in neat (no solvent) adding small excess Br2 to P4 while cooling with ice water in vacuum in anhydrous atmosphere;; formed PBr5 dissociates into PBr3 and Br2, which can be easily removed via fractionating;;
参考文献
Journal of the American Chemical Society, , vol. 34, p. 259 - 274
in neat (no solvent) byproducts: Et4NIBr2; argon atmosphere; org. compd. addn. to PBr5 (cooling to -20°C), reaction vessel connecting to vac. line; PBr3 collection (trap cooled with liq. nitrogen);
参考文献
Vengel'nikova, V. N.; Timokhin, B. V.; Kalabina, A. V.; Donskikh, V. I.
Journal of General Chemistry USSR (English Translation), 1982 , vol. 52, p. 1160 - 1163
Zhurnal Obshchei Khimii, 1982 , vol. 52, p. 1318 - 1322
