1: 3,4-dihydroxy-benzaldehyde With sodium hydride in N,N-dimethyl-formamide
T=0 - 23°C;
2: acetic anhydride in N,N-dimethyl-formamide
T=23°C; 4.5 h; Title compound not separated from byproducts;
参考文献
Ritter, Tobias; Zarotti, Pablo; Carreira, Erick M.
Organic Letters, 2004 , vol. 6, # 23 p. 4371 - 4374