thionyl chloride in chloroform 3 h; Heating / reflux;
参考文献
VERNALIS (R and D) Ltd.; CANCER RESEARCH TECHNOLOGY LTD; THE INSTITUTE OF CANCER RESEARCH
Patent: WO2007/34185 A1, 2007 ;
Location in patent: Page/Page column 60-61 ;
tetraethylammonium p-toluenesulfonate in N,N-dimethyl-formamide T=-40 - 25°C; 2 h; electroreduction: platinum anode and cathode, constant current (15 mA cm-1);