Cyclic phosphonites

Details Cyclic phosphonites Cyclic phosphonites

1989-09-12

1990-08-28

Sutto, Anton H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Phosphorus esters

C07F 9547

Patent

active

049527401

ABSTRACT:
New cyclic phosphonites, in which one of the oxygen atoms of the ring can be replaced by an atom of sulphur or nitrogen; the molecule has an asymmetry due to at least two carbon atoms, one or more nitrogen and/or oxygen atoms or several of these elements together.
Preparation of these phosphonites by the reaction of a dihalogeno-phosphine with a compound having two active H atoms, in the presence of a hydracid acceptor.
Application of the new phosphonites to the production of the corresponding phosphinates and phosphine oxides.

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