3,4-dihydro-2H-pyrans useful as pesticides
    43.
    发明授权
    3,4-dihydro-2H-pyrans useful as pesticides 失效
    3,4-二氢-2H-吡喃可用作农药

    公开(公告)号:US4876275A

    公开(公告)日:1989-10-24

    申请号:US176700

    申请日:1988-04-01

    摘要: 3,4-dihydro-2H-pyrans of the formula I ##STR1## where R.sup.1 is C.sub.4 -C.sub.20 -alkyl, C.sub.4 -C.sub.20 -alkoxyalkyl, aryl or C.sub.7 -C.sub.20 -arylalkyl, or is aryl or C.sub.7 -C.sub.20 -arylalkyl which bears from one to three substituents selected from the group consisting of halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -haloalkyl, C.sub.1 -C.sub.8 -alkoxy or C.sub.1 -C.sub.8 -haloalkoxy, R.sup.2 is hydrogen or C.sub.1 -C.sub.4 -alkyl, R.sup.3 is aryl, or aryl bearing from one to three substituents selected from the group consisting of halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -haloalkyl, C.sub.1 -C.sub.8 -alkoxy or C.sub.1 -C.sub.8 -haloalkoxy, or the radical ##STR2## where R.sup.4, R.sup.5 and R.sup.6 are hydrogen or C.sub.1 -C.sub.4 -alkyl, R.sup.7 is phenyl or benzoyl, or phenyl or benzoyl bearing from one to three substituents selected from the group consisting of halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -haloalkyl, C.sub.1 -C.sub.8 -alkoxy and C.sub.1 -C.sub.8 -haloalkoxy, or a five- or six-membered heterocycle containing one or two oxygen atoms and which is either unsubstituted or substituted by one to three C.sub.1 -C.sub.8 -alkyl groups or one C.sub.3 -C.sub.6 -spirocycloalkyl, and l, m and n are 0 or 1, and their use for combating pests.

    摘要翻译: 其中R 1是C 4 -C 20烷基,C 4 -C 20烷氧基烷基,芳基或C 7 -C 20芳基烷基,或者是芳基或C 7 -C 20 - 芳基烷基, 1至3个选自卤素,C 1 -C 8 - 烷基,C 1 -C 8 - 卤代烷基,C 1 -C 8 - 烷氧基或C 1 -C 8 - 卤代烷氧基的取代基的芳基烷基,R 2为氢或C 1 -C 4烷基, R3是芳基或带有1至3个选自卤素,C 1 -C 8 - 烷基,C 1 -C 8 - 卤代烷基,C 1 -C 8 - 烷氧基或C 1 -C 8 - 卤代烷氧基的取代基的芳基或基团< 其中R 4,R 5和R 6是氢或C 1 -C 4 - 烷基,R 7是苯基或苯甲酰基,或苯基或苯甲酰基,其带有一至三个选自卤素,C 1 -C 8 - 烷基,C 1 -C 8 - ,C 1 -C 8 - 烷氧基和C 1 -C 8 - 卤代烷氧基,或含有一个或两个氧原子的五元或六元杂环,其未被取代或被一至三个C 1 -C 8烷基或一个C 3 -C 6 - 螺环烷基,l,m和n为0或1, 用于防治害虫。

    Preparation of polyphenylene ethers
    45.
    发明授权
    Preparation of polyphenylene ethers 失效
    聚苯醚的制备

    公开(公告)号:US4618668A

    公开(公告)日:1986-10-21

    申请号:US722154

    申请日:1985-04-11

    IPC分类号: C08G65/44 C08G65/46

    CPC分类号: C08G65/44

    摘要: High molecular weight polyphenylene ethers are prepared from monohydric phenols by an oxidative coupling reaction with oxygen in the presence of a solvent and of a catalyst complex consisting of a copper salt and an organic amine of the general formula ##STR1## where R.sup.1 is C.sub.2 -C.sub.20 -alkylidene, preferably C.sub.2 -C.sub.12 -alkylidene, or alkenylidene, R.sup.2 is H or C.sub.1 -C.sub.12 -alkyl, preferably C.sub.1 -C.sub.4 -alkyl, or C.sub.5 -C.sub.8 -cycloalkyl, each of which is unsubstituted or substituted by functional groups, and n is an integer from 1 to 4, preferably 1 or 2. Preferred functional groups are --OR.sup.3, --NHR.sup.3 or --SR.sup.3, in which R.sup.3 is H C.sub.1 -C.sub.12 -alkyl or C.sub.5 -C.sub.8 -cycloalkyl, and the most suitable amines are 3-tert.-butoxypropylamine, 4-tert.-butoxybutylamine, 3-tert.-butoxy-2-methylpropylamine, 3-tert.-butoxy-2,3-dimethylpropylamine, 3-tert.-butoxy-2-methyloctylamine and N-methyl-N-(4-tert.-butoxybutyl)-amine. The polyphenylene ethers can be processed to moldings by a thermoplastic method.

    摘要翻译: 高分子量聚苯醚通过在溶剂存在下与氧气的氧化偶联反应和由通式为“IMAGE”的铜盐和有机胺组成的催化剂络合物由一元酚制备,其中R1为C2-C20 亚烷基,优选C 2 -C 12亚烷基或亚烯基,R 2是H或C 1 -C 12烷基,优选C 1 -C 4 - 烷基或C 5 -C 8 - 环烷基,其各自是未取代的或被官能团取代,n 是1至4的整数,优选1或2.优选的官能团是-OR 3,-NHR 3或-SR 3,其中R 3是H-C 1 -C 12 - 烷基或C 5 -C 8 - 环烷基,最合适的胺是3 叔丁氧基丙基胺,4-叔丁氧基丁胺,3-叔丁氧基-2-甲基丙胺,3-叔丁氧基-2,3-二甲基丙胺,3-叔丁氧基-2-甲基辛胺和N- 甲基-N-(4-叔丁氧基丁基) - 胺。 可以通过热塑性方法将聚苯醚加工成模制品。

    Naphthalimide derivatives
    50.
    发明授权
    Naphthalimide derivatives 失效
    邻苯二甲酰亚胺衍生物

    公开(公告)号:US4220777A

    公开(公告)日:1980-09-02

    申请号:US961485

    申请日:1978-11-17

    IPC分类号: C09B57/08 C07D221/14

    CPC分类号: C07D221/14

    摘要: Naphthalimide derivatives of the general formula ##STR1## where R.sup.1 is hydrogen or C.sub.1 - to C.sub.4 -alkyl,R.sup.2 is nitrile or a radical containing a carbonyl group or an acetalized carbonyl group andR.sup.3 and R.sup.4 are unsubstituted or substituted alkyl.The compounds are excellent optical brighteners, especially for synthetic fibers.

    摘要翻译: 其中R 1为氢或C 1〜C 4 - 烷基,R 2为腈或含有羰基或缩醛化羰基的基团,R 3和R 4为未取代或取代的烷基的通式为“IMAGE”的萘二甲酰亚胺衍生物。 这些化合物是优异的荧光增白剂,特别是合成纤维。