Five-coordinate phosphorous compound, process for producing the

Details Five-coordinate phosphorous compound, process for producing the Five-coordinate phosphorous compound, process for producing the

1997-08-07

1999-05-11

Richter, Johann

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

25240023, 549 10, 549 12, 558 74, 558 83, 558 97, C09K15/32

Patent

active

059025166

ABSTRACT:
A five-coordinate phosphorous compound which is useful as an stabilizer for organic materials and represented by the formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.4 and R.sup.5 independently represent hydrogen atom, an alkyl group, a cycloalkyl group, an alkylcycloalkyl group, an aralkyl group or a phenyl group; R.sup.3 represents hydrogen atom or an alkyl group; X represents a direct bond, a sulfur atom or a group represented by --CHR.sup.6 -- wherein R.sup.6 represents hydrogen atom, an alkyl group or a cycloalkyl group, and a process for producing the compound (I) are provided.

REFERENCES:
patent: 5576365 (1996-11-01), Fukuda et al.

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