1: 96 percent / Na2SO4, NH2OH*HCl, conc. HCl / H2O / 0.17 h / Heating 2: 55 percent / conc. H2SO4 / 0.75 h / 70 °C 3: 1) 10M NaOH 2) 30percent aq. H2O2 / 1) 70 deg C, 60 min 2) 70 deg C, 60 min 4: 1) 48percent HBr, NaNO2 2) CuBr / 1) water, 1 h, 0 deg C 2) a) 30 min, r.t. b) 90 min, 70 deg C 5: SOCl2 / CH2Cl2 / 1 h / Heating 6: NH3-gas / CH2Cl2 / 1 h View Scheme
参考文献
McKittrick, Brian; Failli, Amedeo; Steffan, Robert J.; Soll, Richard M.; Hughes, Philip; et al.
Journal of Heterocyclic Chemistry, 1990 , vol. 27, # 7 p. 2151 - 2163
bromine; sodium bromide in methanol T=20°C; 0.5 h;
参考文献
Rewcastle, Gordon William; Spicer, Julie Ann; Barrett, Stephen Douglas; Kaufman, Michael David; Milbank, Jared Bruce John; Tecle, Haile
Patent: US2004/6245 A1, 2004 ;
Location in patent: Page 38 ;