Bicyclo(3.3.1)nonane derivatives and use in stabilizing organic materials
    2.
    发明授权
    Bicyclo(3.3.1)nonane derivatives and use in stabilizing organic materials 失效
    双酚(3.3.1)壬烷衍生物,用于稳定有机物质

    公开(公告)号:US4943391A

    公开(公告)日:1990-07-24

    申请号:US286295

    申请日:1988-12-10

    CPC分类号: C07D471/08

    摘要: Bicyclo[3.3.1]nonane derivatives of the general formula (I) ##STR1## where n is an integer from 1 to 70,R.sup.1 is hydrogen,R.sup.2 is hydrogen or hydroxyl, or the radical ##STR2## R.sup.3 and R.sup.4 are each independently of the other phenyl or 1- or 2-naphthyl, which phenyl or naphthyl may each be substituted by 1, 2 or 3 C.sub.1 -C.sub.12 -alkyls, C.sub.1 -C.sub.12 -alkoxys, chlorines, bromines, fluorines, trifluoromethyls or cyanos, in the case of 2 or 3 substituents these substituents being identical or different,A and B are each independently of the other a chemical bond, C.sub.1 -C.sub.22 -alkylene, cycloalkylene ##STR3## where m and o are each from 1 to 20 andR.sup.10 is hydrogen, C.sub.1 -C.sub.22 -alkyl, C.sub.5 -C.sub.12 -cycloalkyl, C.sub.7 -C.sub.18 -phenylalkyl, phenyl or C.sub.2 -C.sub.22 -cyanoalkyl,M is a radical of the formula ##STR4## which may be bonded to A not only via the nitrogen atom but also via the carbon atom, andR.sup.11, R.sup.12, R.sup.13 and R.sup.14 are each independently of the others C.sub.1 -C.sub.4 -alkyl, orR.sup.11 and R.sup.12 and/or R.sup.13 and R.sup.14 are each together tetramethylene or pentamethylene,R.sup.5 is hydrogen, cyano, hydroxyl, ##STR5## R.sup.15 is hydrogen, C.sub.1 -C.sub.22 -alkyl, C.sub.5 -C.sub.12 -cycloalkyl, C.sub.5 -C.sub.16 -phenylalkyl or a 5- or 6-membered heterocycle, or, when n is 1, --M--B--R.sup.5 is a radical of the formula ##STR6## where R.sup.16 is C.sub.1 -C.sub.4 -alkyl,R.sub.17 is hydrogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy andR.sub.18 is hydrogen or C.sub.1 -C.sub.12 -alkyl, have remarkably good stabilizing properties in respect of plastics, are colorless, are highly compatible with organic polymers and are stable to thermal decomposition.

    摘要翻译: 双环[3.3.1]通式(I)的壬烷衍生物其中n是1至70的整数,R 1是氢,R 2是氢或羟基,或者基团R 3和R 4 各自独立地为其它苯基或1-或2-萘基,该苯基或萘基各自可被1,2或3个C 1 -C 12烷基,C 1 -C 12烷氧基,氯,溴,氟,三氟甲基或氰基取代 在2或3个取代基的情况下,这些取代基相同或不同,A和B各自独立地为化学键,C 1 -C 22 - 亚烷基,亚环烷基,其中m和o分别为 1至20,R 10为氢,C 1 -C 22 - 烷基,C 5 -C 12 - 环烷基,C 7 -C 18 - 苯基烷基,苯基或C 2 -C 22 - 氰基烷基,M为式 A不仅通过氮原子而且通过碳原子,并且R 11,R 12,R 13和R 14各自独立地为C 1 -C 4 - 烷基,或者R 11和R 12和/或R 13和R 14分别为四甲基 烯或五亚甲基,R 5是氢,氰基,羟基,R 15是氢,C 1 -C 22 - 烷基,C 5 -C 12 - 环烷基,C 5 -C 16 - 苯基烷基或5-或6-元杂环 或者当n为1时,-MB-R 5为式(VI)的基团,其中R 16为C 1 -C 4 - 烷基,R 17为氢,C 1 -C 4 - 烷基或C 1 -C 4 - 烷氧基 和R18是氢或C1-C12烷基,在塑料方面具有非常好的稳定性,是无色的,与有机聚合物高度相容并且对热分解是稳定的。

    2,6-polyalkylpiperidine-substituted benzimidazole-2-carboxanilides and
their use for stabilizing organic material
    3.
    发明授权
    2,6-polyalkylpiperidine-substituted benzimidazole-2-carboxanilides and their use for stabilizing organic material 失效
    2,6-二烷基哌啶取代的苯并咪唑-2-羧酰苯胺及其用于稳定有机物质的用途

    公开(公告)号:US4940742A

    公开(公告)日:1990-07-10

    申请号:US392598

    申请日:1989-08-11

    CPC分类号: C07D401/12

    摘要: Benzimidazolecarboxanilides of the formula (I) ##STR1## where R.sup.1 and R.sup.2 independently of one another are each hydrogen, chlorine, bromine, alkyl, alkoxy, unsubstituted or alkyl-substituted or alkoxy-substituted phenyl or phenylalkyl, R.sup.3 and R.sup.4 independently of one another are each hydrogen, alkyl, alkyl which is interrupted by one or more oxygen atoms, alkoxy, alkoxy which is interrupted by one or more oxygen atoms, unsubstituted or alkyl-substituted or alkoxy-substituted phenyl, phenylalkoxy, alkanoylamino, benzoylamino, alkanoyloxy or benzoyloxy, n is 0, 1, 2, 3, 4 or 5, X is oxygen, ##STR2## R.sup.5 is hydrogen, alkyl, phenylalkyl, cyanomethyl, aminoethyl, hydroxyethyl, alkylcarbonyl or benzoyl, R.sup.6 is hydrogen, alkyl, phenylalkyl or phennyl and m is from 2 to 8, and the acid addition salts and hydrates of these compounds are stabilizers for organic material, in particular for plastics, such as polyethylene, polypropylene and polyamide.

    摘要翻译: 其中R 1和R 2彼此独立地为氢,氯,溴,烷基,烷氧基,未取代或烷基取代或烷氧基取代的苯基或苯基烷基,R3和R4独立地为(I)的苯并咪唑化合物酰胺 另一个为氢,烷基,被一个或多个氧原子间隔的烷基,烷氧基,被一个或多个氧原子间隔的烷氧基,未取代的或烷基取代的或烷氧基取代的苯基,苯基烷氧基,烷酰基氨基,苯甲酰氨基, 烷酰氧基或苯甲酰氧基,n为0,1,2,3,4或5,X为氧,R 5为氢,烷基,苯基烷基,氰基甲基,氨基乙基,羟基乙基,烷基羰基或苯甲酰基 R6为氢,烷基,苯基烷基或苯基,m为2-8,并且这些化合物的酸加成盐和水合物是有机材料的稳定剂,特别是用于塑料如聚乙烯,聚丙烯和聚酰胺的稳定剂。

    Heterocycles based on piperazinopiperazine
    4.
    发明授权
    Heterocycles based on piperazinopiperazine 失效
    基于哌嗪哌嗪的杂环

    公开(公告)号:US4904779A

    公开(公告)日:1990-02-27

    申请号:US299423

    申请日:1989-01-23

    CPC分类号: C07D487/22 C08K5/3477

    摘要: Heterocyclic compounds of the formula (I) ##STR1## where n is an integer from 1 to 70,R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently of the others hydrogen, C.sub.1 -C.sub.22 -alkyl or C.sub.5 - or C.sub.6 -cycloalkyl orR.sup.1 and R.sup.2 and also R.sup.3 and R.sup.4 are each pairwise trimethylene or tetramethylene,A is a direct bond, C.sub.1 - C.sub.22 -alkylene, cycloalkylene, ##STR2## where m and o are each from 1 to 20 andR.sup.6 is C.sub.1 -C.sub.22 -alkyl, C.sub.5 -C.sub.12 -cycloalkyl, C.sub.7 -C.sub.18 -phenylalkyl, unsubstituted or substituted phenyl or C.sub.2 -C.sub.22 -cyanoalkyl,M is a group of the formula ##STR3## which may be bonded to A not only via the nitrogen but also via the carbon, and whereR.sup.7, R.sup.8, and R.sup.10 are each independently of the others C.sub.1 -C.sub.4 -alkyl orR.sup.7 and R.sup.8 and/or R.sup.9 and R.sup.10 are each pairwise tetramethylene or pentamethylene andR.sup.11 is hydrogen or C.sub.1 -C.sub.4 -alkyl,B is a direct bond, C.sub.1 -C.sub.22 - alkylene, C.sub.7 -C.sub.16 -phenylalkylene or carbonyl-, carboxamido- or carboxylato-interrupted C.sub.3 -C.sub.22 -alkylene andR.sup.5 is hydrogen, cyano, hydroxyl, ##STR4## R.sup.12 is hydrogen, C.sub.1 -C.sub.22 -alkyl, C.sub.5 -C.sub.12 -cycloalkyl, C.sub.7 -C.sub.16 -phenylalkyl, unsubstituted or substituted phenyl or 5- or 6- membered heterocyclyl or, when n is 1, M--B--R.sup.5 is a group of the formula ##STR5## R.sup.13 is C.sub.1 -C.sub.4 -alkyl, R.sup.14 is hydrogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy andR.sup.15 is C.sub.1 -C.sub.12 -alkyl, have very good stabilizing properties, no self-color, good compatibility with polymers, a low vapor pressure and stability to thermal decomposition.

    摘要翻译: 式(I)的杂环化合物其中n为1至70的整数,R 1,R 2,R 3和R 4各自独立地为氢,C 1 -C 22 - 烷基或C 5 - 或C 6 - 环烷基或R 1和R 2,并且R 3和R 4各自为一对三亚甲基或四亚甲基,A为直接键,C 1 -C 22 - 亚烷基,亚环烷基,其中m和o各自为1〜20, R 6是C 1 -C 22 - 烷基,C 5 -C 12 - 环烷基,C 7 -C 18 - 苯基烷基,未取代或取代的苯基或C 2 -C 22 - 氰基烷基,M是可以与A键合的基团, 氮,但也经由碳,并且其中R 7,R 8和R 10各自独立地为C 1 -C 4 - 烷基或者R 7和R 8和/或R 9和R 10各自为成对四亚甲基或五亚甲基,R 11为氢或C 1 -C 4 - C 4 - 烷基,B是直接键,C 1 -C 22 - 亚烷基,C 7 -C 16 - 苯基亚烷基或羰基 - ,甲酰胺基或羧基 - 中断的C 3 -C 22亚烷基,R 5是氢,氰基,羟基, > + TR R12是氢,C1-C22-烷基,C5-C12-环烷基,C7-C16-苯基烷基,未取代或取代的苯基或5-或6-元杂环基,或当n是1时,MB-R5是 R 13是C + HD 1 -C 4烷基,R 14是氢,C 1 -C 4烷基或C 1 -C 4烷氧基,R 15是C 1 -C 12烷基,具有非常好的稳定性 ,无自色,与聚合物相容性好,蒸气压低,热分解稳定。

    Tetrahydrofurancarboxylic acid derivatives
    6.
    发明授权
    Tetrahydrofurancarboxylic acid derivatives 失效
    四氢呋喃羧酸衍生物

    公开(公告)号:US4703072A

    公开(公告)日:1987-10-27

    申请号:US874864

    申请日:1986-06-16

    摘要: Novel tetrahydrofurancarboxylic acid derivatives of the general formula I ##STR1## or polymers of these containing units of the formula II ##STR2## where the radicals R independently of one another are each C.sub.1 -C.sub.4 -alkyl, cyclohexyl or phenyl, m is from 0 to 3, n is 1 or 2, and R' is a radical of the formula ##STR3## suitable terminal groups in the polymers being chlorine or hydroxyl in the case of the CO group and hydrogen in the case of the --NR.sup.2 group, A is a bridge member, R.sup.1 is hydrogen, C.sub.2 -C.sub.6 -alkenyl, C.sub.1 -C.sub.12 -alkyl which may be interrupted by up to 3 oxygen atoms, unsubstituted or substituted phenylalkyl or C.sub.5 -C.sub.7 -cycloalkyl and R.sup.2 is radical of the formula ##STR4## where R.sup.3 is hydrogen or methyl, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 are each methyl or ethyl and R.sup.8 is hydrogen, C.sub.1 -C.sub.8 -alkyl, C.sub.3 -C.sub.8 -alkenyl, C.sub.2 -C.sub.4 -hydroxyalkyl or aralkyl, and salts of the compounds I and II, are very useful as light stabilizers for organic polymers.

    摘要翻译: 通式I的新型四氢呋喃羧酸衍生物(I)或这些含有式II的单元的聚合物(II)其中基团R彼此独立地为C 1 -C 4 - 烷基,环己基或苯基 ,m为0至3,n为1或2,R'为下式的基团:在CO基团的情况下,聚合物中的合适的端基为氯或羟基,在 -NR2基团,A为桥基,R1为氢,C2-C6-烯基,可被多达3个氧原子间隔的C1-C12-烷基,未取代或取代的苯基烷基或C5-C7-环烷基,R2为自由基 其中R 3是氢或甲基,R 4,R 5,R 6和R 7各自是甲基或乙基,R 8是氢,C 1 -C 8 - 烷基,C 3 -C 8 - 烯基,C 2 -C 4 - 羟烷基或芳烷基, 和化合物I和II的盐作为有机聚合物的光稳定剂是非常有用的。

    2,6-polyalkyl-4-piperidylamides, use thereof as stabilizers, in
particular for plastics, and organic material containing same
    7.
    发明授权
    2,6-polyalkyl-4-piperidylamides, use thereof as stabilizers, in particular for plastics, and organic material containing same 失效
    2,6-聚烷基-4-哌啶酰胺,其用作稳定剂,特别是塑料的稳定剂,以及含有它们的有机材料

    公开(公告)号:US5017702A

    公开(公告)日:1991-05-21

    申请号:US375874

    申请日:1989-07-06

    摘要: Useful stabilizers for organic material, in particular plastics and paints, and metal ion deactivators are amides of the formula ##STR1## where R.sup.1 and R.sup.2 are singly methyl or together tetramethylene or pentamethylene, R.sup.3 is hydrogen, alkyl, alkoxycarbonyl, alkanoyl, benzyl, hydroxyethyl, cyanomethyl or aminomethyl, n is 1, 2 or 3 and--when n is 1--R.sup.4 is hydrogen and R.sup.5 is --CO--R.sup.6 is H, alkyl, cycloalkyl, aralkyl, phenoxyalkyl, aryl, a 5- or 6-membered heterocycle, alkoxy, aryloxy, cycloalkyloxy, phenylalkoxy, carbamoyl or --SO.sub.2 --R.sup.8 where R.sup.8 is alkyl or phenyl or ##STR2## is a phthalimide group or--when n is 2--R.sup.4 is H and R.sup.5 is --CO--Z--CO-- where Z is a chemical bond, C.sub.1 -C.sub.8 -alkylene, oxaalkylene, phenylene, cyclohexylene, biphenylene, biphenylene oxide, dioxyphenylene, diaminophenylene, diaminocyclohexylene, 1-.OMEGA.-diiminoalkylene or a 2-valent heterocycle or ##STR3## is a pyromellimide group or--when n is 3--R.sup.4 is H and R.sup.5 is ##STR4## where R.sup.10 is a trivalent alkyl or 3-valent aryl, or acid addition salts and hydrates thereof.

    摘要翻译: 有机材料,特别是塑料和涂料以及金属离子失活剂的有用的稳定剂是式(I)的酰胺,其中R 1和R 2是单甲基或四亚甲基或五亚甲基,R 3是氢,烷基,烷氧基羰基,烷酰基, 苄基,羟乙基,氰甲基或氨基甲基,n为1,2或3,当n为1-R4为氢且R5为-CO-R6时,为H,烷基,环烷基,芳烷基,苯氧基烷基,芳基,5-或6 芳基氧基,环烷氧基,苯基烷氧基,氨基甲酰基或-SO2-R8,其中R8是烷基或苯基,或者是“邻苯二甲酰亚胺基”,或者当n是2-R 4是H且R 5是-CO-Z- CO-,其中Z是化学键,C1-C8-亚烷基,氧杂亚烷基,亚苯基,亚环己基,亚联苯基,亚联苯氧基,二氧亚苯基,二氨基亚苯基,二氨基环己烯,1-OMEGA-二亚氨基亚烷基或2价杂环或 基团或 - 当n是3-R 4是H且R 5是时,其中R 10是三价烷基或3价芳基或酸性 其盐及其水合物。

    Polycyclic compounds
    8.
    发明授权
    Polycyclic compounds 失效
    多环化合物

    公开(公告)号:US4958022A

    公开(公告)日:1990-09-18

    申请号:US314146

    申请日:1989-02-23

    摘要: Polycyclic compounds of the general formula (I) ##STR1## where R.sup.1 and R.sup.2 independently of one another are each hydrogen, alkyl, cycloalkyl, unsubstituted or substituted phenyl, pyridyl or phenylalkyl, or R.sup.1 and R.sup.2 together form a trimethylene or tetramethylene group, W, X, Y and Z independently of one another are each C--R.sup.6 or nitrogen, one or more of the radicals W, X, Y or Z being C--R.sup.6, R.sup.6 is hydrogen, --CO.sub.2 R.sup.7, --CONR.sup.7 R.sup.8, cyano or hydroxymethyl and R.sup.7 and R.sup.8 are each hydrogen, alkyl, unsubstituted or substituted phenyl, cycloalkyl, a 5-membered or 6-membered heterocyclic structure or phenylalkyl, R.sup.3 and R.sup.4 are each hydrogen or R.sup.3 and R.sup.4 together form a group of the formula ##STR2## A is a chemical bond, alkylene, ##STR3## or cycloalkylene, m and o are each from 1 to 20, R.sup.9 is alkyl, cycloalkyl, phenylalkyl or unsubstituted or substituted phenyl, M is a group of the formula ##STR4## and can be bonded to A both with the nitrogen atom and with the carbon atom, and R.sup.10, R.sup.11, R.sup.12 and R.sup.13 independently of one another are each alkyl, or R.sup.10 and R.sup.11 or R.sup.12 and R.sup.13 together form a tetramethylene or pentamethylene group, B is a chemical bond, alkylene or phenylalkylene or is alkylene which is interrupted by carbonyl, carboxamide or a carboxylic ester group, R.sup.5 is hydrogen, cyano, hydroxyl, ##STR5## R.sup.14 is hydrogen, alkyl, cycloalkyl, phenylalkyl, phenyl or a 5-membered or 6-membered heterocyclic structure, or M--B--R.sup.5 is a group of the formula ##STR6## in which case A must not be a chemical bond and R.sup.15 is alkyl, R.sup.16 is hydrogen, alkyl or alkoxy and R.sup.17 is hydrogen or alkyl, have extremely good stabilizing properties and no natural color and are very compatible with organic polymers. They also have a low vapor pressure and are stable to thermal decomposition.

    摘要翻译: 通式(I)的多环化合物其中R 1和R 2彼此独立地为氢,烷基,环烷基,未取代或取代的苯基,吡啶基或苯基烷基,或者R 1和R 2一起形成三亚甲基或四亚甲基 基团W,X,Y和Z各自独立地为C-R6或氮,基团W,X,Y或Z中的一个或多个为C-R6,R6为氢,-CO2R7,-CONR7R8,氰基 或羟甲基,R 7和R 8各自为氢,烷基,未取代或取代的苯基,环烷基,5元或6元杂环结构或苯基烷基,R 3和R 4各自为氢或R 3和R 4一起形成式 IMAGE> A是化学键,亚烷基,亚环烷基,亚环烷基,m和o各自为1-20,R9为烷基,环烷基,苯基烷基或未取代或取代的苯基,M为 并且可以与氮原子和碳原子键合至A,R10,R11,R12 和R 13彼此独立地为烷基,或R 10和R 11或R 12和R 13一起形成四亚甲基或五亚甲基,B为化学键,亚烷基或苯基亚烷基,或为被羰基,羧酰胺或羧酸酯基中断的亚烷基 R 5为氢,氰基,羟基,R 14为氢,烷基,环烷基,苯基烷基,苯基或5元或6元杂环结构,或MB-R5为式 SB,5 NHO + RE,其中A不能为化学键,R15为烷基,R16为氢,烷基或烷氧基,R17为氢或烷基,具有非常好的稳定性,无 天然色,与有机聚合物非常相容。 它们也具有低蒸气压,并且对热分解是稳定的。

    2,6-polyalkylpiperidine-substituted bislactams and their use for the
stabilization of organic material, in particular of plastics, and
materials stabilized therewith
    9.
    发明授权
    2,6-polyalkylpiperidine-substituted bislactams and their use for the stabilization of organic material, in particular of plastics, and materials stabilized therewith 失效
    2,6-二烷基哌啶取代的双内酰胺及其用于稳定有机材料,特别是塑料的材料和稳定化材料

    公开(公告)号:US5008312A

    公开(公告)日:1991-04-16

    申请号:US390216

    申请日:1989-08-07

    CPC分类号: C07D487/04 C08K5/3435

    摘要: Bislactams of the general formula I ##STR1## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently of one another are each C.sub.1 -C.sub.4 -alkyl, or R.sup.1 and R.sup.2 and/or R.sup.3 and R.sup.4 form a tetra- or pentamethylene radical, and R.sup.5 is hydrogen, carbonyl-C.sub.1 -C.sub.8 -alkyl, benzoyl, C.sub.1 -C.sub.8 -alkyl, C.sub.7 -C.sub.10 -phenylalkyl, the phenyl nucleus being unsubstituted or substituted by one or two C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkyoxy, fluorine, chlorine or bromine radicals, or is C.sub.1 -C.sub.3 -cyanoalkyl, C.sub.2 -C.sub.4 -hydroxyalkyl or C.sub.2 - or C.sub.3 -aminoalkyl, and the acid addition salts and hydrates of these compounds.The compounds (I) are stabilizers for organic materials.

    摘要翻译: 其中R 1,R 2,R 3和R 4彼此独立地为通式I(I)的双内酰胺各自为C 1 -C 4 - 烷基,或者R 1和R 2和/或R 3和R 4形成四 - 或五亚甲基, 并且R 5是氢,羰基-C 1 -C 8 - 烷基,苯甲酰基,C 1 -C 8 - 烷基,C 7 -C 10 - 苯基烷基,所述苯基核是未取代的或被一个或两个C 1 -C 4烷基,C 1 -C 4烷氧基, 氟,氯或溴基,或者是C 1 -C 3 - 氰基烷基,C 2 -C 4羟基烷基或C 2 - 或C 3 - 氨基烷基,以及这些化合物的酸加成盐和水合物。 化合物(I)是有机材料的稳定剂。

    Polyalkylpiperidine-substituted tetrahydropyridones and use thereof
    10.
    发明授权
    Polyalkylpiperidine-substituted tetrahydropyridones and use thereof 失效
    聚烷基哌啶取代的四氢吡啶酮及其用途

    公开(公告)号:US4981969A

    公开(公告)日:1991-01-01

    申请号:US443478

    申请日:1989-11-30

    摘要: Tetrahydropyridones which in one of their tautomeric forms conform to the general formula (I) ##STR1## where R.sup.1 and R.sup.2 are each independently of the other C.sub.1 -C.sub.12 -alkyl, which may be oxygen-interrupted, C.sub.5 -C.sub.6 -cycloalkyl or C.sub.7 -C.sub.12 -phenylalkyl where the phenyl is unsubstituted or monosubstituted, disubstituted or trisubstitued by C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, fluorine, chlorine or bromine, or ##STR2## is a from 5- to 12-membered cycloaliphatic ring which may be monosubstituted, disubstituted, trisubstituted or tetrasubstituted by C.sub.1 -C.sub.4 -alkyl, andR.sup.3 is hydrogen, substituted or unsubstituted alkyl or phenyl alkyl or alkanoyl, are effective stabilizers for plastics and coatings.

    摘要翻译: 以其互变异构形式之一的四氢吡啶酮符合通式(I)其中R 1和R 2各自独立地为可被氧中断的C 1 -C 12 - 烷基,C 5 -C 6 - 环烷基 或C 7 -C 12 - 苯基烷基,其中苯基是未取代的或被C 1 -C 4 - 烷基,C 1 -C 4 - 烷氧基,氟,氯或溴单取代,二取代或三取代,或者是< IMAGE>是5至12元环脂族 环可以被C1-C4-烷基单取代,三取代或四取代,R3是氢,取代或未取代的烷基或苯基烷基或烷酰基,是塑料和涂料的有效稳定剂。