oxalyl dichloride; N,N-dimethyl-formamide in dichloromethane
T=20°C; 2 h;
参考文献
Atkinson, Robert N.; Drizin, Irene; Gregg, Robert J.; Gross, Michael F.; Kort, Michael E.; Shi, Lei
Patent: US2004/220170 A1, 2004 ;
Location in patent: Page 18-19 ;
US 20040220170 A1