Process for preparing phosphorus compounds having...

Details Process for preparing phosphorus compounds having... Process for preparing phosphorus compounds having...

2005-10-18

2010-06-01

O'Sullivan, Peter G (Department: 1621)

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

Organic compounds

Phosphorus esters

C558S078000, C558S079000, C558S085000, C558S086000, C558S089000, C558S117000

Reexamination Certificate

active

07728162

ABSTRACT:
A novel process for preparing in a high purity and in a high yield phosphorus compounds having a phosphate-phosphonate bond within one molecule, along with only a small amount of a by-product, without being restricted by the kind of a phosphonate having an alcoholic hydroxyl group which is a raw material, without using a catalyst such as magnesium chloride, but only using a nitrogen-containing basic compound.

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E.N. Ofitserov et al. ; Zhurnal Obshchei Khimii, 1982, vol. 52, No. 12, pp. 2704-2715.
C. Roch-Neirey et al.; Tetrahedron Letters, 2001, vol. 42, No. 4, pp. 643-645.
I.V. Konovalova et al.; Zhurnal Obshchei Khimii, 1979, vol. 49, No. 6, pp. 1424-1425.
English Language Abstract of JP 02-273688.
English Language Abstract of JP 11-100391.
Japanese Office Action for corresponding Japanese Patent Application No. JP 2006-543011, dated Feb. 19, 2009, and English language translation thereof.

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