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    UV-light stabilized compositions containing substituted 2-keto-1,4-diazacycloalkanes
    2.
    发明公开
    UV-light stabilized compositions containing substituted 2-keto-1,4-diazacycloalkanes 失效
    稳定化以防止含有取代的2-酮 - 1,4-二氮环烷UV光的组合物。

    公开(公告)号：EP0001284A1

    公开(公告)日：1979-04-04

    申请号：EP78100942.8

    申请日：1978-09-20

    申请人： The B.F. GOODRICH Company

    发明人： Lai, John Ta-yuan ,  Son, Pyong Nae

    IPC分类号： C08K5/34 ,  C07D241/02 ,  C07D241/44 ,  C07D243/08 ,  C07D243/10

    CPC分类号： C07D241/02 ,  C07D241/44 ,  C07D243/08 ,  C07D243/10 ,  C08K5/3442

    摘要： Novel polysubstituted 2-keto-1,4- diazacycloalkanes are powerful stabilizers for materials subject to ultraviolet (UV) light degradation, particularly for polyolefins. The cyclic 2-keto compounds of this invention have (a) a fixed two-carbon bridge between the N'and N 4 atoms of the diaza ring, the remaining portion of the ring having a variable length bridge of two or more carbon atoms, (b) an N-adjacent carbonyl in the fixed two-carbon bridge, and (c) at least one N 4 -adjacent carbon atom of the diaza ring is polysubstituted, that is, has two substituents which may be cyclizable.
    Compositions containing (a) the polysubstituted 2- keto-1,4- diazacycloalkanes of this invention, and (b) prior art polysubstituted 2-keto-1,4- diazacycloalkanes, exhibit excellent stability to UV light.

    Synthesis of 2-keto-1,4-diazacycloalkanes
    7.
    发明公开
    Synthesis of 2-keto-1,4-diazacycloalkanes 失效
    2-KETO-1,4-DIAZACYCLOALKANES的合成

    公开(公告)号：EP0001559A3

    公开(公告)日：1979-06-13

    申请号：EP78100940

    申请日：1978-09-20

    申请人： The B.F. GOODRICH Company

    发明人： Lai, John Ta-yuan

    IPC分类号： C07D241/08 ,  C07D243/08 ,  C07D241/36 ,  C08K05/34

    CPC分类号： C07D241/38 ,  C07D241/08 ,  C07D241/36 ,  C07D241/44 ,  C07D243/08 ,  C08K5/3442 ,  C08K5/3465

    摘要： Several novel syntheses have been discovered for preparation of 2-keto-1,4- diazacycloalkanes and their derivatives. Trans isomers of polysubstituted quinoxalin-2- ones may now be prepared.

    摘要翻译： 已经发现了2-酮-1,4-二氮杂环烷及其衍生物的合成。 A.其中顺式-3,3-二烷基-3,4-二氢喹喔啉-2-酮在合适的氢化催化剂存在下，在升高的温度和压力下氢化，得到顺式-3,3-二烷基 decahydroquinoxalin -2-酮。 B.其中反式-1,2-二氨基 - 环己烷与丙酮氰醇在水存在下反应得到反式-3,3-二甲基 - 十氢喹喔啉-2-酮的合成。 C.一种合成，其中环状或非环状1,2-二胺与环状或无环氰醇在NaOH水溶液的存在下和在“卤盐”催化剂的存在下与卤代甲酸一起反应，得到多取代的2 酮 - 1,4-二氮杂环烷烃。 D.在（i）鎓盐催化剂（ⅱ），有机溶剂和（ⅲ）碱水溶液的存在下，预选择的1,2-二胺与饱和的无环或环状单酮和卤代甲酸酯反应的合成 。 现在可以制备多取代的喹喔啉-2-酮的反式异构体。

    Process for preparing a 1,4-diazacycloheptan-2-one with a mixture of alkylated diamines
    8.
    发明公开
    Process for preparing a 1,4-diazacycloheptan-2-one with a mixture of alkylated diamines 失效
    一种用于从烷基化二胺的混合物制备的1,4- diazacycloheptan -2-酮的过程。

    公开(公告)号：EP0436901A2

    公开(公告)日：1991-07-17

    申请号：EP90124928.4

    申请日：1990-12-20

    申请人： THE B.F. GOODRICH COMPANY

    发明人： Lai, John Ta-yuan

    IPC分类号： C07D243/08

    CPC分类号： C07D243/08

    摘要： A process is disclosed for making a 1,4-diazacycloheptan-2-one from a mixture ('first' mixture) of alkylated 1,3-propanediamines one of which (referred to as the 'target' diamine) has substituents at specifed positions and contains (i) a terminal primary amine group adjacent to a disubstituted C atom (hence, referred to as having a 'hindered' N atom), and (ii) a terminal secondary amine group. The target diamine, other diamines and oligomeric polyamines in the first mixture, are made by alkylating an acyclic ('starting') 1,3-propanediprimaryamine having the hindered N atom. The first mixture of alkylated diamines, preferably containing a major molar proportion of the target diamine relative to any other alkylated diamines, is reductively alkylated, which unexpectedly results in the reductive alkylation of only the unwanted diamines, allowing the target diamine which is not reductively alkylated, to be removed from the mixture of reductively alkylated diamines. Upon cyclization of the target diamine, using the "ketoform reaction", it is essentially quantitatively converted to the 1,4-diazacycloheptan-2-one having an unsubstituted N⁴ atom flanked by disubstituted adjacent C atoms. By removing the unwanted components in the reaction mass an essentially pure product of 1,4-diazacycloheptan-2-ones is recovered. Thus, the difficulty of separating the target amine from other close-boiling compounds is avoided. As an alternative, the reductive alkylation step can be bypassed and the first mixture subjected to the ketoform reaction, followed by recovery of the desired product.

    摘要翻译： 一种方法是游离缺失盘用于从（“第一”混合物）的烷基化的1,3-丙二胺的哪一种的混合物制备1,4- diazacycloheptane -2-酮（由到被称为“目标”二胺）具有specifed位的取代基 和含有：（i）一个末端伯胺基团邻二取代的C原子（因此，称为具有一个“受阻” N原子），和（ii）一个末端仲胺基。 目标二胺，在第一混合物中的其它二胺和低聚多胺，由无环的烷基化制1,3- propanediprimaryamine的（“起始”）具有受阻N原子。 烷基化二胺的第一混合物，优选包含相对于任何其他烷基化二胺的目标二胺的主要摩尔比例，还原性烷基化，其中出人意料地导致仅不需要的二胺的还原性烷基化，允许目标二胺所有这是不还原烷基化 ，从还原性烷基化二胺的混合物中除去。 一旦目标二胺的环化，使用“酮基反应”时，它基本上定量地转化成具有通过unsubstituiertem二取代相邻的C原子侧翼Ñ<4>原子上的1,4- diazacycloheptane -2-酮。 通过在反应物料除去不需要的组分，以基本上1,4- diazacycloheptane -2-酮纯产物被回收。 因此，避免分离其他沸点接近的化合物的目标胺的难度。 至于替代方案中，还原性烷基化步骤可以被旁路和所述第一混合物经受酮形式反应，然后所要的产物的回收率。