What is another word for secondary phosphine?
Pronunciation: [sˈɛkəndəɹi fˈɒsfiːn] (IPA) 
Secondary phosphine is a specific type of organophosphorus compound that contains a P-H bond and a non-hydrogen substituent. There are several synonyms for this compound, including secondary phosphines, dialkylphosphines, and diphenylphosphines. These terms describe compounds that contain two alkyl or aryl groups bonded to a central phosphorus atom in addition to the P-H bond. Other related terms include tertiary phosphines which have three alkyl or aryl groups, and primary phosphines, which have only one alkyl or aryl group bonded to the central phosphorus atom. The versatility of these phosphorus-containing compounds makes them indispensable reagents in a wide range of chemical reactions, including catalysis and organic synthesis.
