Preparation of muscone, intermediates for this preparation and
preparation of said intermediates
    55.
    发明授权
    Preparation of muscone, intermediates for this preparation and preparation of said intermediates 失效
    麦芽糖的制备,本制剂的中间体和制备中间体

    公开(公告)号:US5081311A

    公开(公告)日:1992-01-14

    申请号:US524929

    申请日:1990-05-18

    摘要: Muscone of the formula I ##STR1## is prepared by a process in which an open-chain 2,15-diketone of the general formula IICH.sub.3 --CO--X--CO--CH.sub.3 (II)where X is one of the radicals--(--CH.sub.2 --).sub.12 -- (a)--CH.dbd.CH--(--CH.sub.2 --).sub.8 --CH.dbd.CH-- (b)--CH.sub.2 --CH.dbd.CH--(--CH.sub.2 --).sub.6 --CH.dbd.CH--CH.sub.2 --(c)--CH.sub.2 --CH.sub.2 --CH.dbd.CH--(--CH.sub.2 --).sub.4 --CH.dbd.CH--CH.sub.2 --CH.sub.2 -- (d) or--CH.sub.2 --CH.sub.2 CH.sub.2 --CH.dbd.CH--(--CH.sub.2 --).sub.2 --CH.dbd.CH--CH.sub.2 --CH.sub.2 --CH.sub.2 -- (e)is brought into contact, at from 300.degree. to 400.degree. C. in the presence of from 5 to 15% by weight, based on the amount of catalyst, of water, in the gas phase, with a fixed-bed catalyst containing TiO.sub.2, CeO.sub.2 or the ThO.sub.2 as the catalytically active compound and the unsaturated cyclic ketone formed by intramolecular aldol condensation is subjected to catalytic hydrogenation. Furthermore, the open-chain unsaturated ketones of the formulae IIb, IIc and IId and advantageous processes for their preparation and their use as intermediates for a simple industrial synthesis of muscone are claimed.

    摘要翻译: 通式Ⅰ(I)的肌醇通过以下方法制备,其中通式II CH3-CO-X-CO-CH3(Ⅱ)的开链2,15-二酮其中X是 基团 - ( - CH2-)12-(a)-CH = CH - ( - CH2-)8-CH = CH-(b)-CH2-CH = CH-( - CH2-)6-CH = CH-CH2 - (c)-CH 2 -CH 2 -CH = CH - ( - CH 2 - )4 -CH = CH-CH 2 -CH 2 - (d)或-CH 2 -CH 2 CH 2 -CH = CH - ( - CH 2 - )2 -CH = CH-CH 2 -CH 2 -CH 2 - (e)在300-400℃下,以5-15重量%的量存在下,基于催化剂的量,在气体中 使用含有TiO 2,CeO 2或ThO 2作为催化活性化合物的固定床催化剂和通过分子内醛醇缩合形成的不饱和环酮进行催化氢化。 此外,要求具有式IIb,IIc和IId的开链不饱和酮及其制备的有利方法及其作为简单的工业合成肌肉的中间体的用途。

    Isoxazolines as intermediates to furans
    56.
    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。

    Cyclohexane-1,3-dione derivatives, their preparation and herbicides
containing these compounds
    60.
    发明授权
    Cyclohexane-1,3-dione derivatives, their preparation and herbicides containing these compounds 失效
    环己烷-1,3-二酮衍生物,它们的制备和含有这些化合物的除草剂

    公开(公告)号:US4728357A

    公开(公告)日:1988-03-01

    申请号:US759925

    申请日:1985-07-29

    CPC分类号: A01N35/06 A01N37/44 A01N41/10

    摘要: Cyclohexane-1,3-dione derivatives of the formula ##STR1## where R.sup.1 is alkyl of from 2 to 4 carbon atoms, R.sup.2 is alkyl, unsubstituted or halogen-substituted alkenyl, or alkynyl, each of from 2 to 5 carbon atoms, R.sup.3 is a saturated or unsaturated hydrocarbon radical of up to 4 carbon atoms which is unsubstituted or substituted by 1 to 3 hydrocarbon radicals of a total of up to 8 carbon atoms, by aryl of from 6 to 10 carbon atoms, or by benzyl, R.sup.4 is, when R.sup.3 is unsaturated or olefinically or aromatically substituted, alkyl of from 1 to 6 carbon atoms, R.sup.4 is further unsubstituted or halogen-substituted alkenyl of from 2 to 6 carbon atoms, alkynyl of from 2 to 6 carbon atoms, naphthyl, arylalkyl or arylalkenyl, where aryl is of from 6 to 10 carbon atoms and is unsubstituted or substituted by alkyl or alkoxy, each of from 1 to 3 carbon atoms, or by halogen, and where alkyl or alkenyl is of from 2 to 3 carbon atoms, at least 2 of which being between aryl and sulfur, Z is H, CN, CH.sub.3, methoxycarbonyl or ethoxycarbonyl, and n is 0,1 or 2, and salts thereof.

    摘要翻译: 其中R1是2至4个碳原子的烷基,R2是烷基,未取代的或卤素取代的烯基或炔基,其中每个具有2-5个碳原子的环烷基-1,3-二酮衍生物, R3是至多4个碳原子的饱和或不饱和烃基,其未被取代或被1至3个总共多达8个碳原子的烃基,6至10个碳原子的芳基或苄基,R 4 当R3是不饱和或烯或芳基取代时,具有1至6个碳原子的烷基,R4是未取代的或含2至6个碳原子的卤素取代的链烯基,2至6个碳原子的炔基,萘基,芳基烷基 或芳基烯基,其中芳基为6至10个碳原子,未被取代或被烷基或烷氧基取代,各自为1至3个碳原子,或被卤素取代,并且其中烷基或烯基为2至3个碳原子, 其中至少2个在芳基和硫之间,Z是H,CN,CH3,甲氧基 羰基或乙氧羰基,n为0,1或2,及其盐。