公开(公告)号：US06420462B1

公开(公告)日：2002-07-16

申请号：US09594273

申请日：2000-06-15

申请人： Alessandro Zedda ,  Gianluca Ferri ,  Massimiliano Sala

发明人： Alessandro Zedda ,  Gianluca Ferri ,  Massimiliano Sala

IPC分类号： C08K535

CPC分类号： C07D401/14 ,  C07D211/94 ,  C08K5/3435 ,  C08K5/34926 ,  C09K15/30

摘要： A new process is described for the preparation of a compound of the formula I wherein R1, R2, R3 and R4, independently of each other, are C1-C8alkyl or C1-C5hydroxyalkyl, or R1 and R2 together with the carbon atom they are attached to are C5-C12cycloalkyl or R3 and R4 together with the carbon atom they are attached to are C5-C12cycloalkyl; R5, R6, R7, R8 and R9, independently of each other, are H, C1-C8alkyl, C2-C8alkenyl, C5-C12aryl, C1-C4haloalkyl, an electron withdrawing group, or C1-C12aryl which is substituted by a residue selected from C1-C4alkyl, C1-C4alkoxy, halogen; and R7 and R8 together may also form a chemical bond; and R is an organic linking group containing 2-500 carbon atoms and forming, together with the carbon atoms it is directly connected to and the nitrogen atom, a substituted, 5-, 6 or 7-membered cyclic ring structure; characterized in that a compound of the formula II is oxidized. The compound of the formula I can be hydrogenated and/or halogenated by conventional methods. Compounds of the formula I and the corresponding hydrogenated and/or halogenated compounds are well suitable as stabilizers for organic material against degradation by light, oxygen and/or heat or yellowing; some are also active as flame retardants.

摘要翻译： 描述了制备式I化合物的新方法，其中R 1，R 2，R 3和R 4彼此独立地为C 1 -C 8烷基或C 1 -C 5羟烷基，或者R 1和R 2与它们所连接的碳原子一起是 C5-C12环烷基或R3和R4与它们所连接的碳原子一起为C 5 -C 12环烷基; R 5，R 6，R 7，R 8和R 9彼此独立地为H，C 1 -C 8烷基，C 2 -C 8烯基，C 5 -C 12芳基 ，C 1 -C 4卤代烷基，吸电子基团或被选自C 1 -C 4烷基，C 1 -C 4烷氧基，卤素的残基取代的C 1 -C 12芳基; 并且R7和R8一起也可以形成化学键; 并且R是含有2-500个碳原子的有机连接基团，并且与碳原子一起直接连接到氮原子上，形成取代的5，6或7元环环结构; 其特征在于式II的化合物被氧化。 式I的化合物可以通过常规方法氢化和/或卤化。式I和相应的氢化和/或卤代化合物的化合物非常适合用作有机材料的稳定剂，以防止光，氧和/或热的降解， 发黄 一些也作为阻燃剂起作用。

公开(公告)号：US6117995A

公开(公告)日：2000-09-12

申请号：US253161

申请日：1999-02-19

申请人： Alessandro Zedda ,  Gianluca Ferri ,  Massimiliano Sala

发明人： Alessandro Zedda ,  Gianluca Ferri ,  Massimiliano Sala

IPC分类号： C07D211/94 ,  C07D401/14 ,  C08G73/06 ,  C08K5/3435 ,  C08K5/3492 ,  C08L23/06 ,  C08L23/12 ,  C09D133/06 ,  C09D167/00 ,  C09K15/30 ,  C07D403/00 ,  C07D211/36 ,  C07D237/00 ,  C07D241/02 ,  C08L5/48

CPC分类号： C07D401/14 ,  C07D211/94 ,  C08K5/3435 ,  C08K5/34926 ,  C09K15/30

摘要： A new process is described for the preparation of a compound of the formula I ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4, independently of each other, are C.sub.1 -C.sub.8 alkyl or C.sub.1 -C.sub.5 hydroxyalkyl, or R.sub.1 and R.sub.2 together with the carbon atom they are attached to are C.sub.5 -C.sub.2 cycloalkyl, or R.sub.3 and R.sub.4 together with the carbon atom they are attached to are C.sub.5 -C.sub.12 cycloalkyl; R.sub.5, R.sub.6, R.sub.7, R.sub.8 and R.sub.9, independently of each other, are H, C.sub.1 -C.sub.8 alkyl, C.sub.2 -C.sub.8 alkenyl, C.sub.5 -C.sub.12 aryl, C.sub.1 -C.sub.4 haloalkyl, an electron withdrawing group, or C.sub.6 -C.sub.12 aryl which is substituted by a residue selected from C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen; and R.sub.7 and R.sub.8 together may also form a chemical bond; and R is an organic linking group containing 2-500 carbon atoms and forming, together with the carbon atoms it is directly connected to and the nitrogen atom, a substituted, 5-, 6 or 7-membered cyclic ring structure; characterized in that a compound of the formula II ##STR2## is oxidized. The compound of the formula I can be hydrogenated and/or halogenated by conventional methods.Compounds of the formula I and the corresponding hydrogenated and/or halogenated compounds are well suitable as stabilizers for organic material against degradation by light, oxygen and/or heat or yellowing; some are also active as flame retardants.

摘要翻译： 描述了制备式I化合物的新方法，其中R 1，R 2，R 3和R 4彼此独立地为C 1 -C 8烷基或C 1 -C 5羟烷基，或者R 1和R 2与它们所连接的碳原子一起 为C5-C2环烷基，或R3和R4与它们连接的碳原子一起为C5-C12环烷基; R 5，R 6，R 7，R 8和R 9彼此独立地为H，C 1 -C 8烷基，C 2 -C 8烯基，C 5 -C 12芳基，C 1 -C 4卤代烷基，吸电子基团或被选定的残基取代的C 6 -C 12芳基 C 1 -C 4烷基，C 1 -C 4烷氧基，卤素; 并且R7和R8一起也可以形成化学键; 并且R是含有2-500个碳原子的有机连接基团，并且与碳原子一起直接连接到氮原子上，形成取代的5，6或7元环环结构; 其特征在于式II化合物被氧化。 式I的化合物可以通过常规方法氢化和/或卤化。 式I化合物和相应的氢化和/或卤代化合物非常适合作为有机材料的稳定剂，防止光，氧和/或热或黄化降解; 一些也作为阻燃剂起作用。