PINDUR, Ulf; ROGGE, Martina. New [4 + 2] Cycloadditions of in situ Generated Indolyl Enol Ethers and Their Anions with Dimethyl Acetylenedicarboxylate: A One-Pot Access to 4-Alkoxy-Substituted Carbazoles. CHIMIA, [S. l.], v. 46, n. 11, p. 441, 1992. DOI: 10.2533/chimia.1992.441. Disponível em: https://www.chimia.ch/chimia/article/view/1992_441.. Acesso em: 23 nov. 2024.