Process for the preparation of benzotriazoles
    2.
    发明授权
    Process for the preparation of benzotriazoles 失效
    苯并三唑的制备方法

    公开(公告)号:US5276161A

    公开(公告)日:1994-01-04

    申请号:US582292

    申请日:1990-09-13

    CPC分类号: C07D249/20 Y02E60/324

    摘要: 2-(2-Hydroxyphenyl)-2H-benzotriazoles of the formula ##STR1## in which R is hydrogen, C.sub.1 -C.sub.12 alkyl or C.sub.1 -C.sub.4 alkoxy, R.sub.1 is hydrogen, C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.6 cycloalkyl, phenyl or phenyl-C.sub.1 -C.sub.4 alkyl and R.sub.2 is C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.6 cycloalkyl, phenyl, phenyl-C.sub.1 -C.sub.4 alkyl or a group --C.sub.n H.sub.2n --COOR.sub.3, in which n is 0 to 4 and R.sub.3 is hydrogen or C.sub.1 -C.sub.12 alkyl, can be prepared particularly advantageously by catalytic hydrogenation of a suitable o-nitroazo compound in the presence of a Pt, Pd, Pt/Pd or Rh hydrogenation catalyst and an alkylenediamine or an acyclic or cyclic polyalkylene polyamine in a halogenated or nonhalogenated aromatic hydrocarbon as solvent.

    摘要翻译: 其中R是氢,C 1 -C 12烷基或C 1 -C 4烷氧基,R 1是氢,C 1 -C 12烷基,C 5 -C 6环烷基,苯基或苯基-C 1 -C 4烷氧基的2-(2-羟基苯基)-2H-苯并三唑 C4烷基和R2是C1-C12烷基,C5-C6环烷基,苯基,苯基-C1-C4烷基或基团-CnH2n-COOR3,其中n为0-4,R3为氢或C1-C12烷基,可以特别有利地通过催化 在Pt,Pd,Pt / Pd或Rh氢化催化剂和烷基二胺或非环状或环状聚亚烷基多胺作为溶剂的卤代或非卤代芳族烃存在下氢化合适的邻硝基偶氮化合物。

    Asymmetric aryl phosphites
    4.
    发明授权
    Asymmetric aryl phosphites 失效
    不对称芳基亚磷酸酯

    公开(公告)号:US5401845A

    公开(公告)日:1995-03-28

    申请号:US212756

    申请日:1994-03-11

    摘要: Compounds of the formula I ##STR1## in which x is 1, 2 or 3, and, if x=1, R.sup.1 is C.sub.1 -C.sub.30 alkyl, C.sub.1 -C.sub.18 alkyl substituted by halogen, --COOR.sup.2, --CN, --NR.sup.3 R.sup.4 or by --CONR.sup.3 R.sup.4, C.sub.2 -C.sub.18 alkyl which is interrupted by --NR.sup.5 --, --O-- or --S--, C.sub.3 -C.sub.18 alkenyl, C.sub.5 -C.sub.12 cycloalkyl, phenyl-C.sub.1 -C.sub.4 alkyl, phenyl which is unsubstituted or substituted by C.sub.1 -C.sub.12 alkyl, halogen, phenyl-C.sub.1 -C.sub.4 alkyl and/or C.sub.1 -C.sub.4 alkoxy, or R.sub.1 is naphthyl, a radical of the formula ##STR2## R.sub.2, R.sub.3, R.sub.4 and R.sub.5, independently of one another, are hydrogen, C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.12 cycloalkyl or phenyl-C.sub.1 -C.sub.4 alkyl, R.sup.6 is hydrogen, methyl, allyl or benzyl, R.sup.7 is hydrogen or --OR.sup.9, R.sup.8 is hydrogen or methyl, R.sup.9 is hydrogen or C.sub.1 -C.sub.30 alkyl, R.sup.10 and R.sup.11, independently of one another, are hydrogen or C.sub.1 -C.sub.8 alkyl, and n is 3-6, with the proviso that R.sup.1 is not a phenyl radical which is substituted in both ortho-positions to the carbon atom bonded to the oxygen atom,if x=2, R.sup.1 is C.sub.2 -C.sub.18 alkylene, C.sub.2 -C.sub.18 alkylene which is interrupted by --NR.sup.5, --O-- or --S--, or is a ##STR3## radical, and, if x=3, R.sup.1 is C.sub.4 -C.sub.12 alkanetriyl or a ##STR4## group in which m is 1-4, are suitable as stabilizers for organic materials which are sensitive to thermal, oxidative and/or photoinduced degradation.

    摘要翻译: 式I的化合物(I)其中x为1,2或3,如果x = 1,则R1为C1-C30烷基,被卤素取代的C1-C18烷基,-COOR2,-CN,-NR3R4或 被-CONR 3 R 4,被-NR 5 - ,-O-或-S-,C 3 -C 18烯基,C 5 -C 12环烷基,苯基-C 1 -C 4烷基,未被取代或被C 1 -C 12烷基取代的苯基,卤素, 苯基-C 1 -C 4烷基和/或C 1 -C 4烷氧基,或者R 1为萘基,R 2,R 3,R 4和R 5彼此独立地为氢,C 1 -C 18烷基, C 1 -C 12烷基或苯基-C 1 -C 4烷基,R 6是氢,甲基,烯丙基或苄基,R 7是氢或-OR 9,R 8是氢或甲基,R 9是氢或C 1 -C 30烷基,R 10和R 11彼此独立地是氢 或C 1 -C 8烷基,n为3-6,条件是R 1不是在与氧原子键合的碳原子的两个邻位被取代的苯基,如果x = 2,则R1为C2-C18亚烷基 被-NR 5,-O-或-S-中断的C 2 -C 18亚烷基,或者是a 如果x = 3,则R 1为C 4 -C 12烷基三乙基或其中m为1-4的基团,适用于对热,氧化和/或光诱导降解敏感的有机材料的稳定剂 。

    Asymmetric aryl phosphites
    5.
    发明授权
    Asymmetric aryl phosphites 失效
    不对称芳基亚磷酸酯

    公开(公告)号:US5322871A

    公开(公告)日:1994-06-21

    申请号:US49647

    申请日:1993-04-20

    摘要: Compounds of the formula I ##STR1## in which x is 1, 2 or 3, and, if x=1, R.sup.1 is C.sub.1 -C.sub.30 alkyl, C.sub.1 -C.sub.18 alkyl substituted by halogen, --COOR.sup.2, --CN, --NR.sup.3 R.sup.4 or by --CONR.sup.3 R.sup.4, C.sub.2 -C.sub.18 alkyl which is interrupted by --NR.sup.5 --, --O-- or --S--, C.sub.3 -C.sub.18 alkenyl, C.sub.5 -C.sub.12 cycloalkyl, phenyl-C.sub.1 -C.sub.4 alkyl, phenyl which is unsubstituted or substituted by C.sub.1 -C.sub.12 alkyl, halogen, phenyl-C.sub.1 -C.sub.4 alkyl and/or C.sub.1 -C.sub.4 alkoxy, or R.sub.1 is naphthyl, a radical of the formula ##STR2## R.sub.2, R.sub.3, R.sub.4 and R.sub.5, independently of one another, are hydrogen, C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.12 cycloalkyl or phenyl-C.sub.1 -C.sub.4 alkyl, R.sup.6 is hydrogen, methyl, allyl or benzyl, R.sup.7 is hydrogen or --OR.sup.9, R.sup.8 is hydrogen or methyl, R.sup.9 is hydrogen or C.sub.1 -C.sub.30 alkyl, R.sup.10 and R.sup.11, independently of one another, are hydrogen or C.sub.1 -C.sub.8 alkyl, and n is 3-6, with the proviso that R.sup.1 is not a phenyl radical which is substituted in both ortho-positions to the carbon atom bonded to the oxygen atom, if x=2, R.sup.1 is C.sub.2 -C.sub.18 alkylene, C.sub.2 -C.sub.18 alkylene which is interrupted by --NR.sup.5 --, --O-- or --S--, or is a ##STR3## radical, and, if x=3, R.sup.1 is C.sub.4 -C.sub.12 alkanetriyl or a ##STR4## group in which m is 1-4, are suitable as stabilisers for organic materials which are sensitive to thermal, oxidative and/or photoinduced degradation.

    摘要翻译: 式I的化合物(I)其中x为1,2或3,如果x = 1,则R1为C1-C30烷基,被卤素取代的C1-C18烷基,-COOR2,-CN,-NR3R4或 被-CONR 3 R 4,被-NR 5 - ,-O-或-S-,C 3 -C 18烯基,C 5 -C 12环烷基,苯基-C 1 -C 4烷基,未被取代或被C 1 -C 12烷基取代的苯基,卤素, 苯基-C 1 -C 4烷基和/或C 1 -C 4烷氧基,或者R 1为萘基,R 2,R 3,R 4和R 5彼此独立地为氢,C 1 -C 18烷基, C 1 -C 12烷基或苯基-C 1 -C 4烷基,R 6是氢,甲基,烯丙基或苄基,R 7是氢或-OR 9,R 8是氢或甲基,R 9是氢或C 1 -C 30烷基,R 10和R 11彼此独立地是氢 或C 1 -C 8烷基,n为3-6,条件是R 1不是在与氧原子键合的碳原子的两个邻位被取代的苯基,如果x = 2,则R1为C2-C18亚烷基 被-NR 5 - ,-O-或-S-中断的C 2 -C 18亚烷基,或者是a 如果x = 3,则R 1为C 4 -C 12烷基三乙基或其中m为1-4的基团,适用于对热,氧化和/或光诱导降解敏感的有机材料的稳定剂 。

    Process for the preparation of alkylhydroxyanilinothiotriazine
derivatives
    6.
    发明授权
    Process for the preparation of alkylhydroxyanilinothiotriazine derivatives 失效
    制备烷基羟基苯甲酸衍生物衍生物的方法

    公开(公告)号:US5086173A

    公开(公告)日:1992-02-04

    申请号:US699067

    申请日:1991-05-13

    IPC分类号: C07D251/46 C08K5/37

    CPC分类号: C07D251/46

    摘要: A process for the preparation of compounds of formula I ##STR1## wherein R.sub.1 and R.sub.2 are each independently of the other hydrogen, C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.6 cycloalkyl or phenyl, and R.sub.3 and R.sub.4 are each independently of the other C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.6 cycloalkyl, phenyl, phenyl which is substituted by C.sub.1 -C.sub.6 alkyl and/or hydroxy, or phenyl-C.sub.1 -C.sub.4 alkyl. The process comprises reacting a compound of formula III ##STR2## with a nitrite in aqueous or aqueous/organic medium to a compound of formula II ##STR3## extracting said compound of formula II from the reaction solution with a solvent, hydrogenating said compound, without isolation, in the cited solvent and in the presence of a palladium catalyst, to the corresponding p-aminophenol, and reacting said aminophenol, without isolation, with cyanuric chloride and a compound of formula HSR.sub.3 or HSR.sub.4 or a mixture of compounds of formulae HSR.sub.3 and HSR.sub.4. The products are obtained in high yield and purity.

    摘要翻译: 制备式I化合物的方法(I)其中R 1和R 2各自独立于其它的氢,C 1 -C 12烷基,C 5 -C 6环烷基或苯基,且R 3和R 4各自独立地为其它的C1- C 1 -C 6烷基,C 5 -C 6环烷基,苯基,被C 1 -C 6烷基和/或羟基取代的苯基或苯基-C 1 -C 4烷基。 该方法包括使式III化合物(III)与水性或水/有机介质中的亚硝酸盐反应到式II化合物(II),用溶剂从反应溶液中提取所述式II化合物 在所述溶剂中并在钯催化剂存在下,将所述化合物氢化为相应的对氨基苯酚,并将所述氨基苯酚与氰尿酰氯和式HSR3或HSR4的化合物或其混合物 的式HSR3和HSR4的化合物。 以高产率和纯度获得产品。

    Process for producing triarylphosphites
    8.
    发明授权
    Process for producing triarylphosphites 失效
    亚磷酸三芳基酯的制备方法

    公开(公告)号:US4312818A

    公开(公告)日:1982-01-26

    申请号:US103132

    申请日:1979-12-13

    CPC分类号: C07F9/145

    摘要: A process for producing triarylphosphites of the formula (RO).sub.3 P, in which R represents aryl or aryl substituted by one or more straight-chain or branched-chain alkyl, cycloalkyl, aryl or aralkyl groups, by reaction of phosphorus trihalides with hydroxy-substituted aromatic compounds of the formula ROH in the presence of 0.005 to 10 mol %, relative to the hydroxy-substituted aromatic compound, of a catalyst, optionally in the presence of a solvent, in which process the catalyst used is a compound from the group comprising amines or ammonium salts, amides of carboxylic acid and thiocarboxylic acids and also of oxygen acids of phosphorus, non-aromatic nitrogen-containing heterocycles and salts thereof, guanidines, amidines and azomethines and also salts thereof, sulfones, sulfoxides and sulfonium salts, primary, secondary and tertiary phosphines and salts thereof, phosphine oxides, phosphine sulfides or esters of phosphoric acids.

    摘要翻译: 一种制备式(RO)3P的三芳基亚磷酸酯的方法,其中R代表芳基或被一个或多个直链或支链烷基,环烷基,芳基或芳烷基取代的芳基,通过三卤化磷与羟基取代 任选在溶剂存在下,在相对于羟基取代的芳族化合物0.005至10摩尔%存在下,式ROH的芳族化合物,其中使用的催化剂是包含以下物质的化合物: 胺或铵盐,羧酸和硫代羧酸的酰胺,以及磷的氧酸,非芳族含氮杂环及其盐,胍,脒和偶氮甲碱及其盐,砜,亚砜和锍盐,伯, 二级和三级膦及其盐,氧化膦,磷化氢硫化物或磷酸酯。

    Continuous process for the preparation of alkyltin thiocarboxylic acid
esters
    10.
    发明授权
    Continuous process for the preparation of alkyltin thiocarboxylic acid esters 失效
    用于制备烷基锡硫代羧酸酯的连续方法

    公开(公告)号:US4554368A

    公开(公告)日:1985-11-19

    申请号:US445812

    申请日:1982-12-01

    IPC分类号: C07F7/22

    CPC分类号: C07F7/2268

    摘要: A process for the production of alkyltin thiocarboxylic acid esters from alkyltin halides and thiocarboxylic acid esters in the presence of an acid acceptor, which process comprises carrying out the reaction continuously in a reaction system comprising 1 to 5 agitator vessels with an average dwell time of 1 to 60 minutes, at a constant pH value in the range from 3 to 8, and in a temperature range from 40.degree. to 80.degree. C. and separating the product drawn off from the reaction system from the aqueous phase and subsequently drying it.The alkyltin thiocarboxylic acid esters obtained by the process of the invention are used for stabilizing homo- and copolymers of vinyl chloride.

    摘要翻译: 在酸受体存在下由烷基锡卤化物和硫代羧酸酯生产烷基锡硫代羧酸酯的方法,该方法包括在包含1至5个平均停留时间为1的搅拌器的反应体系中连续进行反应 至60分钟,在3至8范围内的恒定pH值和40至80℃的温度范围内,并将从反应体系中排出的产物与水相分离,随后将其干燥。 通过本发明方法获得的烷基锡硫代羧酸酯用于稳定氯乙烯的均聚物和共聚物。