Methylphosphine is the simplest organophosphine compound with the formula CH3PH2, often written MePH2. It is a malodorous gas that condenses to a colorless liquid. It can be produced by methylation of phosphanide salts: KPH2 + MeI → MePH2 + KI
Methylphosphine is the simplest organophosphine compound with the formula CH3PH2, often written MePH2. It is a malodorous gas that condenses to a colorless liquid. It can be produced by methylation of phosphanide salts: KPH2 + MeI → MePH2 + KI
==Reactions== The compound exhibits the properties characteristic of a primary phosphine, i.e., a compound of the type RPH2. It can be oxidized to methylphosphonous acid: MePH2 + O2 → MeP(H)O2H It protonates to give a phosphonium ion: MePH2 + H+ → MePH3+ With strong bases, it can be deprotonated to give methylphosphanide derivatives: MePH2 + KOH → K[MePH] + H2O
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).