ethanol; boron trifluoride diethyl etherate in nitromethane
T=20°C; 12 h; 3-oxobutylation also of substituted thiophenes, temperature also 100 deg C, reaction time varied; Product distribution;
参考文献
Dujardin, Gilles; Poirier, Jean-Marie
Bulletin de la Societe Chimique de France, 1994 , vol. 131, p. 900 - 909
silica gel
T=20°C; 1 h; Yield given. Yields of byproduct given;
参考文献
Minachev, Kh. M.; Lozanova, A. V.; Isakov, Ya. I.; Veselovskii, V. V.; Boevskii, M. Yu.; et al.
Doklady Chemistry, 1988 , vol. 302, p. 306 - 308
Dokl. Akad. Nauk SSSR Ser. Khim., 1988 , vol. 302, # 6 p. 1388 - 1391