in toluene byproducts: tetraphenylphosphorus bromide; mixt. of Ph5P and Ph3BiBr2 in toluene heated at 100°C for 1 h in evacuated glass ampoule; cooling, removal of solvent, treatment with petroleum ether, evapn. of etheral extracts;
参考文献
Russian Journal of General Chemistry, , vol. 73, # 2 p. 202 - 203
