1: Dihydropapaverine With formic acid; triethylamine; Noyori's catalist in N,N-dimethyl-formamide
T=25°C; 7 h;
2: formaldehyd in methanol; water
T=25°C; 3 h;
3: With sodium tetrahydroborate in methanol; water
T=25°C; 16 h; Title compound not separated from byproducts;
参考文献
Mujahidin, Didin; Doye, Sven
European Journal of Organic Chemistry, 2005 , # 13 p. 2689 - 2693