1: cyclohexanone With methanesulfonic acid in tetrahydrofuran; toluene
T=40°C; 15 h;
2: 1,2-diamino-benzene in tetrahydrofuran; toluene
T=40°C; 18 h; Further stages.;
参考文献
John, Oliver R. S.; Killeen, Niall M.; Knowles, Deborah A.; Yau, Sze Chak; Bagley, Mark C.; Tomkinson, Nicholas C. O.
Organic Letters, 2007 , vol. 9, # 20 p. 4009 - 4012