Verfahren zur Herstellung cyclischer Phosphorester

Verfahren zur Herstellung cyclischer Phosphorester

1,145,758. 1,3,2-Dioxaphosphorinane derivatives. HOOKER CHEMICAL CORP. 22 Nov., 1966 [26 Nov., 1965], No. 52300/66. Heading C2C. Cyclic phosphorus compounds, some of which are claimed per se, of the formulµ where X is a radical of the formula Y is a divalent radical of formula R is a hydrogen atom,...

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Hauptverfasser: L. DEVER,JAMES, HODAN,JAMES,J
Format: Patent
Sprache:ger
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Zusammenfassung:1,145,758. 1,3,2-Dioxaphosphorinane derivatives. HOOKER CHEMICAL CORP. 22 Nov., 1966 [26 Nov., 1965], No. 52300/66. Heading C2C. Cyclic phosphorus compounds, some of which are claimed per se, of the formulµ where X is a radical of the formula Y is a divalent radical of formula R is a hydrogen atom, an optionally halogenated alkyl group of 1 to 6 carbon atoms, or halogen, R1 is hydrogen or C 1-12 alkyl, R2 is hydrogen, C 1-12 alkyl, or halogen, R3 is C 1-12 alkyl or halogen, are prepared by reacting a phosphorohalidate of the formula where A is halogen with an appropriate hydroxy organic compound, adding to the reaction mixture a nitrogen-containing acid acceptor, and recovering the desired cyclic phosphite. The reaction is preferably carried out between 20‹ and 75‹ C. at atmospheric pressure, and the preferred acid acceptor is ammonia.