反应条件
1: 73 percent / ammonia, lithium / diethyl ether; ethanol / 3 h / -33 °C 2: 98 percent / imidazole / dimethylformamide / 1 h / Ambient temperature 3: methanesulfonyl chloride, N,N-dimethylaminopyridine, 2.) lithium bromide, lithium carbonate / 1.) CH2Cl2, RT, 1 h, 2.) DMF, 150 deg C, 2 h 4: 80 percent / p-toluenesulfonic acid / nitromethane / 18 h / Ambient temperature View Scheme
参考文献
Verstegen-Haaksma, Anja A.; Swarts, Henk J.; Jansen, Ben J. M.; Groot, Aede de
Tetrahedron, 1994 , vol. 50, # 33 p. 10095 - 10106
