Piperidine compounds

Details Piperidine compounds Piperidine compounds

1980-04-10

1982-02-16

Bond, Robert T.

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

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

544360, 544121, 2602393R, 2602444, 260 458N, C07D40114

Patent

active

043160255

ABSTRACT:
Compounds of the formula ##STR1## in which R.sub.1 is hydrogen, --O, --CN, a linear or branched alkyl radical containing from 1 to 20 carbon atoms, an alkenyl or alkynyl radical containing from 2 to 20 carbon atoms, benzyl which is unsubstituted or substituted by 1 to 3 C.sub.1 -C.sub.4 -alkyl radicals or hydroxybenzyl which is unsubstituted or substituted by 1 to 3 C.sub.1 -C.sub.4 -alkyl radicals; or R.sub.1 is a --COR.sub.14, --COOR.sub.14, --CH.sub.2 COOR.sub.14 or --CONR.sub.14 R.sub.15 radical, in which R.sub.14 and R.sub.15, which may be identical or different, are linear or branched C.sub.1 -C.sub.20 -alkyl, C.sub.2 -C.sub.20 -alkenyl, C.sub.5 -C.sub.12 -cycloalkyl, phenyl which is unsubstituted or substituted by 1 to 3 C.sub.1 -C.sub.8 -alkyl radicals, hydroxyphenyl which is unsubstituted or substituted by 1 to 3 C.sub.1 -C.sub.4 -alkyl radicals, C.sub.7 -C.sub.12 -aralkyl, 2,2,6,6-tetramethyl-4-piperidyl, 1,2,2,6,6-pentamethyl-4-piperidyl or, when they are bonded to N, can be hydrogen or, conjointly with the N to which they are bonded, can form a nitrogen-containing heterocyclic ring with 5-7 members; or R.sub.1 is a ##STR2## radical, in which R.sub.16 is hydrogen or methyl and R.sub.17 is --OH, --OR.sub.14, --OCOR.sub.14 or --OCONR.sub.14 R.sub.15, in which R.sub.14 and R.sub.15 are as defined above; or R.sub.1 is a ##STR3## radical; R.sub.2, R.sub.3, R.sub.6 and R.sub.7, which may be identical or different, are an alkyl radical containing 1 to 6 carbon atoms; R.sub.4 and R.sub.5, which may be identical or different, are hydrogen or an alkyl radical containing from 1 to 6 carbon atoms; R.sub.8, R.sub.9, R.sub.10, R.sub.11, R.sub.12 and R.sub.13, which may be identical or different, are hydrogen or an alkyl radical containing 1 to 6 carbon atoms; m and n are zero or 1; X and Z, which may be identical or different, are ##STR4## in which R.sub.18 is hydrogen or C.sub.1 -C.sub.20 -alkyl and R.sub.19 is hydrogen, C.sub.1 -C.sub.20 -alkyl or a --(CH.sub.2).sub.r --COOR.sub.14 radical, or a --CONR.sub.14 R.sub.15 radical in which R.sub.14 and R.sub.15 are as defined above and r is an integer from 0 to 10; Y is ##STR5## in which R.sub.20 is hydrogen or C.sub.1 -C.sub.20 -alkyl and R.sub.21 is hydrogen, C.sub.1 -C.sub.20 -alkyl, benzyl which is unsubstituted or substituted by 1 to 3 C.sub.1 -C.sub.4 -alkyl radicals, hydroxybenzyl which is unsubstituted or substituted by 1 to 3 C.sub.1 -C.sub.4 -alkyl radicals, 2,2,6,6-tetramethyl-4-piperidyl, 1,2,2,6,6-pentamethyl-4-piperidyl or a --OH, --NO.sub.2, --NR.sub.22 R.sub.23 or --NH--COR.sub.24 radical, in which R.sub.22 and R.sub.23, which may be identical or different, are hydrogen, C.sub.1 -C.sub.20 -alkyl, benzyl or hydroxybenzyl substituted by 1 to 3 C.sub.1 -C.sub.4 -alkyl radicals and R.sub.24 is C.sub.1 -C.sub.20 -alkyl, phenyl which is unsubstituted or substituted by 1 to 3 C.sub.1 -C.sub.8 -alkyl radicals or hydroxyphenyl which is substituted by 1 to 3 C.sub.1 -C.sub.4 -alkyl radicals, are useful as stabilizers for synthetic polymers.

REFERENCES:
patent: 3306903 (1967-02-01), Jain et al.
patent: 3734883 (1973-05-01), Holt
patent: 3919234 (1975-11-01), Ramey et al.
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patent: 4190571 (1980-02-01), Lai et al.
patent: 4207228 (1980-06-01), Lai et al.
patent: 4238388 (1980-12-01), Cantatore et al.
Klingsberg, Pyridine and Its Derivatives, Part Three, pp. 8-10 & 16-17, Interscience Publishers (1962).
Karrer, Organic Chemistry, Second English Edition, p. 901, Elsevier Publishing Co., Inc., NY (1946).

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