Production of virtually pure 1-amino-8-nitro-4,5-dihydroxyanthraquinone
    21.
    发明授权
    Production of virtually pure 1-amino-8-nitro-4,5-dihydroxyanthraquinone 失效
    生产几乎纯的1-氨基-8-硝基-4,​​5-二羟基蒽醌

    公开(公告)号:US4154747A

    公开(公告)日:1979-05-15

    申请号:US917252

    申请日:1978-06-20

    IPC分类号: C07C225/36

    CPC分类号: C07C221/00 C07C2103/24

    摘要: A process for the preparation of 1-amino-8-nitro-4,5-dihydroxyanthraquinone by partially reducing the corresponding dinitrohydroxyanthraquinone and isolating the reduction product, in which crude 1,8-dinitro-4,5-dihydroxyanthraquinone obtained by nitrating 4,5-dihydroxyanthraquinone is partially reduced in a phenol-water mixture, which contains from 5 to 50% by weight of water, in the presence of an alkali metal phenolate, by means of a reductone, reductonate or a mixture of these. The product is virtually free from by-products and is suitable for use for the synthesis of dyes.

    摘要翻译: 通过部分还原相应的二硝基蒽醌并分离还原产物制备1-氨基-8-硝基-4,​​5-二羟基蒽醌的方法,其中通过硝化4获得的粗1,8-二硝基-4,​​5-二羟基蒽醌, 5-羟基蒽醌在酚 - 水混合物中部分还原,其中含有5至50重量%的水,在碱金属酚盐存在下,通过还原酮,还原醛或它们的混合物。 该产品几乎不含副产物,适用于合成染料。

    Isoxazolines as intermediates to furans
    24.
    发明授权
    Isoxazolines as intermediates to furans 失效
    异恶唑啉作为呋喃的中间体

    公开(公告)号:US4954633A

    公开(公告)日:1990-09-04

    申请号:US384910

    申请日:1989-07-25

    摘要: Isoxazolines of the general formula II ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each unsubstituted or halogen-, haloalkyl-, alkoxy-, haloalkoxy-, nitro-, cyano-, dialkylphosphonyl- or alkoxycarbonyl-substituted alkyl, aryl, aralkyl, alkoxycarbonyl or dialkoxyphosphonyl, R.sup.2 and R.sup.4 are each also hydrogen and R.sup.3 is also hydroxyalkyl which is unblocked or blocked by a detachable protective group or is haloalkyl, X is hydrogen or a detachable protective group, are used to prepare furans.

    摘要翻译: 其中R 1,R 2,R 3和R 4各自是未取代的或卤素,卤代烷基 - ,烷氧基 - ,卤代烷氧基 - ,硝基 - ,氰基 - ,二烷基膦基 - 或烷氧基羰基取代的烷基的异恶唑啉 芳基,芳烷基,烷氧基羰基或二烷氧基膦酰基,R2和R4各自也是氢,R3也是被可分离的保护基团阻断或封闭的羟基烷基,或者是卤代烷基,X是氢或可分离的保护基,用于制备呋喃。

    Bifunctional alkali metal compounds, preparation and use thereof as
polymerization initiators
    25.
    发明授权
    Bifunctional alkali metal compounds, preparation and use thereof as polymerization initiators 失效
    双官能碱金属化合物,其制备和用途为聚合引发剂

    公开(公告)号:US4861742A

    公开(公告)日:1989-08-29

    申请号:US238851

    申请日:1988-09-01

    CPC分类号: C07F1/02 C07F1/04 C08F4/46

    摘要: Bifunctional initiators for anionic polymerization are prepared by reacting an alkenylaromatic compound of the general formula I ##STR1## where Ar is aromatic hydrocarbyl which may be substituted by alkyl or another group inert toward organoalkali metal compounds and may contain nitrogen,R.sup.1 is linear or branched alkyl, cycloalkyl, alkenyl or aralkyl or from 1 to 22 carbon atoms where at least the carbon adjacent to the double bond is saturated and aliphatic,R.sup.2 is hydrogen or is likewise linear or branched alkyl, cycloalkyl, alkenyl or aralkyl or from 1 to 22 carbon atoms where at least the carbon adjacent to the double bond is saturated and aliphatic, and where R.sup.1 and R.sup.2 may be part of a common cycloaliphatic ring, in the presence of one or more ethers and of tertiary amines and in the presence or absence of a further inert aliphatic, alicyclic or aromatic solvent, at from -20.degree. to +70.degree. C. with preferably lithium and with dimerization, with the use in addition of poly-cyclic aromatic hydrocarbons which catalytically promote the dimerization in amount of from 0.001 to 50, preferably 20, mol % and with or without the removal of the ethers and/or tertiary amines after the preparation, and are used for polymerizing anionically polymerizable monomers such as styrene.

    摘要翻译: 用于阴离子聚合的双功能引发剂通过使通式I的链烯基芳族化合物(I)反应来制备,其中Ar是可被烷基取代的芳族烃基或对有机碱金属化合物惰性的另一个基团,并且可以含有氮,R 1是直链的 或支链烷基,环烷基,烯基或芳烷基或1至22个碳原子,其中至少与双键相邻的碳饱和和脂族,R2是氢或同样是直链或支链烷基,环烷基,烯基或芳烷基或1 至少22个碳原子,其中至少邻近双键的碳饱和和脂族,并且其中R1和R2可以是常见的脂环族环的一部分,在一个或多个醚和叔胺的存在下, 不存在另外惰性的脂族,脂环族或芳族溶剂,在-20至+ 70℃,优选锂和二聚作用,同时使用多环 催化促进二聚的量为0.001至50,优选为20摩尔%的芳烃,并且在制备后有或没有除去醚和/或叔胺,并用于聚合阴离子聚合单体如苯乙烯。

    Cyclohexane-1,3-dione derivatives
    26.
    发明授权
    Cyclohexane-1,3-dione derivatives 失效
    环己烷-1,3-二酮衍生物

    公开(公告)号:US4617050A

    公开(公告)日:1986-10-14

    申请号:US750996

    申请日:1985-07-02

    CPC分类号: A01N37/44 A01N35/06

    摘要: Cyclohexane-1,3-dione derivatives of the formula I ##STR1## where R.sup.1 is cycloalkyl of 3 to 12 carbon atoms which may or may not be olefinically monounsaturated to tetraunsaturated, can be substituted by not more than 3 methyl or ethyl groups, one vinyl, methylvinyl or allyl group, 1 or 2 chlorine atoms or one alkoxy group of 1 to 4 carbon atoms and can be bridged by an alkylene chain of not more than 4 carbon atoms, X is alkylene of 1 to 5 carbon atoms, which can be monounsaturated or diunsaturated, interrupted by not more than 2 sulfur or oxygen atoms and substituted by not more than 3 alkyl groups of 1 to 3 carbon atoms, R.sup.2 is hydrogen of alkoxycarbonyl where alkoxy is of 1 to 2 carbon atoms, R.sup.3 is alkyl of 1 to 4 carbon atoms, R.sup.4 is alkyl of 1 to 3 carbon atoms, alkenyl of 3 or 4 carbon atoms, propargyl or haloalkenyl of 3 or 4 carbon atoms and 1 to 3 halogen atoms, and the salts of these compounds, processes for their preparation, herbicides containing these compounds, and their use.

    摘要翻译: 式I的环己烷-1,3-二酮衍生物,其中R1是3-12个碳原子的环烷基,其可以是或不是烯属单不饱和的四不饱和的,可以被不多于3个甲基或乙基取代, 一个乙烯基,甲基乙烯基或烯丙基,1或2个氯原子或1至4个碳原子的一个烷氧基,并且可以通过不超过4个碳原子的亚烷基链桥连,X是1至5个碳原子的亚烷基, 可以是不饱和或不饱和的,被不多于2个硫或氧原子中断并被不多于3个1至3个碳原子的烷基取代,R2是烷氧基为1至2个碳原子的烷氧基羰基的氢,R3是烷基 具有1至4个碳原子的烷基,R 4是1至3个碳原子的烷基,3或4个碳原子的链烯基,3或4个碳原子和1至3个卤素原子的炔丙基或卤代烯基,以及这些化合物的盐, 它们的制备,含有这些化合物的除草剂,以及它们的u se。

    Preparation of enol ethers
    28.
    发明授权
    Preparation of enol ethers 失效
    烯醇醚的制备

    公开(公告)号:US4960954A

    公开(公告)日:1990-10-02

    申请号:US329007

    申请日:1989-03-27

    摘要: Enol ethers of the general formula I ##STR1## are prepared by eliminating the radical R.sup.4 OH from acetals or ketals of the formula II ##STR2## where the substituents R.sup.1 and R.sup.2 are each independently of the other hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.3 -C.sub.8 cycloalkyl, C.sub.3 -C.sub.8 -cycloalkenyl, unsubstituted or C.sub.1 -C.sub.4 -alkyl-substituted aryl or C.sub.7 -C.sub.16 aralkyl,R.sup.3 is --CR.sup.5 (OR.sup.4).sub.2, --COOR.sup.4 or --COR.sup.4,R.sup.4 is C.sub.1 -C.sub.20 -alkyl, C.sub.7 -C.sub.20 -alkylaryl or C.sub.7 -C.sub.20 -aralkyl,R.sup.5 is hydrogen or C.sub.1 -C.sub.8 -alkyl,in a process which comprises performing the reaction in the presence of phosphoric acid and/or phosphates on a carrier material and/or phosphates and/or zeolites as catalysts.

    摘要翻译: 通式I(I)的烯醇醚通过从式II(II)的缩醛或缩酮中除去基团R 4 OH来制备,其中取代基R 1和R 2各自独立地为氢,C1- C 1 -C 8烷基,C 3 -C 8环烷基,C 3 -C 8 - 环烯基,未取代的或C 1 -C 4烷基取代的芳基或C 7 -C 16芳烷基,R 3是-CR 5(OR 4)2,-COOR 4或-COR 4, - 烷基,C 7 -C 20 - 烷基芳基或C 7 -C 20 - 芳烷基,R 5是氢或C 1 -C 8 - 烷基,其包括在载体材料上的磷酸和/或磷酸盐存在下进行反应和/或 磷酸盐和/或沸石作为催化剂。

    Pyrethroids and their use for controlling pests
    29.
    发明授权
    Pyrethroids and their use for controlling pests 失效
    拟除虫菊酯及其用于防治害虫的用途

    公开(公告)号:US4870100A

    公开(公告)日:1989-09-26

    申请号:US940649

    申请日:1986-12-11

    摘要: 2-benzylfuryl compounds of the general formula I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are identical or different substituents and are each hydrogen, halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, haloalkylthio, alkenyl or haloalkenyl, each of not more than 6 carbon atoms, n being 1, 2 or 3 where R.sup.3 is not hydrogen, and R.sup.4 and R.sup.5 are each hydrogen or alkyl of not more than 6 carbon atoms, R is --CHO or CHR.sup.6 OA, R.sup.6 is hydrogen, cyano, alkyl, alkenyl, haloalkenyl or alkynyl, each of not more than 6 carbon atoms, or carboxamide, and A is either hydrogen or a radical of an acid typical for pyrethroids, with the proviso that R.sup.2 is not hydrogen, chlorine, bromine, methyl or methoxy when R.sup.1 is hydrogen or methyl and R.sup.3 and A are each hydrogen, and furthermore with the proviso that R.sup.1 and R.sup.2 are not methyl when A is a radical of tetramethylcyclopropanecarboxylic acid, and finally with the proviso that R.sup.2 is not methyl, chlorine, bromine or methoxy and R.sup.1 and R.sup.3 are not hydrogen when A is a radical of chrysanthemumic acid, their preparation and their use as intermediates for crop protection agents or as crop protection agents.

    摘要翻译: 通式I(I)的2-苄基呋喃基化合物,其中R 1,R 2和R 3是相同或不同的取代基,并且各自为氢,卤素,烷基,卤代烷基,烷氧基,卤代烷氧基,卤代烷硫基,烯基或卤代烯基, 大于6个碳原子,n为1,2或3,其中R3不是氢,R4和R5各自为氢或不超过6个碳原子的烷基,R为-CHO或CHR6OA,R6为氢,氰基,烷基 ,烯基,卤代烯基或炔基,各自不超过6个碳原子,或甲酰胺,A是氢或拟除虫菊酯典型的酸的基团,条件是R2不是氢,氯,溴,甲基或甲氧基 当R 1为氢或甲基且R 3和A各自为氢时,此外,当A为四甲基环丙烷羧酸基时,R 1和R 2不为甲基,最后条件是R 2不为甲基,氯,溴或 甲氧基,当A是基团时,R 1和R 3不是氢 菊花酸,它们的制备及其作为作物保护剂的中间体或作为作物保护剂的用途。