(4-Hydroxy-3,5- di-tert-butylphenyl)chloromethanediphenylchlorophosphonium chloride transforms into (4-hydroxy-3,5- di-tert-butylphenyl)chloromethanediphenylphosphine oxide by the interaction with trimethyl orthoformate in mild conditions (80˚С, 0.5 hr). Phosphine oxide obtained and initial phosphonium salt reaсt with trimethyl orthoformate in severe conditions (120-130˚С, 2.5-3.0 hrs) to form 4-(diphenylphosphinylmethylene)-2,6- di-tert-butylcyclohexa-diene-2,5-one. The latter interacts with N-nucleophilic reagents on 1,6-addition scheme.
хлорид (4-гидрокси-3,5-ди-трет-бутилфенил)хлорметандифенилхлорфосфония, триметилортоформиат, 4-(дифенилфосфинилметилен)-2,6-ди-трет-бутилциклогексадиен-2,5-он, дехлорометоксилирование, дегидрохлорирующая способность, N-нуклеофильные реагенты, по схеме 1,6-присоединения, (4-hydroxy-3,5- di-tert-butylphenyl)chloromethanediphenylchlorophosphonium chloride, trimethyl orthoformate, 4-(di-phenylphosphinylmethylene)-2,6- di-tert-butylcyclohexadiene-2,5-one, dechloromethoxylation, dehydrochlorinating ability, N-nucleophilic reagents, on scheme of 1,6-addition
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