Br2 in tetrachloromethane refluxing of slight excess of tin metal with Br2 in CCl4 until the soln. was no longer coloured brown, filtering hot, solvent removing, residuedistilling in vacuo; purified by recrystallization from anhydrous CCl4;
参考文献
Canadian Journal of Chemistry, , vol. 62, p. 707 - 711