Synthesis of (4-hydroxy-3,5-di-tert-butylphenyl)-chloromethanediphenylphosphine oxide and its reactions with aprotic nucleophilic reagents
摘要:
Reaction of (4-hydroxy-3,5-di-tert-butylphenyl)chloromethanediphenylchlorophosphonium chloride with trimethyl orthoformate affords (4-hydroxy-3,5-di-tert-butylphenyl)chloromethanediphenylphosphine oxide. The latter undergoes dehydrochlorination under the action of trimethyl orthoformate and O-methyl diethylphosphinate, and with diphenylchloro- and triphenyl phosphines it gives the corresponding phosphonium salts.