
Helvetica Chimica Acta p. 574 - 587 (2007)
Update date:2022-07-30
Topics:
Kurokawa, Masayuki
Watanabe, Toshiko
Ishikawa, Tsutomu
Vilsmeier-Haack-type cyclization of 1H-indole-4-propanoic acid derivatives was examined as model construction for the A-B-C ring system of lysergic acid (1). Smooth cyclization from the 4 position of 1H-indole to the 3 position was achieved by Vilsmeier-H
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