266678-13-1Relevant articles and documents
Regioselective Formation of Substituted Indoles: Formal Synthesis of Lysergic Acid
Beaudry, Christopher M.,Points, Gary L.,Stout, Kenneth T.
supporting information, p. 16655 - 16658 (2020/12/01)
A Diels–Alder reaction-based strategy for the synthesis of indoles and related heterocycles is reported. An intramolecular cycloaddition of alkyne-tethered 3-aminopyrones gives 4-substituted indolines in good yield and with complete regioselectivity. Additional substitution is readily tolerated in the transformation, allowing synthesis of complex and non-canonical substitution patterns. Oxidative conditions give the corresponding indoles. The strategy also allows the synthesis of carbazoles. The method was showcased in a formal synthesis of lysergic acid.
Synthesis of the 4-arylindole portion of the antitumor agent diazonamide and related studies
Chan, Fiona,Magnus, Philip,McIver, Edward G.
, p. 835 - 838 (2007/10/03)
The synthesis of 6 comprising the CDG rings of the diazonamides was achieved in an overall yield of 75% from commercially available 3. (C) 2000 Elsevier Science Ltd.