REACTIONS OF ETHOXYETHYNYLPHOSPHINES WITH PHENYL AZIDE AND NUCLEOPHILES - 1,5-ALKYLOTROPIC MIGRATION IN PHOSPHORUS(IV)-SUBSTITUTED KETENE ACETALSстатья
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Дата последнего поиска статьи во внешних источниках: 14 сентября 2013 г.
Аннотация:Ethoxyethynyl-di-tert-butylphosphine reacts with phenyl azide in the presence of amines, alcohols, phenol, or water by addition of the nucleophile to the triple bond of the unstable ethoxyethynyldi-tert-butyl-N-phenyliminophosphorane. It has been found that iminophosphorylated ketene acetals are usually unstable, undergoing 1,5-alkylotropic migration to give alkoxycarbonylmethyl-ene(aikylphenylamino)phosphoranes.