PROCESS FOR PRODUCING CARBOXYLIC ACID ESTER
    2.
    发明申请
    PROCESS FOR PRODUCING CARBOXYLIC ACID ESTER 审中-公开
    生产羧酸酯的方法

    公开(公告)号:WO2012026617A1

    公开(公告)日:2012-03-01

    申请号:PCT/JP2011/069858

    申请日:2011-08-25

    发明人: HAGIYA, Koji

    摘要: The present invention relates to a process for producing a carboxylic acid ester, comprising a step of oxidizing an aldehyde by mixing an alcohol, carbon dioxide, the aldehyde and at least one compound selected from the group consisting of compounds represented by the formulae (2-1) and (2-2): wherein R 2 represents an alkyl group optionally having a substituent or the like; R 3 and R 4 each independently represents an alkyl group optionally having a substituent or the like or R 3 and R 4 are linked together to form a divalent hydrocarbon group optionally having a substituent or the like; Y represents a group of -S- or a group of -N(R 5 )-, wherein R 5 represents an alkyl group optionally having a substituent or the like, or R 5 is linked to R 4 to form a divalent hydrocarbon group optionally having a substituent; and R 8 represents an alkyl group.

    摘要翻译: 本发明涉及一种制备羧酸酯的方法,包括通过将醇,二氧化碳,醛和至少一种选自由式(2- 1)和(2-2):其中R 2表示任选具有取代基的烷基等; R 3和R 4各自独立地表示任选具有取代基等的烷基或者R 3和R 4连接在一起形成任选具有取代基的二价烃基等; Y表示-S-或-N(R5) - 基的基团,其中R5表示任选具有取代基的烷基等,或R5与R4连接形成任选具有取代基的二价烃基; 并且R 8表示烷基。

    PREPARATION OF AN ALDOL USING A BASE-MODIFIED CLAY CATALYST
    3.
    发明申请
    PREPARATION OF AN ALDOL USING A BASE-MODIFIED CLAY CATALYST 审中-公开
    使用碱改性粘土催化剂制备ALD

    公开(公告)号:WO00000456A1

    公开(公告)日:2000-01-06

    申请号:PCT/US1999/014785

    申请日:1999-06-30

    摘要: The invention is a base-modified clay and an improved process for preparing a beta-hydroxy compound via an aldol condensation reaction using the base-modified clay as a catalyst. The base-modified clay comprises a clay having secluded conjugate base sites and exchangeable interstitial cationic spaces. In the base-modified clay, the interstitial hydroxyl groups have been converted to oxide sites, at least one structural hydroxyl group has been converted to an oxide site. The base-modified clay contains sufficient conjugate base cations to balance the charge of said oxide groups. The process for preparing a beta-hydroxy compound includes reacting a first carbonyl compound having at least one alpha hydrogen with a second carbonyl compound in the presence of a catalytic amount of a base-modified clay as described above. The invention also relates to a process for preparing a 1,3-diol comprising the hydrogenation of a beta-hydroxy compound prepared by the process described above. In yet another embodiment, the invention relates to a process for preparing a ketone or an alcohol comprising the dehydration of the above described beta-hydroxy-containing carbonyl compound followed by hydrogenation to produce the ketone. The alcohol is prepared by further hydrogenation of the ketone.

    摘要翻译: 本发明是碱改性的粘土和通过使用碱改性粘土作为催化剂的醛醇缩合反应制备β-羟基化合物的改进方法。 碱改性粘土包括具有隐蔽共轭碱基位点和可交换的间隙阳离子空间的粘土。 在基础改性的粘土中,间隙羟基已经转化为氧化物位点,至少一个结构羟基已转化为氧化物位点。 碱改性粘土含有足够的共轭碱阳离子以平衡所述氧化物基团的电荷。 制备β-羟基化合物的方法包括如上所述在催化量的碱改性粘土存在下使具有至少一个α氢的第一羰基化合物与第二羰基化合物反应。 本发明还涉及一种制备1,3-二醇的方法,其包括通过上述方法制备的β-羟基化合物的氢化。 在另一个实施方案中,本发明涉及一种制备酮或醇的方法,该方法包括将上述含有β-羟基的羰基化合物脱水,然后氢化制备酮。 通过酮的进一步氢化制备醇。

    PROCESS FOR PREPARING MONOESTERS OF 1,3-DIOLS
    4.
    发明申请
    PROCESS FOR PREPARING MONOESTERS OF 1,3-DIOLS 审中-公开
    制备1,3-二醇单体的方法

    公开(公告)号:WO1997041088A1

    公开(公告)日:1997-11-06

    申请号:PCT/FI1997000263

    申请日:1997-04-29

    发明人: NESTE OY

    IPC分类号: C07C67/44

    摘要: The invention relates to a process for preparing monoesters of 1,3-diols. The invention relates to a process for preparing in particular 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, according to which process isobutyraldehyde is brought into contact with an alkalihydroxide catalyst. The alkali hydroxide catalyst used according to the invention is a dilute solution of lithium hydroxide, in which the concentration of lithium hydroxide is about 1 - 12 % by weight. An aqueous solution containing about 2 - 10 % by weight of sodium hydroxide and about 0.1 - 6 % by weight of lithium hydroxide, is used preferably. This enhances selectivity with respect to 1,3-diols, with an increased conversion of the aldehyde into a monoester and a subsequent decrease in recirculation volumes in the preparation process.

    摘要翻译: 本发明涉及一种制备1,3-二醇单酯的方法。 本发明涉及一种制备特别是2,2,4-三甲基-1,3-戊二醇单异丁酸酯的方法,根据该方法使异丁醛与碱金属氢氧化物催化剂接触。 根据本发明使用的碱金属氢氧化物催化剂是氢氧化锂的稀释溶液,其中氢氧化锂的浓度为约1至12重量%。 优选使用含有约2-10重量%氢氧化钠和约0.1-6重量%氢氧化锂的水溶液。 这提高了对1,3-二醇的选择性,醛的转化率增加到单酯中,随后在制备过程中再循环量减少。

    BASIC CATALYSTS AND PROCESS FOR PRODUCING CARBONYL COMPOUND DERIVATIVES
    7.
    发明申请
    BASIC CATALYSTS AND PROCESS FOR PRODUCING CARBONYL COMPOUND DERIVATIVES 审中-公开
    碱性催化剂和生产碳化合物衍生物的方法

    公开(公告)号:WO99007468A1

    公开(公告)日:1999-02-18

    申请号:PCT/JP1998/003488

    申请日:1998-08-05

    摘要: Basic catalysts are prepared from at least one alkali metal compound selected from the group consisting of alkali metal alkoxides, hydroxides and oxides and an alkaline earth metal oxide in a weight ratio of the alkali metal compound to the alkaline earth metal oxide in the range of 0.005/1 to 1/1, and are used for the reaction of aldehydes to form glycol monoesters. Thus, highly active, efficient basic catalysts usable for the aldol reaction or the like to give intended products with a high selectivity are provided.

    摘要翻译: 碱金属化合物与碱土金属氧化物的重量比范围为0.005以下的碱金属化合物,碱金属化合物,氢氧化物,氧化物和碱土类金属氧化物的碱性催化剂, / 1至1/1,并用于醛的反应形成二醇单酯。 因此,提供了可用于醛醇缩合反应等的高活性,有效的碱性催化剂以高选择性给出目标产物。

    SOLUBLE MAGNESIUM CATALYST FOR PREPARATION OF DIHYDROXY ESTERS
    8.
    发明申请
    SOLUBLE MAGNESIUM CATALYST FOR PREPARATION OF DIHYDROXY ESTERS 审中-公开
    用于制备二羟基酯的可溶性镁催化剂

    公开(公告)号:WO1997042153A1

    公开(公告)日:1997-11-13

    申请号:PCT/US1997007007

    申请日:1997-04-25

    IPC分类号: C07C67/44

    摘要: A catalyst and process for preparation of dihydroxy esters from specified hydroxy aldehydes is disclosed. In one embodiment, a catalyst liquid is provided which comprises from 10 percent to 60 percent magnesium salt of a specified alkanoic acid or acids, and from 90 percent to 40 percent of a particular alkanoic acid or acids, the molar ratio of alkanoic acid to magnesium salt being from 1.5 to 20.3. The catalyst solution or liquid contacts or is contacted with a specified hydroxy aldehyde under suitable reaction conditions to form the desired dihydroxy ester. In another embodiment, dihydroxy esters are derived from specified hydroxy aldehydes by first forming a magnesium catalyst containing liquid by reacting magnesium or magnesium oxide, under suitable conditions, with a suitable alkanoic acid or acids, the acid or acids being provided in excess in specified molar ratios. The magnesium salt-alkanoic acid liquid produced is then employed as a catalyst liquid to convert the respective hydroxy aldehyde under suitable reaction conditions to form the desired dihydroxy ester.

    摘要翻译: 公开了一种用于由特定羟基醛制备二羟基酯的催化剂和方法。 在一个实施方案中,提供了催化剂液体,其包含10%至60%的特定链烷酸或酸的镁盐和90%至40%的特定链烷酸或酸,链烷酸与镁的摩尔比 盐从1.5到20.3。 催化剂溶液或液体在合适的反应条件下与特定的羟基醛接触或接触以形成所需的二羟基酯。 在另一个实施方案中,二羟基酯衍生自特定的羟基醛,首先通过在合适的条件下使镁或氧化镁与合适的链烷酸或酸反应而形成含有液体的镁催化剂,酸或酸以规定的摩尔数过量提供 比。 然后将所生产的镁盐 - 链烷酸液体用作催化剂液体,以​​在合适的反应条件下转化相应的羟基醛以形成所需的二羟基酯。