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No abstract

Die Phosphonsäureesterchloride (I) reagieren mit Natrium‐p‐nitrophenolat (II) in Acetonitril zu den gemischten Phosphonsäureestern (III).

Phosphonite wie (I) oder (V) reagieren mit Tetrachlorkohlenstoff (II) (Mol‐Verhältnis 1:0) zu den Alkyl‐ (III) bzw. Aryl‐trichlormethyl‐phosphinaten (VI).

Diethyl‐trifluormethyl‐phosphonit (I) wird zum Chlorphosphonat (II) chloriert, das mit Alkoholen (III) direkt die Trifluormethyl‐phosphonate (IV) bildet.