Furfuryl amides of phenoxyphenoxyalkanoic acids and herbicidal use
    21.
    发明授权
    Furfuryl amides of phenoxyphenoxyalkanoic acids and herbicidal use 失效
    苯氧基苯甲酸的糠酰胺和除草用途

    公开(公告)号:US4404018A

    公开(公告)日:1983-09-13

    申请号:US391088

    申请日:1982-06-23

    摘要: This invention discloses chemical compounds of the formula ##STR1## wherein X is halogen or trifluoromethyl; Y is selected from the group consisting of hydrogen, halogen, nitro and cyano; Z is selected from the group consisting of nitro, cyano and halogen; R.sup.1 is alkyl; R.sup.2 is hydrogen or alkyl; and R.sup.3 is furfuryl or tetrahydrofurfuryl. Further discussed are herbicidal compositions utilizing the aforedescribed compounds and methods of controlling undesired vegetation therewith.

    摘要翻译: 本发明公开了式(I)的化合物,其中X是卤素或三氟甲基; Y选自氢,卤素,硝基和氰基; Z选自硝基,氰基和卤素; R1是烷基; R2是氢或烷基; 并且R 3是糠基或四氢糠基。 进一步讨论的是利用上述化合物的除草组合物和用其控制不希望的植物的方法。

    Preparation of tetrahydrofuran-3-aldehydes
    22.
    发明授权
    Preparation of tetrahydrofuran-3-aldehydes 失效
    四氢呋喃-3-醛的制备

    公开(公告)号:US4292246A

    公开(公告)日:1981-09-29

    申请号:US108308

    申请日:1979-12-31

    摘要: A process for the preparation of a tetrahydrofuran-3-aldehyde of the formula ##STR1## in which R.sup.1 is hydrogen, or an alkyl or phenyl radical, andR.sup.2 is an alkyl, (C.sub.1 -C.sub.4 -alkoxy)-carbonyl, (C.sub.1 -C.sub.4 -alkoxy) carbonylmethylene or phenyl radical, orR.sup.1 and R.sup.2 together are an alkanediyl radical,comprising heating a 4,5-dihydro-1,3-dioxepine of the formula ##STR2## at about 100.degree. to 250.degree. C. in the presence of a catalytic amount of o-toluic acid. Advantageously about 0.05 to 0.15 mole of o-toluic acid is used per mole of the dioxepine, and heating is effected between about 120.degree. and 200.degree. C. at a pressure up to about 10 bars. The compounds, some of which are new, are insecticidally and acaricidally active.

    摘要翻译: 制备式“IMAGE”的四氢呋喃-3-醛的方法,其中R1是氢或烷基或苯基,R2是烷基,(C1-C4-烷氧基) - 羰基,(C1- C 1 -C 4 - 烷氧基)羰基亚甲基或苯基,或者R 1和R 2一起是烷二基,包括在约100-250℃下加热下式为“IMAGE”的4,5-二氢-1,3-二氧杂环庚烯 存在催化量的邻甲苯甲酸。 有利地,每摩尔二氧杂环庚烯使用约0.05至0.15摩尔邻甲苯甲酸,并且在高达约10巴的压力下加热约120至200℃。 这些化合物,其中一些是新的,具有杀虫活性和杀螨活性。

    Blocked isocyanate diols and preparation thereof
    23.
    发明授权
    Blocked isocyanate diols and preparation thereof 失效
    封闭异氰酸酯二醇及其制备方法

    公开(公告)号:US4284572A

    公开(公告)日:1981-08-18

    申请号:US969771

    申请日:1978-12-15

    摘要: Copolymerizable blocked isocyanate diols are prepared by reacting a blocking agent with an isocyanate group of an organic diisocyanate under controlled conditions, thereby forming a blocked isocyanate group, and reacting the second isocyanate group in a subsequent step with the amine portion of a selected amine diol under anhydrous conditions. The resultant products are used to prepare self-crosslinkable, linear polyurethanes of high molecular weight.

    摘要翻译: 可共聚的封端异氰酸酯二醇通过在受控条件下使封端剂与有机二异氰酸酯的异氰酸酯基团反应制备,从而形成封端的异氰酸酯基团,并使后续步骤中的第二异氰酸酯基团与选择的胺二醇的胺部分反应 无水条件。 所得产物用于制备高分子量的自交联线型聚氨酯。

    Cyanomethyl substituted tetrahydropyrans useful as fragrances for
detergents
    24.
    发明授权
    Cyanomethyl substituted tetrahydropyrans useful as fragrances for detergents 失效
    氰基甲基取代的四氢吡喃可用作洗涤剂的香料

    公开(公告)号:US4150037A

    公开(公告)日:1979-04-17

    申请号:US918445

    申请日:1978-06-23

    IPC分类号: C07D307/16 C07D309/04

    CPC分类号: C07D307/16 C07D309/04

    摘要: In the cyclization of gamma-delta or delta-epsilon unsaturated alcohols in order to obtain certain tetrahydrofuran and tetrahydropyran derivatives which are useful in the perfuming of detergents, the improvement consisting in that the alcohol to be cyclized is reacted with a cationic ion-exchange resin. The useful temperature range is from 20.degree. C. to 150.degree. C.: in practice the alcohol and the resinare boiled together or refluxed until the reaction is completed. A number of examples is reported and physicochemical data are given.

    摘要翻译: 在γ-δ或δ-ε不饱和醇的环化中,为了获得可用于加香洗涤剂的某些四氢呋喃和四氢吡喃衍生物,改进之处在于将要环化的醇与阳离子离子交换树脂 。 有用的温度范围为20℃至150℃。实际上,将醇和树脂一起煮沸或回流至反应完成。 报道了一些实例并给出了物理化学数据。

    Certain 8-(2-tetrahydrofuryl)octanoic acid compounds with prostaglandin
like biological effects
    26.
    发明授权
    Certain 8-(2-tetrahydrofuryl)octanoic acid compounds with prostaglandin like biological effects 失效
    某些8-(2-四氢呋喃基)辛酸化合物与前列腺素类似生物学作用

    公开(公告)号:US4048198A

    公开(公告)日:1977-09-13

    申请号:US686987

    申请日:1976-05-17

    IPC分类号: C07D307/54 C07D307/16

    CPC分类号: C07D307/54 Y10S514/822

    摘要: This invention relates to therapeutically active 2,5-tetrahydrofurane derivatives, wherein the substituent in the 2-position is a group ROOC--(CH.sub.2).sub.7, in which R is hydrogen or lower alkyl, the 5-substituent being an alkyl or alkenyl group of 8 to 12 carbon atoms, which may be substituted with an oxygen atom, a hydroxy group or a lower alkyl group at the third carbon atom, counted from the furane ring, and to the production thereof.

    摘要翻译: 本发明涉及治疗活性的2,5-四氢呋喃衍生物,其中2-位上的取代基是ROOC-(CH 2)7基团,其中R是氢或低级烷基,5-取代基是烷基或链烯基 8〜12个碳原子的烷氧基,可以被氧原子,羟基或第三个碳原子的低级烷基取代,从呋喃环计数,生成。