methylphosphonous dichloride, methylphosphonothioate, N,N-diisopropylaminoethanol, diisopropylaminoethanethiol, trimethyl phosphite, thionyl chloride, PCl3, nitrogen atmosphere, vacuum distillation, NaOH, sealed ampoules, fume hood, 31P NMR, reflux, 60-80 degrees C, 1 atm, bleach, chromatography
