2.
    发明专利
    未知

    公开(公告)号:DE60308246T2

    公开(公告)日:2007-01-11

    申请号:DE60308246

    申请日:2003-03-06

    Applicant: DAICEL CHEM

    Abstract: A process produces an organic compound by allowing (A) a compound capable of generating a free radical to react with (B) at least one of esters and salts of nitrous acid in the presence of a nitrogen-containing cyclic compound constitutively having a skeleton represented by following Formula (i) in its ring: wherein X is an oxygen atom or an -OR group, and wherein R is a hydrogen atom or a hydroxyl-protecting group. Examples of the nitrogen-containing cyclic compound are cyclic imide compounds having a cyclic imide skeleton represented by following Formula (I): wherein n is 0 or 1; X is an oxygen atom or an -OR group, and wherein R is a hydrogen atom or a hydroxyl-protecting group.A process produces an organic compound by allowing (A) a compound capable of generating a free radical to react with (B) at least one of esters and salts of nitrous acid in the presence of a nitrogen-containing cyclic compound constitutively having a skeleton represented by following Formula (i) in its ring: wherein X is an oxygen atom or an -OR group, and wherein R is a hydrogen atom or a hydroxyl-protecting group. Examples of the nitrogen-containing cyclic compound are cyclic imide compounds having a cyclic imide skeleton represented by following Formula (I): wherein n is 0 or 1; X is an oxygen atom or an -OR group, and wherein R is a hydrogen atom or a hydroxyl-protecting group.

    3.
    发明专利
    未知

    公开(公告)号:DE60109786D1

    公开(公告)日:2005-05-04

    申请号:DE60109786

    申请日:2001-07-18

    Applicant: DAICEL CHEM

    Abstract: A process of the present invention produces a hydroxylactone by subjecting an unsaturated carboxylic acid having a double bond not conjugated to a carboxyl group or an ester thereof to (i) a reaction with hydrogen peroxide in the presence of a metallic compound containing a metallic element selected from W, Mo, V and Mn or (ii) a reaction with a peroxide containing the metallic element to thereby yield a corresponding hydroxylactone having a hydroxyl group combined with one of carbon atoms constituting the double bond and being cyclized at the other carbon atom position. The metallic compound may be one selected from oxides, oxoacids and salts thereof. The unsaturated carboxylic acid includes, for example, beta , gamma -unsaturated carboxylic acids, gamma , delta -unsaturated carboxylic acids, and delta , epsilon -unsaturated carboxylic acids. The process can produce hydroxylactones in high yields at low cost.

    4.
    发明专利
    未知

    公开(公告)号:DE69827583T2

    公开(公告)日:2005-03-31

    申请号:DE69827583

    申请日:1998-05-12

    Applicant: DAICEL CHEM

    Abstract: A compound shown by the following formula: wherein each of R , R , R and R represents a substituent selected from a non-reactive atom, a non-reactive group, a hydroxyl group and an amino group, and at least two members selected from R , R , R and R are a hydroxyl group, a carboxyl group or an amino group; is subjected to an esterification reaction or an amidation reaction with a polymerizable unsaturated compound (e.g., an alcohol, a carboxylic acid, an amine) in the presence of a catalyst comprising an element selected from the Group 3 elements, such as a samarium compound, to obtain a polymerizable adamantane derivative having at least one polymerizable unsaturated group in high yield.

    7.
    发明专利
    未知

    公开(公告)号:ID28884A

    公开(公告)日:2001-07-12

    申请号:ID20010078

    申请日:2000-05-16

    Applicant: DAICEL CHEM

    Abstract: In the invented process for producing a nitro compound, an organic substrate and nitrogen dioxide are reacted in the presence of oxygen or are reacted in a molar ratio of nitrogen dioxide to the organic substrate of less than 1 to yield a corresponding nitro compound. The reaction may be performed in the presence of N-hydroxyphthalimide or other imide compounds. Such organic substrates include (a) aliphatic hydrocarbons, (b) alicyclic hydrocarbons, (c) non-aromatic heterocyclic compounds each having a carbon atom on a ring, which carbon atom is bonded to a hydrogen atom, (d) compounds each having a carbon-hydrogen bond at the adjacent position to an aromatic ring, and (e) compounds each having a carbon-hydrogen bond at the adjacent position to a carbonyl group. This process can efficiently nitrate an organic substrate even under relatively mild conditions.

    PROCEDIMIENTO PARA PRODUCIR ACIDOS DICARBOXILICOS.

    公开(公告)号:ES2310537T3

    公开(公告)日:2009-01-16

    申请号:ES01270515

    申请日:2001-12-07

    Applicant: DAICEL CHEM

    Abstract: Un proceso para producir un ácido dicarboxílico por escisión oxidativa de un cicloalcano correspondiente con oxígeno, en el que la reacción se realiza en presencia de un catalizador que comprende un compuesto de imida y un compuesto metálico, estando representado el compuesto de imida por la siguiente Fórmula (I): (Ver fórmula) en la que R 1 y R 2 son iguales o diferentes y cada uno es un átomo de hidrógeno, un átomo de halógeno, un grupo alquilo, un grupo arilo, un grupo cicloalquilo, un grupo hidroxilo, un grupo alcoxi, un grupo carboxilo, un grupo alcoxicarbonilo o un grupo acilo, donde R 1 y R 2 pueden combinarse para formar un doble enlace, un anillo aromático o un anillo no aromático, X es un átomo de oxígeno o un grupo -OR, donde R es un átomo de hidrógeno o un grupo protector de hidroxilo; y en el que uno o dos del grupos imido cíclico N-sustituidos indicados en la fórmula pueden estar formados adicionalmente sobre el R 1 , R 2 o sobre el doble enlace, un anillo aromático o anillo no aromático formado por R 1 y R 2 en condiciones de una temperatura de reacción de 80ºC o mayor, una concentración del cicloalcano en el sistema del 25 al 95% en peso, y una cantidad del compuesto de imida de 0,000001 a 0,01 moles por mol de cicloalcano.

    10.
    发明专利
    未知

    公开(公告)号:DE60024216D1

    公开(公告)日:2005-12-29

    申请号:DE60024216

    申请日:2000-04-07

    Applicant: DAICEL CHEM

    Abstract: An invented method for the surface modification of a molded plastic treats a molded plastic with an oxygen-atom-containing gas such as oxygen, carbon monoxide, a nitrogen oxide, or a sulfur oxide in the presence of N-hydroxyphthalimide or another imide compound represented by the following formula (1): wherein R and R are each, identical to or different from each other, a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a cycloalkyl group, a hydroxyl group, an alkoxy group, a carboxyl group, an alkoxycarbonyl group, or an acyl group, or R and R may be combined to form a double bond or an aromatic or non-aromatic ring; X is an oxygen atom or a hydroxyl group. An invented method for modifying a polymer treats a polymer with an oxygen-atom-containing gas such as oxygen, carbon monoxide, a nitrogen oxide, or a sulfur oxide in the presence of the imide compound represented by the formula (1).

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