1: With triethylamine in N,N-dimethyl-formamide; toluene Curtius-rearrangement; 3 h; Heating; 2: With water in N,N-dimethyl-formamide; toluene Heating; Further stages.;
参考文献
Mirk, Daniela; Waldvogel, Siegfried R.
Tetrahedron Letters, 2004 , vol. 45, # 42 p. 7911 - 7914