A process for the purification of crude neomenthyldiphenylphosphine, the process comprising crystallizing the crude neomenthyldiphenylphosphine using a solvent consisting essentially of methanol. The process provides for the unexpectedly efficient production of neomenthyldiphenylphosphine having purities of at least 97 mole percent, and more preferably at least about 99 mole percent. Another embodiment of the invention is neomenthyldiphenylphosphine having a purity of at least 97 mole percent produced by crystallizing crude neomenthyldiphenylphosphine having a purity of less than 97 mole percent using a solvent consisting essentially of methanol.
一种用
甲醇作为溶剂结晶粗新叶甲基
二苯基膦的纯化过程。该过程提供了出乎意料的高效率的新叶甲基
二苯基膦的生产,其纯度至少为97摩尔百分比,更好地为至少约99摩尔百分比。本发明的另一实施例是通过使用
甲醇作为溶剂结晶纯度小于97摩尔百分比的粗新叶甲基
二苯基膦而生产出至少97摩尔百分比纯度的新叶甲基
二苯基膦。