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    • 2. 发明授权
    • Non-explosive preparations of 1-hydroxybenzotriazole
    • 1-羟基苯并三唑的非爆炸性制剂
    • US05998628A
    • 1999-12-07
    • US043356
    • 1998-03-16
    • Ferdinand HagedornHelmut Fiege
    • Ferdinand HagedornHelmut Fiege
    • C06B23/00C07D249/18
    • C07D249/18
    • Preparations consisting of 5 to 90%, relative to the total weight of the preparations, of mainly neutralized 1-hydroxy-benzotriazole of the formula ##STR1## in which R.sup.1 and R.sup.2, independently of one another, represent hydrogen or methyl andM.sup..sym. is one equivalent of an alkali metal or alkaline earth metal cation or H.sup..sym., whereby M.sup..sym. is present in the range of 85-100 equivalent-% as alkali metal or alkaline earth metal cation and in the range of 15-0 equivalent-% as H.sup..sym.,and the remainder to 100% of water, whereby the water containing preparations have a pH value of from 3 to 11 are nonexplosive and can be handled without danger.For the preparation, unsubstituted 1-hydroxy-benzotriazole is neutralized with an aqueous solution or suspension of a hydroxide, bicarbonate or carbonate of an alkali metal or alkaline earth metal. These preparations may be present as solutions, suspensions or pastes.
    • PCT No.PCT / EP96 / 03958 371日期:1998年3月16日 102(e)1998年3月16日PCT PCT 1996年9月10日PCT公布。 出版物WO97 / 11062 日期1997年3月27日相对于制剂总重量为5〜90%的制剂主要中和下式的1-羟基 - 苯并三唑:其中R 1和R 2彼此独立地表示氢或甲基,M (+)是1当量的碱金属或碱土金属阳离子或H(+),其中M(+)存在于碱金属或碱土金属阳离子的85-100当量的范围内,范围 相当于H(+)为15-0当量,其余为100%的水,因此含水制剂的pH值为3至11是非爆炸性的,可以无危险地处理。 为了制备,用碱金属或碱土金属的氢氧化物,碳酸氢盐或碳酸盐的水溶液或悬浮液中和未取代的1-羟基 - 苯并三唑。 这些制剂可以作为溶液,悬浮剂或糊剂存在。
    • 5. 发明授权
    • Process for the preparation of methylene compounds and the novel
compound 2-(2,4-Dichloro-5-fluorobenzyl)thiophene
    • 制备亚甲基化合物和新化合物2-(2,4-二氯-5-氟苄基)噻吩的方法
    • US5591869A
    • 1997-01-07
    • US568050
    • 1995-12-06
    • Helmut FiegeFerdinand Hagedorn
    • Helmut FiegeFerdinand Hagedorn
    • C07B31/00C07C1/32C07C17/35C07D307/38C07D333/08C07D333/12
    • C07D307/38C07B31/00C07D333/08C07D333/12
    • Methylene compounds are preferably prepared by reducing an aluminum halide complex of the formula ##STR1## in which R.sup.1 represents a C.sub.6 -C.sub.10 -aryl radical which is optionally substituted by 1 to 4 C.sub.1 -C.sub.4 -alkyl radicals, 1 to 4 fluorine, chlorine and/or bromine atoms, one C.sub.1 -C.sub.8 -alkoxy group and/or one acetoxy group, or represents a heteroaryl radical which is optionally substituted by one C.sub.1 -C.sub.4 -alkyl radical and/or one fluorine, chlorine or bromine atom and contains 5 to 10 C atoms and one O or S atom andR.sup.2 represents a C.sub.1 -C.sub.12 -alkyl radical which is optionally substituted by 1 to 5 fluorine, chlorine and/or bromine atoms, independently of R.sup.1 represents a radical as defined for R.sup.1 and, in the case where R.sup.1 =a C.sub.6 -C.sub.10 -aryl radical which is substituted by 1 to 4 fluorine, chlorine and/or bromine atoms, also represents a furyl or thienyl radical,Y represents fluorine, chlorine or bromine,with an amineborane of the formula ##STR2## in which R.sup.3 represents C.sub.1 -C.sub.4 -alkyl andR.sup.4 represents hydrogen or C.sub.1 -C.sub.4 -alkyl and/orwith sodium borohydride and/or with potassium borohydride.2-(2,4-Dichloro-5-fluorobenzyl)thiophene is obtainable in this way for the first time.
    • 亚甲基化合物优选通过还原任选被1至4个C 1 -C 4烷基,1至4个氟,氯和/或溴原子,一个C 1 -C 8 - 烷氧基取代的式偕基的卤化铝配合物 和/或一个乙酰氧基,或表示任选被一个C 1 -C 4 - 烷基和/或一个氟,氯或溴原子取代且含有5至10个C原子和一个O或S原子且R 2表示 任选被1至5个氟,氯和/或溴原子取代的C1-C12-烷基,独立于R1表示对R1定义的基团,并且在R1 = C6-C10芳基的情况下,其中 被1至4个氟,氯和/或溴原子取代,也代表呋喃基或噻吩基,Y代表氟,氯或溴,与式(III)的胺硼烷反应,其中R 3表示C 1 -C 4 - 烷基和R 4表示氢或C 1 -C 4烷基和/或与硼氢化钠 ydride和/或用硼氢化钾。 2-(2,4-二氯-5-氟苄基)噻吩可以首次以这种方式获得。