, br.d, J=8 Hz), 7.26 (1H, br.t, J=8 Hz), 7.34 (1H, br.s), 7.74 (1H, d, J=4 Hz), 8.31 (1H, br.d, J=8 Hz), 8.47 (1H, d, J=8 Hz).
24. 3): δ ppm 1.35 (9H, s), 1.53 (9H, s), 4.16 (1H, d.d., J=11, 14 Hz), 4.68 (2H, m), 6.61 (lH, d, J=4 Hz), 6.97 (1H, br.d, J=8 Hz), 7.00 (1H, br.t, J=8 Hz), 7.04 (1H, br.d, J=8 Hz), 7.24 (1H, br.t, J=8 Hz), 7.49 (1H, d, J=8 Hz), 7.74 (1H, d, J=4 Hz), 8.30 (1H, br.d, J=8 Hz), 8.52 (1H, br.s).
25. 1H NMR spectrum was very complicated. We assume 5c might be a mixture of two diastereomers.