公开(公告)号：US4554368A

公开(公告)日：1985-11-19

申请号：US445812

申请日：1982-12-01

申请人： Rudolf Maul ,  Hans Stephan ,  Walter Wolf

发明人： Rudolf Maul ,  Hans Stephan ,  Walter Wolf

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。

公开(公告)号：US5618963A

公开(公告)日：1997-04-08

申请号：US493775

申请日：1995-06-22

申请人： Thomas Engert ,  Hans Stephan ,  Walter Wolf

发明人： Thomas Engert ,  Hans Stephan ,  Walter Wolf

IPC分类号： C07F9/40

CPC分类号： C07F9/4056

摘要： A process is described for the preparation of hydroxybenzylphosphonates of the formula I ##STR1## which involves A) reacting a phenol of the formula II ##STR2## with an amine of the formula III ##STR3## formaldehyde or paraformaldehyde and a protonic acid H.sub.n A to give a salt of the formula IV ##STR4## B) distilling off the water of reaction which forms, and C) reacting the reaction mixture, or the salt IV isolated therefrom, with a trialkyl phosphite of the formula ##STR5## in which H.sub.n A is an organic or inorganic acid having n protons,n is 1, 2, 3 or 4,R.sub.1 and R.sub.2 independently of one another are C.sub.1 -C.sub.12 alkyl or C.sub.5 -C.sub.7 cycloalkyl,R.sub.3 and R.sub.4 independently of one another are C.sub.1 -C.sub.12 alkyl or form, together with the nitrogen atom attached to them, a piperidyl or morpholinyl radical, and R.sub.5, R.sub.6 and R.sub.7 independently of one another are C.sub.1 -C.sub.4 alkyl; and the compounds of the formula I are suitable, for example, as processing stabilizers for plastics.

摘要翻译： 描述了制备式I（I）的羟基苄基膦酸酯的方法，其涉及A）使式II的苯酚（II）与式III的胺（III）甲醛反应 或多聚甲醛和质子酸HnA，得到式IV的盐（Ⅳ）B）蒸馏形成的反应水，和C）将反应混合物或其分离的盐IV与三烷基 亚磷酸酯，其中HnA是具有n个质子的有机或无机酸，其中n为1,2,3或4，R 1和R 2彼此独立地为C 1 -C 12烷基或C 5 -C 7环烷基，R 3 和R 4彼此独立地是C 1 -C 12烷基或与其连接的氮原子一起形成哌啶基或吗啉基，并且R 5，R 6和R 7彼此独立地是C 1 -C 4烷基; 并且式I的化合物适用于例如塑料的加工稳定剂。

公开(公告)号：US4731448A

公开(公告)日：1988-03-15

申请号：US937600

申请日：1986-12-03

申请人： Heinz Issler ,  Siegfried Kintopf ,  Lutz Konig ,  Hans Stephan

发明人： Heinz Issler ,  Siegfried Kintopf ,  Lutz Konig ,  Hans Stephan

IPC分类号： C07D211/46

CPC分类号： C07D211/46

摘要： There is disclosed a process for the preparation of 1-(2-hydroxyethyl-2,2,6,6-tetramethyl-4-piperidinol from triacetoneamine, which comprises first reducing triacetoneamine in water and/or a polar organic solvent by catalytic hydrogenation to 2,2,6,6-tetramethyl-4-piperidinol, and adding a catalytic amount of acid to the resultant solution, without isolation of the intermediate, after optional concentration of the solution by distillation, and subsequently reacting the 2,2,6,6-tetramethyl-4-piperidinol with ethylene oxide.1-(2-Hydroxyethyl)-2,2,6,6-tetramethyl-4-piperidinol is a useful light and heat stabilizer for plastics and is, in addition, a valuable intermediate for the synthesis of further light stabilizer additives.

摘要翻译： 公开了从三丙酮胺制备1-（2-羟基乙基-2,2,6,6-四甲基-4-哌啶醇）的方法，该方法包括首先通过催化氢化在水和/或极性有机溶剂中还原三丙酮胺， 2,2,6,6-四甲基-4-哌啶醇，并且在通过蒸馏任选浓缩溶液后，向所得溶液中加入催化量的酸，而不分离中间体，随后使2,2,6,6-四甲基-4-哌啶醇反应 ，6-四甲基-4-哌啶醇与环氧乙烷，1-（2-羟乙基）-2,2,6,6-四甲基-4-哌啶醇是塑料的有用的光热稳定剂，另外还有一个有价值的 用于合成其它光稳定剂添加剂的中间体。