1: With oxalyl dichloride; N,N-dimethyl-formamide in ethylene glycol dimethyl ether
T=0 - 20°C;
2: With ammonia in ethylene glycol dimethyl ether; water
T=0°C; 2 h;
参考文献
JAPAN TOBACCO, INC.
Patent: US2009/36450 A1, 2009 ;
Location in patent: Page/Page column 25 ;
US 20090036450 A1