Bibenzyl hydroperoxide synthesis
    1.
    发明授权
    Bibenzyl hydroperoxide synthesis 失效
    联苯氢过氧化物合成

    公开(公告)号:US4579978A

    公开(公告)日:1986-04-01

    申请号:US670102

    申请日:1984-11-13

    CPC classification number: C07D301/19 C07C407/00 C07C409/08

    Abstract: Substantially quantitative yields of bibenzyl hydroperoxide and bibenzyl dihydroperoxide can be obtained when oxygen is reacted with bibenzyl (1,2-diphenylethane) in the presence of a minor amount of sodium bicarbonate at a temperature within the range of about 100.degree. to about 160.degree. C. to provide an oxidation product wherein the bibenzyl is substantially selectively converted to the bibenzyl hydroperoxides. The bibenzyl hydroperoxides can be used as raw materials for the production of propylene oxide by reacting the bibenzyl hydroperoxides with propylene.

    Abstract translation: 在少量碳酸氢钠存在下,在约100至约160℃的温度范围内,当与二苄基(1,2-二苯基乙烷)反应时,可以获得过氧化二苄苯基和联苄基二氢过氧化物的基本定量产率 以提供氧化产物,其中联苄基本上选择性地转化为联苯氢过氧化物。 苄基氢过氧化物可以用作通过使苄基氢过氧化物与丙烯反应生产环氧丙烷的原料。

    Production of 2-hydroxyalkyl-1,3-dioxolanes
    3.
    发明授权
    Production of 2-hydroxyalkyl-1,3-dioxolanes 失效
    2-羟基烷基-1,3-二氧戊环的制备

    公开(公告)号:US4554364A

    公开(公告)日:1985-11-19

    申请号:US683547

    申请日:1984-12-19

    CPC classification number: C07D317/20

    Abstract: It has been surprisingly discovered in accordance with the present invention that when 1,3-dioxolane is reacted with formaldehyde in the presence of tert-butyl hydroperoxide and a cobalt initiator, the reaction preferentially involves an addition of the formaldehyde to the 2-methylene group of the 1,3-dioxolane with only minor reaction with the 4-methylene and 5-methylene groups of the 1,3-dioxolane whereby the reaction product that is formed contains significant quantities of 2-hydroxyalkyl-1,3-dioxolanes and only minimal amounts of the undesired methyl formate by-product. 2-Hydroxymethyl-1,3-dioxolane is hydrolyzed with comparative ease to ethylene glycol and the corresponding glycol aldehyde (CHO--CH.sub.2 --OH). The glycol aldehyde in turn can be catalytically hydrogenated to form additional quantities of ethylene glycol.

    Abstract translation: 根据本发明令人惊奇地发现,当1,3-二氧戊环与甲醛在叔丁基过氧化氢和钴引发剂的存在下反应时,反应优先包括向2-亚甲基基团加入甲醛 的1,3-二氧戊环,与1,3-二氧戊环的4-亚甲基和5-亚甲基仅有很小的反应,由此形成的反应产物含有大量的2-羟基烷基-1,3-二氧戊环,仅含有 最少量的不需要的甲酸甲酯副产物。 相对于乙二醇和相应的二醇醛(CHO-CH2-OH),2-羟基甲基-1,3-二氧戊环水解。 二醇醛依次可以被催化氢化以形成额外量的乙二醇。

    Synthesis of substituted dioxolanes by direct oxidation of olefins over
molybdenum 8-hydroxyquinoline
    5.
    发明授权
    Synthesis of substituted dioxolanes by direct oxidation of olefins over molybdenum 8-hydroxyquinoline 失效
    通过在钼上羟基喹啉直接氧化烯烃来合成取代的二氧戊环

    公开(公告)号:US4526992A

    公开(公告)日:1985-07-02

    申请号:US662316

    申请日:1984-10-18

    CPC classification number: C07D215/30 C07D317/12 C07F11/005

    Abstract: The synthesis of substituted dioxolanes by direct oxidation of olefins over a molybdenum 8-hydroxyquinoline catalyst in the presence of water is described. An organic solvent such as chlorobenzene may also be employed. Water is essential to the reaction to make the dioxolanes, otherwise olefin oxides are produced. Hence, 4-methyl-1,3-dioxolane and 2,4-dimethyl-1,3-dioxolane were prepared from propylene oxidation, and three isomers of 2,4,5-trimethyl-1,3-dioxolane were prepared from 2-butene oxidation.

    Abstract translation: 描述了通过在水存在下在钼8-羟基喹啉催化剂上直接氧化烯烃的取代的二氧戊环的合成。 还可以使用有机溶剂如氯苯。 水是制备二氧戊环的反应所必需的,否则产生烯烃氧化物。 因此,由丙烯氧化制备4-甲基-1,3-二氧戊环和2,4-二甲基-1,3-二氧戊环,由2,5-二甲基-1,3-二氧戊环制备2,4,5-三甲基-1,3-二氧戊环的三种异构体 丁烯氧化。

    Molded plastic support frame for a drawer-type dishwasher
    7.
    发明授权
    Molded plastic support frame for a drawer-type dishwasher 失效
    用于抽屉式洗碗机的模制塑料支撑架

    公开(公告)号:US07954913B2

    公开(公告)日:2011-06-07

    申请号:US11822940

    申请日:2007-07-11

    CPC classification number: A47L15/4251 A47L15/0084

    Abstract: A support frame for a drawer-type dishwasher includes a top section and opposing side sections formed from a plurality of support members which define an open lattice work and establish a cavity for a slidable dishwasher drawer. The support frame also includes first and second rail supports that are provided on respective ones of the opposing side sections. The first and second rail supports are designed to support corresponding first and second extensible rails which, in turn, support the wash tub for movement relative to the frame. In addition, the support frame includes lid support elements for a mechanism that provides shifting of a lid member relative to the wash tub.

    Abstract translation: 用于抽屉式洗碗机的支撑框架包括顶部部分和由多个支撑部件形成的相对的侧部部分,所述多个支撑部件限定开放的格栅工作并建立用于可滑动洗碗机抽屉的空腔。 支撑框架还包括设置在相对侧面部分中的相应侧面上的第一和第二轨道支撑件。 第一和第二轨道支撑件被设计成支撑相应的第一和第二可伸展轨道,而这些轨道又支撑洗涤桶以相对于框架移动。 此外,支撑框架包括用于提供盖构件相对于洗涤桶的移位的机构的盖支撑元件。

    One step synthesis of methyl t-butyl ether from t-butanol using
alkylsulfonic acid-modified oxide catalysts
    9.
    发明授权
    One step synthesis of methyl t-butyl ether from t-butanol using alkylsulfonic acid-modified oxide catalysts 失效
    使用烷基磺酸改性氧化物催化剂从叔丁醇一步合成甲基叔丁基醚

    公开(公告)号:US5338890A

    公开(公告)日:1994-08-16

    申请号:US92963

    申请日:1993-07-19

    CPC classification number: C07C41/09

    Abstract: Disclosed is a method wherein t-butanol is reacted with methanol in one step to provide methyl t-butyl ether at a temperature of about 20.degree. C. to 250.degree. C. and a pressure of about atmospheric to about 1000 psig employing a heterogenous catalyst comprising a Group IV oxide having an alkylsulfonic acid covalently bonded thereto, particularly alkylsulfonic acid covalently bonded to silica gel and having the structure: ##STR1## wherein R is an alkyl group having from 1 to 3 carbon atoms and n is an integer in the range of 3 to 10.

    Abstract translation: 公开了一种方法,其中叔丁醇与甲醇在一个步骤中反应以在约20℃至250℃的温度和约大气压至约1000psig的压力下提供甲基叔丁基醚,使用异种催化剂 包括与其共价键合的烷基磺酸的IV族氧化物,特别是与硅胶共价键合的烷基磺酸,具有以下结构:其中R是具有1至3个碳原子的烷基,n是整数范围 为3至10。

    Synthetic lubricant base stocks by co-reaction of olefins and anisole
compounds
    10.
    发明授权
    Synthetic lubricant base stocks by co-reaction of olefins and anisole compounds 失效
    通过烯烃和苯甲醚化合物的共反应合成润滑剂基础油料

    公开(公告)号:US5202040A

    公开(公告)日:1993-04-13

    申请号:US536906

    申请日:1990-06-12

    Abstract: Synthetic lubricant base stocks having an increased viscosity are disclosed. These synthetic lubricant base stocks comprises a mixture of (1) oligomers prepared from a linear olefin having from 10 to 24 carbon atoms; and (2) alkylated anisole having an alkyl group containing from 10 to 24 carbon atoms. These synthetic lubricant base stocks may be prepared by co-reacting a linear olefin having from 10 to 24 carbon atoms and anisole. Optionally, the mixture of oligomers and alkylated anisoles may be hydrogenated, to prepare a mixture of reduced oligomers and alkylated methoxycyclohexanes.

    Abstract translation: 公开了具有增加粘度的合成润滑剂基础油料。 这些合成润滑剂基础油料包含(1)由具有10-24个碳原子的直链烯烃制备的低聚物的混合物; 和(2)具有含有10-24个碳原子的烷基的烷基化苯甲醚。 这些合成润滑剂基础油料可以通过使具有10-24个碳原子的直链烯烃与苯甲醚共反应来制备。 任选地,可以将低聚物和烷基化茴香醚的混合物氢化,以制备还原性低聚物和烷基化甲氧基环己烷的混合物。

Patent Agency Ranking