Cyclic phosphorous acid esters

Claim 2

Phosphorous acid esters corresponding to the formula: ##STR45## wherein R 2 is a benzyl, α-methylbenzyl, α,α-dimethyl benzyl, cyclopentyl or cyclohexyl, R 1 is an alkyl, a cycloalkyl, an aralkyl or an aryl, Y is a sulphur atom or HC--R 3 wherein R 3 is a hydrogen atom, an alkyl, cyclohexyl or cyclohexenyl, X is a hydrogen atom, or (a) a moiety of the formula ##STR46## wherein --L-- is a single bond or an alkyleneoxy moiety, R 4 is a single bond, an alkyleneoxy moiety, a condensed ring, an aryl, alkyl, alkaryl, alkyl mercapto, alkoxy, β-hydroxy alkoxy, OH--, amino-, SH-- or a moiety of the formula ##STR47## wherein Q is a single bond, an O or S atom, an O--(CH 2 ) 2 --O or C 1 -C 4 -alkylidene, and Z=1 or 2; or (b) a moiety of the formula ##STR48## wherein R 5 is hydroxy or hydrogen and Z is a single bond, an alkylidene, O--(CH 2 ) 2 --O, an O or S atom; or (c) a monofunctional or difunctional alkyl unsubstituted or substituted by phenyl, OH or phonoxy and which may optionally be attached through ether bridges or S-bridges, an alkyl, cyclohexyl or a tetralyl radical or; (d) a moiety of the formula ##STR49## wherein M is an alkylene or alkylene cycloalkyl; and R 6 is a single bond, a hydroxyalkyl, a ω-hydroxy-alkoxy, or an alkylene, an alkylene cycloalkyl, a hydrogen atom, or a hydroxy; or (e) a moiety of the formula ##STR50## (f) an oxyalkylation product of glycerol, trimethylol propane or pentaerythritol containing from 3 to 8 oxyethyl or oxypropyl moieties; and n is an integer of from 1 to 4, provided that when X is a hydrogen atom the n is equal to 1.

Claim 3

Phosphorous acid esters as claimed in claim 1, wherein R 2 , R 1 , Y, X and n has the following meaning: __________________________________________________________________________ Y = CH.sub.2, X = phenyl, R.sup.1 = CH.sub.3, R.sup.2 = cyclohexyl, n = 1 " " " benzyl " " " " α-methylbenzyl " Y = S " " cyclohexyl " " " " benzyl " " " " α-methylbenzyl " Y = CH.sub.2, X = o,m,p-cresyl, R.sup.1 = CH.sub.3, R.sup.2 = α-methylbenzyl n = 1 " " " benzyl " " " " cyclohexyl " Y = CH.sub.2, X = isononyl- " cyclohexyl " phenyl " " " benzyl " " " " α-methylbenzyl " naphthylX = β " cyclohexyl " " " " benzyl " " " " α-methylbenzyl " " X = H " cyclohexyl " " " " benzyl " " " " α-methylbenzyl " " X = benzylphenyl " cyclohexyl " " " " benzyl " " " " α-methylbenzyl " Y = CH.sub.2, X = phenylphenyl " cyclohexyl " " " " benzyl " " " α-methylbenzyl " ##STR51## " cyclohexyl " " " " benzyl " " " α-methylbenzyl " " ##STR52## " cyclohexyl 2 " " " benzyl " " " α-methylbenzyl " " X = stearyl " cyclohexyl 1 " " " benzyl " " " " α-methylbenzyl " Y = CH.sub.2, X = m-p- or hydroxy- " R.sup.2 = cyclohexyl " phenyl " " " benzyl " " " " α-methylbenzyl " " ##STR53## " cyclohexyl " " ##STR54## " " 2 " ##STR55## " " 1 " ##STR56## " " " Y = CH.sub.2, ##STR57## R.sup.1 = CH.sub.3, R.sup. 2 = cyclohexyl 2 " X = HO(CH.sub.2).sub.6 " " 1 " X = (CH.sub.2).sub.6 " " 2 " X = HOCH.sub.2 CH.sub.2 SCH.sub.2 CH.sub.2 " " 1 " X = CH.sub.2 CH.sub.2 SCH.sub.2 CH.sub.2 " " 2 " X = HOCH.sub.2 CH.sub.2 (OCH.sub.2 CH.sub.2).sub.6 " " 1 OCH.sub.2 CH.sub.2 " X = CH.sub.2 CH.sub.2 (OCH.sub.2 CH.sub.2).sub.6 " " 2 OCH.sub.2 CH.sub.2 " ##STR58## " " 1 " ##STR59## " " 1 " ##STR60## " " 1 " X = dodecyl " " 1 ##STR61## X = H " " 1 Y = CH.sub.2, ##STR62## " " 2 Y = S, X = H " " 1 " " " " " " " " α-methylbenzyl " Y = CHCH.sub.3 " " " " Y = S " H R.sup.2 = benzyl " __________________________________________________________________________