Process for preparing vanillylamine hydrochloride
    1.
    发明申请
    Process for preparing vanillylamine hydrochloride 有权
    香草胺盐酸盐的制备方法

    公开(公告)号:US20040225155A1

    公开(公告)日:2004-11-11

    申请号:US10864263

    申请日:2004-06-09

    CPC classification number: C07C217/58

    Abstract: Process for preparing vanillylamine or one of the salts thereof by reacting vanillin with hydroxylamine or the salts thereof in the presence of an organic salt, which may optionally be produced in situ, wherein the reaction is carried out in an inorganic or organic acid as diluent, and subsequently hydrogenating the resulting vanillyloxime with hydrogen in the presence of a suitable catalyst and an organic and/or inorganic acid.

    Abstract translation: 通过香草醛与羟胺或其盐在有机盐存在下反应来制备香兰胺或其盐之一的方法,所述有机盐可以任意地原位制备,其中反应在无机或有机酸中作为稀释剂进行, 随后在合适的催化剂和有机和/或无机酸的存在下用氢氢化所得的钒酸肟。

    Process for preparing N-methyldialkylamines from secondary dialkylamines and formaldehyde
    2.
    发明申请
    Process for preparing N-methyldialkylamines from secondary dialkylamines and formaldehyde 失效
    从仲二烷基胺和甲醛制备N-甲基二烷基胺的方法

    公开(公告)号:US20040204611A1

    公开(公告)日:2004-10-14

    申请号:US10804747

    申请日:2004-03-19

    Abstract: The present invention relates to a process for preparing N-methyldialkyl-amines by reacting secondary dialkylamines with formaldehyde at a temperature of from 100 to 200null C., by using from 1.5 to 3 mol of formaldehyde per mole of secondary dialkylamine and degassing the resulting reaction product, removing the aqueous phase and distilling the organic phase.

    Abstract translation: 本发明涉及通过使仲胺二胺与甲醛在100〜200℃的温度下反应来制备N-甲基二烷基胺的方法,通过使用1.5至3摩尔甲醛/摩尔次级二烷基胺,并将所得 反应产物,除去水相并蒸馏出有机相。

    Asymmetric reductive amination of ketones
    4.
    发明申请
    Asymmetric reductive amination of ketones 审中-公开
    酮的不对称还原胺化

    公开(公告)号:US20040147762A1

    公开(公告)日:2004-07-29

    申请号:US10701081

    申请日:2003-11-05

    Inventor: Xumu Zhang

    CPC classification number: C07C211/27 C07B2200/07 C07C213/00 C07C217/84

    Abstract: Processes for the preparation of compounds having a chiral carbon substituted with an amine are disclosed. The processes include admixing a ketone with an amine in the presence of a catalyst having a chiral phosphine ligand and an acid. The admixture can also contain a reducing additive. The admixture is then exposed to hydrogen to directly and asymmetrically aminate the ketone.

    Abstract translation: 公开了制备具有被胺取代的手性碳的化合物的方法。 所述方法包括在具有手性膦配体和酸的催化剂的存在下将酮与胺混合。 混合物还可以含有还原添加剂。 然后将混合物暴露于氢气以直接和不对称地胺化酮。

    Catalytic splitting of formic acid esters on hydrogenation catalysts
    6.
    发明授权
    Catalytic splitting of formic acid esters on hydrogenation catalysts 失效
    甲酸酯在氢化催化剂上的催化裂解

    公开(公告)号:US4128730A

    公开(公告)日:1978-12-05

    申请号:US759802

    申请日:1977-01-14

    Applicant: Manfred Reich

    Inventor: Manfred Reich

    Abstract: The amount of formic acid ester produced by the Oxo Process is reduced and the amount of alcohol is increased when the reaction product of said process, in contact with a copper/nickel supported catalyst, is subjected to elevated temperatures. Such catalysts are also useful for the conversion, by hydrogenation, of formyl esters to their corresponding alcohols.

    Abstract translation: 当所述方法与铜/镍负载的催化剂接触的反应产物经受高温时,由Oxo工艺生产的甲酸酯的量减少并且醇的量增加。 这样的催化剂也可用于通过氢化甲酰基酯与其相应的醇的转化。

    Purification of materials containing carbonyl contaminants
    7.
    发明授权
    Purification of materials containing carbonyl contaminants 失效
    纯化含有羰基污染物的材料

    公开(公告)号:US4105701A

    公开(公告)日:1978-08-08

    申请号:US572238

    申请日:1975-04-28

    Inventor: Donald R. Larkin

    CPC classification number: C07C29/88 C07C17/38 C07C29/76 C07C67/56

    Abstract: A liquid contaminated with a carbonyl compound, especially an aldehyde, is purified by being contacted with a bed of solid polyvinyl alcohol particles or fibers. The carbonyl compound is adsorbed or chemisorbed onto the solid polyvinyl alcohol surface with resulting reaction in the carbonyl content of the liquid.

    Abstract translation: 被羰基化合物,特别是醛污染的液体通过与固体聚乙烯醇颗粒或纤维床接触来纯化。 羰基化合物被吸附或化学吸附到固体聚乙烯醇表面上,导致液体羰基含量的反应。

    Process for treating aldol-condensation polyol waste liquor
    8.
    发明授权
    Process for treating aldol-condensation polyol waste liquor 失效
    醛醇缩合多元醇废液的处理方法

    公开(公告)号:US4083931A

    公开(公告)日:1978-04-11

    申请号:US716555

    申请日:1976-08-23

    Applicant: Fu-Ming Lee

    Inventor: Fu-Ming Lee

    CPC classification number: C07C29/88

    Abstract: A process for treating and recovering components from aldol-condensation polyol waste liquor containing sodium formate, water, polyol, and organic by-products comprising A. vacuum crystallizing and removing sodium formate; B. introducing methanol and sulfuric acid; C. distilling to remove and recover methyl formate; D. increasing the pH to about 6.5 to 7.0; E. cooling to precipitate Glauber's salt, polyol and organics; and F. adding water to dissolve and separate the Glauber's salt and recover substantially pure polyol and organics.

    Abstract translation: 一种从含有甲酸钠,水,多元醇和有机副产物的醛醇缩合多元醇废液中处理和回收组分的方法,包括A.真空结晶和除去甲酸钠; B.引入甲醇和硫酸; 蒸馏除去并回收甲酸甲酯; D.将pH值提高至约6.5-7.0; E.冷却以沉淀芒硝,多元醇和有机物; 和F.加水以溶解并分离芒硝的盐并回收基本上纯的多元醇和有机物。

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