Preparation of cyclic 6-membered to 8-membered vinylene-1,2-dioxy
compounds
    41.
    发明授权
    Preparation of cyclic 6-membered to 8-membered vinylene-1,2-dioxy compounds 失效
    环状6元至8元亚乙烯基-1,2-二氧化合物的制备

    公开(公告)号:US5003089A

    公开(公告)日:1991-03-26

    申请号:US379412

    申请日:1989-07-13

    摘要: Cyclic 6-membered to 8-membered 1,2-vinylenedioxy compounds of the general formula I ##STR1## where A is ##STR2## R.sup.1 to R.sup.7 independently of one another are each hydrogen, C.sub.1 -C.sub.8 -alkyl, C.sub.2 -C.sub.16 -alkoxyalkyl, C.sub.2 -C.sub.8 -alkenyl, C.sub.2 -C.sub.8 -alkynyl, C.sub.5 -C.sub.8 -cycloalkyl, aryl, C.sub.7 -C.sub.10 -alkylphenyl, C.sub.7 -C.sub.10 -phenalkyl, C.sub.8 -C.sub.10 -phenalkenyl or a heterocyclic structure, or R.sup.2 and R.sup.3, R.sup.2 and R.sup.4, R.sup.3 and R.sup.4, R.sup.2 and R.sup.6, R.sup.3 and R.sup.6, R.sup.4 and R.sup.5 or R.sup.6 and R.sup.7 together form a cycloaliphatic or heterocyclic ring, and R.sup.1 to R.sup.7 may furthermore carry substituents which are inert under the reaction conditions, and n is 0 or 1, are prepared by a process in which a cyclic 2-oxymethyl-1,3-dioxa compound or one of its derivatives of the general formula II ##STR3## where R.sup.1 to R.sup.7, A and n have the abovementioned meanings, and R.sup.8 is hydrogen or C.sub.1 -C.sub.12 -alkyl, is converted in the presence of an acidic catalyst at from 150.degree. to 450.degree. C. and under from 0.001 to 50 bar, some of the compounds obtained being novel.

    摘要翻译: 其中A为彼此独立的通式I(I)的环状6元至8元1,2-亚乙烯基二氧基化合物各自为氢,C 1 -C 8 - 烷基,C 2 -C 18 - C16 - 烷氧基烷基,C2-C8-烯基,C2-C8-炔基,C5-C8-环烷基,芳基,C7-C10-烷基苯基,C7-C10-苯基烷基,C8-C10-苯基烯基或杂环结构,或R2和R3 ,R 2和R 4,R 3和R 4,R 2和R 6,R 3和R 6,R 4和R 5或R 6和R 7共同形成脂环族或杂环,并且R 1至R 7还可以具有在反应条件下为惰性的取代基,n为 0或1的化合物通过其中R 1至R 7,A和n具有上述通式II的环状2-氧甲基-1,3-二氧杂化合物或其衍生物之一的方法制备 意义,R8是氢或C1-C12烷基,在酸性催化剂存在下,在150-450℃下,在0.001至50巴下进行转化,得到的一些化合物是新的。

    Preparation of 2-alkyl-4,5-dihydroxymethylimidazoles
    43.
    发明授权
    Preparation of 2-alkyl-4,5-dihydroxymethylimidazoles 失效
    2-烷基-4,5-二羟甲基咪唑的制备

    公开(公告)号:US4658035A

    公开(公告)日:1987-04-14

    申请号:US754852

    申请日:1985-07-12

    IPC分类号: C07D233/54 C07D233/64

    CPC分类号: C07D233/64

    摘要: 2-Alkyl-4,5-dihydroxymethyl-imidazoles of the formula ##STR1## where R is alkyl, are prepared by a process in which an imidazole of the formula ##STR2## is reacted with not less than 2 moles of formaldehyde in the presence of a base.

    摘要翻译: 通过其中式II的咪唑与不小于2摩尔的甲醛反应的方法制备其中R是烷基的式I的2-烷基-4,5-二羟基甲基 - 咪唑,其中R是烷基, 一个基地的存在。

    Microbiocidal substituted benzylimidazolium salts
    45.
    发明授权
    Microbiocidal substituted benzylimidazolium salts 失效
    杀微生物取代的苄基咪唑鎓盐

    公开(公告)号:US4481211A

    公开(公告)日:1984-11-06

    申请号:US441803

    申请日:1982-11-15

    CPC分类号: A01N43/50 C07D233/68

    摘要: Substituted benzylimidazolium salts of the formula ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are identical or different and are each hydrogen, C.sub.1 -C.sub.4 -alkyl or halogen, R.sup.4 is alkyl of 8 to 14 carbon atoms or benzyl which is unsubstituted or substituted by halogen or alkyl, R.sup.5 is hydrogen, alkyl of 1 to 8 carbon atoms, phenyl or benzyl, R.sup.6 is alkyl of 1 to 4 carbon atoms or halogen, R.sup.7 is alkyl of 1 to 4 carbon atoms or halogen and X is an anion of an acid, in particular of a hydrohalic acid, and microbicides containing these compounds.

    摘要翻译: 取代的式“IMAGE”的苄基咪唑鎓盐,其中R 1,R 2和R 3相同或不同并且各自为氢,C 1 -C 4 - 烷基或卤素,R 4为8至14个碳原子的烷基或未被取代或被卤素取代的苄基 或烷基,R 5为氢,1至8个碳原子的烷基,苯基或苄基,R 6为1至4个碳原子的烷基或卤素,R 7为1至4个碳原子的烷基或卤素,X为酸的阴离子 ,特别是氢卤酸,以及含有这些化合物的杀微生物剂。

    Manufacture of carbamates
    46.
    发明授权
    Manufacture of carbamates 失效
    制造氨基甲酸酯

    公开(公告)号:US4156784A

    公开(公告)日:1979-05-29

    申请号:US831750

    申请日:1977-09-09

    CPC分类号: D06M15/423 C07C269/00

    摘要: Carbamates are manufactured by reaction of alcohols with urea in the presence of ion exchangers containing nickel.The products are starting materials for the manufacture of textile finishing agents, dyes and plant protection agents.

    摘要翻译: 通过在含有镍的离子交换剂存在下,通过醇与尿素的反应来制造氨基甲酸酯。