Oxidation process for preparing 4-acyloxy azetidinones in a two-phase
system
    1.
    发明授权
    Oxidation process for preparing 4-acyloxy azetidinones in a two-phase system 失效
    在两相体系中制备4-酰氧基氮杂环丁酮的氧化方法

    公开(公告)号:US5043440A

    公开(公告)日:1991-08-27

    申请号:US107050

    申请日:1987-10-13

    CPC分类号: C07D205/08 Y02P20/55

    摘要: Process for preparing compounds according to formula (I) ##STR1## wherein R.sub.1 and R.sub.2 represent a hydrogen atom or a protective group and R.sub.3 represents a C.sub.1 -C.sub.10 alkyl or an aryl group, by oxidation of compounds according to formula (II) ##STR2## wherein R.sub.1, R.sub.2 and R.sub.3 have the above-mentioned meanings, in a two-phase system comprising:a) an organic phase including a 4-acylazetidinone compound (II) and an "onium" salt dissolved in a medium immiscible with water,b) an aqueous solution including an alkali or alkaline-earth metal salt of an organic or inorganic peracid.4-Acyloxyazetidinones (I) are useful intermediates in the synthesis of anti-bacterial compounds.

    摘要翻译: 制备式(I)化合物的方法其中R 1和R 2表示氢原子或保护基,R 3表示C 1 -C 10烷基或芳基,通过式(II)化合物的氧化 )其中R1,R2和R3具有上述含义,在两相体系中,包括:a)包含4-酰基氮杂环丁酮化合物(II)和溶于 与水不混溶的介质,b)包含有机或无机过酸的碱金属或碱土金属盐的水溶液。 4-酰氧基氮杂环丁酮(I)是合成抗菌化合物的有用中间体。

    Process for the enzymatic separation of the optical isomers of racemic
oxazolidinonic derivatives
    2.
    发明授权
    Process for the enzymatic separation of the optical isomers of racemic oxazolidinonic derivatives 失效
    外消旋恶唑烷酮衍生物的光学异构体的酶分离方法

    公开(公告)号:US4933290A

    公开(公告)日:1990-06-12

    申请号:US137721

    申请日:1987-12-24

    IPC分类号: C12P17/14 C12P41/00

    CPC分类号: C12P17/14 C12P41/004

    摘要: There is disclosed a process for the biotechnological resolution, by enzymatic esterification of the corresponding racemic mixture of the S(+) and R(-) optical isomers of the oxazolidinonic compounds having formula (I): ##STR1## wherein R represents a, linear or branched, C.sub.1 -C.sub.8 alkyl group, which process is characterized in that, the racemic 3-alkyl-5-hydroxymethyl-oxazolidin-2-one derivative of formula (I) is reacted with an esterifying compound, selected from esters having formula (III): ##STR2## wherein R represents a, linear or branched, C.sub.1 -C.sub.10 alkyl or alkenyl group and R" represents a linear or branched, C.sub.1 -C.sub.4 alkyl, alkenyl group, a haloalkyl (chlorine, bromine) group or a diacyl glycerolic group or from acids having formula (IV):R'"--COOH (IV)wherein R'" represents a, linear or branched, C.sub.1 -C.sub.20 alkyl or alkenyl group or from anhydrides having formula (V): ##STR3## wherein R.sup.IV represents a, linear or branched, C.sub.1 -C.sub.6 alkyl group, in the presence of an enzyme, immobilized on a porous carrier, capable of giving rise selectively to the esterification reaction of the R(-) isomer, while leaving the S(+) isomer substantially unchanged, which latter is then separated according to known techniques.

    Process for the enzymatic separation of the optical isomers of racemic
.alpha.-alkyl-substituted primary alcohols
    3.
    发明授权
    Process for the enzymatic separation of the optical isomers of racemic .alpha.-alkyl-substituted primary alcohols 失效
    用于酶分离外消旋的α-烷基取代的伯醇的光学异构体的方法

    公开(公告)号:US4980291A

    公开(公告)日:1990-12-25

    申请号:US307913

    申请日:1989-02-09

    IPC分类号: C12P7/62 C12P41/00

    CPC分类号: C12P41/004 C12P7/62

    摘要: Biotechnological resolution by means of enzymatic transesterification of the relevant racemic mixture of the optical isomers of .alpha.-alkyl-substituted primary alcohols having the formula (I): ##STR1## wherein: R represents a linear or branched (C.sub.1 -C.sub.20)-alkyl or alkenyl group or an aryl group, also substituted or condensed with other groups, in particular a group of formula (II) or (III): ##STR2## wherein: R.sup.ii represents a (C.sub.1 -C.sub.8)-alkyl group, a (C.sub.1 -C.sub.4)-alkenyl group, an alkoxy, phenyl, phenoxy, benzoyl, or heterocyclic group;R.sup.iii represents a hydrogen or halogen atom;R.sup.iv represents a (C.sub.1 -C.sub.4)-alkyl group, and whereinR.sup.i represents a (C.sub.1 -C.sub.4)-alkyl group either equal to, or different from, R,in the presence of an enzyme either free or immobilized on a support capable of selectively causing the S isomer to be esterified, with the R isomer being left substantially unchanged, said isomers being then separated according to techniques known from the prior art. The process is used in the synthesis of antiinflammatory agents.

    Process for the preparation of hydrogen peroxide
    4.
    发明授权
    Process for the preparation of hydrogen peroxide 失效
    过氧化氢的制备方法

    公开(公告)号:US5783164A

    公开(公告)日:1998-07-21

    申请号:US844675

    申请日:1997-04-21

    CPC分类号: C01B15/0275

    摘要: A process is described for the preparation of hydrogen peroxide by the reaction of carbon monoxide, oxygen and water in an organic solvent immiscible with water, in the presence of a catalytic complex soluble in the organic solvent, deriving from the combination of a palladium salt, a non-coordinating organic or inorganic acid and a ligand capable of binding itself to the palladium atom, characterized in that said ligand is a mono or polydentate nitrogenated compound.

    摘要翻译: 描述了一种通过一氧化碳,氧和水在与水不混溶的有机溶剂中在可溶于有机溶剂的催化剂络合物的存在下制备过氧化氢的方法,其衍生自钯盐, 非配位的有机或无机酸和能够与钯原子结合的配体,其特征在于所述配位体是单或多齿氮化的化合物。

    PROCESS FOR THE PRODUCTION OF BIO-OIL FROM SOLID URBAN WASTE
    5.
    发明申请
    PROCESS FOR THE PRODUCTION OF BIO-OIL FROM SOLID URBAN WASTE 有权
    从固体废物生产生物油的工艺

    公开(公告)号:US20120172642A1

    公开(公告)日:2012-07-05

    申请号:US13395028

    申请日:2010-09-01

    IPC分类号: C10L1/04 C12P39/00 C12P5/00

    摘要: A process for the production of bio-oil from solid urban waste, comprising the following steps: a) subjecting said solid urban waste to liquefaction, obtaining a mixture including an oily phase consisting of bio-oil, a solid phase and an aqueous phase; b) subjecting the aqueous phase obtained in the liquefaction step a) to fermentation, obtaining a fermented biomass; c) feeding the fermented biomass obtained in the fermentation step b) to the liquefaction step a). The bio-oil (or bio-crude) thus obtained can be advantageously used in the production of biofuels which can be used as such or mixed with other motor vehicle fuels. Alternatively, this bio-oil (or bio-crude) can be used as such (biocombustible) or mixed with fossil combustibles (combustible oil, coal, etc.) for the generation of electric energy or heat.

    摘要翻译: 一种从固体城市废物生产生物油的方法,包括以下步骤:a)使所述固体城市废物进行液化,得到包括由生物油,固相和水相组成的油相的混合物; b)使在液化步骤a)中获得的水相发酵,获得发酵生物质; c)将发酵步骤b)中获得的发酵生物质送入液化步骤a)。 由此获得的生物油(或生物粗品)可有利地用于生产生物燃料,其可以原样使用或与其它机动车辆燃料混合。 或者,该生物油(或生物粗品)可以原样使用(生物燃烧)或与化石可燃物(可燃油,煤等)混合以产生电能或热量。

    Process for the production of bio-oil from solid urban waste
    6.
    发明授权
    Process for the production of bio-oil from solid urban waste 有权
    从固体城市废物生产生物油的过程

    公开(公告)号:US09006502B2

    公开(公告)日:2015-04-14

    申请号:US13395028

    申请日:2010-09-01

    摘要: A process for the production of bio-oil from solid urban waste, comprising the following steps: a) subjecting said solid urban waste to liquefaction, obtaining a mixture including an oily phase consisting of bio-oil, a solid phase and an aqueous phase; b) subjecting the aqueous phase obtained in the liquefaction step a) to fermentation, obtaining a fermented biomass; c) feeding the fermented biomass obtained in the fermentation step b) to the liquefaction step a). The bio-oil (or bio-crude) thus obtained can be advantageously used in the production of biofuels which can be used as such or mixed with other motor vehicle fuels. Alternatively, this bio-oil (or bio-crude) can be used as such (biocombustible) or mixed with fossil combustibles (combustible oil, coal, etc.) for the generation of electric energy or heat.

    摘要翻译: 一种从固体城市废物生产生物油的方法,包括以下步骤:a)使所述固体城市废物进行液化,得到包括由生物油,固相和水相组成的油相的混合物; b)使在液化步骤a)中获得的水相发酵,获得发酵生物质; c)将发酵步骤b)中获得的发酵生物质送入液化步骤a)。 由此获得的生物油(或生物粗品)可有利地用于生产生物燃料,其可以原样使用或与其它机动车辆燃料混合。 或者,该生物油(或生物粗品)可以原样使用(生物燃烧)或与化石可燃物(可燃油,煤等)混合以产生电能或热量。

    PROCESS FOR THE REMOVAL OF FILTERCAKES IN OIL WELLS
    7.
    发明申请
    PROCESS FOR THE REMOVAL OF FILTERCAKES IN OIL WELLS 审中-公开
    在油井中除去过滤器的方法

    公开(公告)号:US20100210483A1

    公开(公告)日:2010-08-19

    申请号:US12063142

    申请日:2006-07-28

    IPC分类号: C09K8/035

    CPC分类号: C09K8/62 C09K8/52 C09K8/68

    摘要: Process for the solubilization of polymeric material deposited on a porous medium, which comprises putting said polymeric material in contact with an aqueous composition comprising: (a) a catalyst selected from: (a1) a complex having general formula (I), Fe++(L)n(Y)s, L being a binder selected from those having general formula (II), wherein X═CH, N, (a2) a hydrosoluble cobalt2+ salt, preferably cobalt acetate; (b) an oxidizing agent selected from: (b1) hydrogen peroxide, (b2) MHSO5, wherein M is an alkaline metal, preferably potassium; with the constraint that the catalyst (a1) can only be used in the presence of the oxidizing agent (b1) and the catalyst (a2) can only be used in the presence of the catalyst (b2).

    摘要翻译: 沉积在多孔介质上的聚合材料的溶解方法,其包括将所述聚合物材料与含水组合物接触,所述组合物包含:(a)选自以下的催化剂:(a1)具有通式(I)的络合物,Fe ++(L )n(Y)s,L是选自具有通式(II)的那些的粘合剂,其中X = CH,N,(a2)水溶性钴2+盐,优选乙酸钴; (b)选自以下的氧化剂:(b1)过氧化氢,(b2)MHSO5,其中M是碱金属,优选钾; 催化剂(a1)只能在氧化剂(b1)的存在下使用,催化剂(a2)只能在催化剂(b2)的存在下使用。