Phosphite, a process for producing the same and a use thereof

Details Phosphite, a process for producing the same and a use thereof Phosphite, a process for producing the same and a use thereof

1997-10-30

2000-06-13

Geist, Gary

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

Organic compounds

Phosphorus esters

558 73, 558 83, 558 92, 558 95, C07F 906

Patent

active

060751592

ABSTRACT:
A phosphite represented by the formula (I): ##STR1## wherein n repesents 1 or 2; A represents alkylene; B represents a direct bond or alkylene; one of Y and Z represents a hydroxyl group, alkoxy or aralkyloxy, and the other one represents a hydrogen atom or alkyl; X represents a group of formula (II): ##STR2## wherein R.sup.1 and R.sup.2 represent a hydrogen atom, an alkyl group, a cycloalkyl group, an alkylcycloalkyl group, an aralkyl group or a phenyl group; R.sup.3 represents a hydrogen atom or an alkyl group; and R.sup.4 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkylcycloalkyl group, an aralkyl group or a phenyl group, or R.sup.4 may be combined to form a direct bond, a sulfur bond (--S--), or an unsubstituted or substituted methylene group; R.sup.5 and R.sup.6 independently represent a hydrogen atom, an alkyl group, a cycloalkyl group, an alkylcycloalkyl group, an aralkyl group or a phenyl group;
R.sup.8 represents a hydrogen atom or an alkyl group; and
R.sup.7 represents a hydrogen atom or an alkyl group or --CH(R8)--A--O--X; and the organic phosphorus compound is useful as a stabilizer for an organic material.

REFERENCES:
CA:100:103496 abs of Huaxue Shiji by Lu 5(6) pp. 359-60, 1983.
CA:78:30865 abs of JP47031927, Aug. 1972.
CA:118:81025 abs of Phosphorus sulfur silicaon and related elements by Page 70(3-4) pp. 205-10, 1992.

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