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公开(公告)号：US4515986A
公开(公告)日：1985-05-07
申请号：US294114
申请日：1981-08-19
Applicant: Wolfgang Bernhagen , Volker Falk , Helmut Springer , Jurgen Weber , Ernst Wiebus , Claus Kniep
Inventor： Wolfgang Bernhagen , Volker Falk , Helmut Springer , Jurgen Weber , Ernst Wiebus , Claus Kniep
IPC: C07C223/02 , C07C85/00 , C07C85/18
CPC classification number: C07C221/00
Abstract: An improved process for preparing 3-dimethylamino-2,2-dimethylpropanal from isobutyraldehyde, dimethylamine and a source of formaldehyde is disclosed wherein the process is carried out at a pH value of 9 to 11.
Abstract translation: 公开了一种由异丁醛，二甲胺和甲醛源制备3-二甲基氨基-2,2-二甲基丙醛的改进方法，其中该方法在pH值为9至11的条件下进行。
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公开(公告)号：US4275242A
公开(公告)日：1981-06-23
申请号：US106314
申请日：1979-12-21
Applicant: Jurgen Weber , Wolfgang Bernhagen , Helmut Springer
Inventor： Jurgen Weber , Wolfgang Bernhagen , Helmut Springer
Abstract: A process for preparing 2-methylenealdehydes by reacting aldehydes with formaldehyde in the presence of enamines is disclosed.
Abstract translation: 公开了一种在烯胺存在下使醛与甲醛反应制备2-甲基醛的方法。
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公开(公告)号：US4270008A
公开(公告)日：1981-05-26
申请号：US83893
申请日：1979-10-11
Applicant: Jurgen Weber , Wolfgang Bernhagen , Helmut Springer
Inventor： Jurgen Weber , Wolfgang Bernhagen , Helmut Springer
IPC: A61K8/33 , A61Q13/00 , C07C41/28 , C07C43/15 , C07C45/00 , C07C45/51 , C07C47/21 , C07C67/00 , C11B9/00
CPC classification number: C11B9/0015 , C07C41/28 , C07C45/513 , C07C45/515 , C07C47/21 , Y02P20/582
Abstract: 2-Propyl-pent-4-en-1-al of the formula ##STR1## and a process for its preparation.
Abstract translation: 2-丙基 - 戊-4-烯-1-al及其制备方法。
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公开(公告)号：US4205013A
公开(公告)日：1980-05-27
申请号：US891380
申请日：1978-03-28
Applicant: Jurgen Weber , Helmut Springer
Inventor： Jurgen Weber , Helmut Springer
CPC classification number: C07C45/50
Abstract: A process for the preparation of 2,3-dimethylpentanal which comprises contacting 3-methyl-2-pentene with carbon monoxide and hydrogen in the presence of a rhodium carbonyl compound as catalyst. Rhodium carbonyl catalysts are those which contain only rhodium and carbon monoxide and in certain cases, also hydrogen. Especially contemplated are non-phosphine containing rhodium carbonyl catalysts.
Abstract translation: 一种制备2,3-二甲基戊醛的方法，其包括在羰基铑化合物作为催化剂存在下使3-甲基-2-戊烯与一氧化碳和氢气接触。 铑羰基催化剂是仅含有铑和一氧化碳的催化剂，在某些情况下也是氢气。 特别考虑的是不含磷化氢的铑羰基催化剂。
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5.发明授权Process for the preparation of esters of 5-alkylpyridine-2,3-dicarboxylic acid 失效制备5-烷基吡啶-2,3-二羧酸的方法
公开(公告)号：US5182400A
公开(公告)日：1993-01-26
申请号：US741603
申请日：1991-08-07
Applicant: Jurgen Weber , Peter Lappe , Helmut Springer
Inventor： Jurgen Weber , Peter Lappe , Helmut Springer
IPC: B01J31/02 , C07B61/00 , C07D213/80 , C07D213/803
CPC classification number: C07D213/80
Abstract: Process for the preparation of 5-alkylpyridine-2,3-dicarboxylic esters by reaction of 2-oxosuccinic esters with 2-alkylacrolein oximes.
Abstract translation: 通过2-氧代琥珀酸酯与2-烷基丙烯醛肟的反应制备5-烷基吡啶-2,3-二羧酸酯的方法。
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Patent Agency Ranking
公开(公告)号：US5064508A
公开(公告)日：1991-11-12
申请号：US574609
申请日：1990-08-28
Applicant: Jurgen Weber , Peter Lappe , Helmut Springer
Inventor： Jurgen Weber , Peter Lappe , Helmut Springer
CPC classification number: C07C45/82 , C07C45/50 , C07C45/85 , Y10S203/06
Abstract: A process for the separation of 2-methylalkanals from a mixture thereof with at least one alpha unbranched aldehyde thereof comprising distillation of said mixture in the presence of formaldehyde and an aldolization catalyst whereby the alpha unbranched aldehydes are converted to alpha alkylacrolein and the 2-methylalkanals are recovered in a high purity.
Abstract translation: 一种从其混合物与至少一种α未分支醛分离2-甲基链烷醇的方法，其包括在甲醛和醛醇化催化剂存在下蒸馏所述混合物，由此将所述α无支链醛转化为α-烷基丙烯醛和2-甲基链烷醛 以高纯度回收。
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公开(公告)号：US4885383A
公开(公告)日：1989-12-05
申请号：US248544
申请日：1988-09-23
Applicant: Jurgen Weber , Helmut Springer , Peter Lappe
Inventor： Jurgen Weber , Helmut Springer , Peter Lappe
IPC: C07B61/00 , B01J27/02 , C07C67/08 , C07C69/003
CPC classification number: C07C67/08 , C07C2101/14
Abstract: A process for the preparation of methyl carboxylates by the reaction of mono or dicarboxylic acids having more than 5 carbon atoms and methanol in the presence of acidic catalysts at temperatures from 100.degree. to 150.degree. C. and below the boiling point of the carboxylates being produced.
Abstract translation: 在酸性催化剂存在下，在100-150℃的温度和低于所生产的羧酸盐的沸点下，通过使具有多于5个碳原子的一元或二元酸与甲醇反应制备甲基羧酸酯的方法 。
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公开(公告)号：US4950800A
公开(公告)日：1990-08-21
申请号：US287470
申请日：1988-12-20
Applicant: Jurgen Weber , Peter Lappe , Helmut Springer
Inventor： Jurgen Weber , Peter Lappe , Helmut Springer
IPC: C07C47/02 , B01J31/02 , C07B61/00 , C07C45/00 , C07C45/50 , C07C45/75 , C07C45/82 , C07C45/85 , C07C67/00
Abstract: A process for the recovery of 2-methylbutanal from mixtures of isomeric aldehydes having 5 carbon atoms wherein the mixture is distilled in the presence of formaldehyde and an aldolization catalyst. The 2-methylbutanal obtained is useful as an intermediate for the preparation of various useful compounds, including the corresponding alcohol, amine, and acid.
Abstract translation: 从具有5个碳原子的异构醛混合物中回收2-甲基丁醛的方法，其中混合物在甲醛和醛醇化催化剂的存在下蒸馏。 获得的2-甲基丁醛可用作制备各种有用化合物的中间体，包括相应的醇，胺和酸。
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公开(公告)号：US4263460A
公开(公告)日：1981-04-21
申请号：US106299
申请日：1979-12-21
Applicant: Jurgen Weber , Helmut Springer
Inventor： Jurgen Weber , Helmut Springer
Abstract: In a process for preparing methyl-nonyl-acetaldehyde from undecanal and formaldehyde or a source of formaldehyde, e.g., a substance which forms formaldehyde, in the presence of catalytic amounts of a secondary amine, the improvement whereinA. the undecanal is used in the form of the reaction mixture obtained by hydroformylation of 1-decene, andB. di-n-butylamine is used as the catalyst,C. the molar ratio of catalyst to undecanal is 0.025 to 0.050 to 1,D. the reaction is carried out at 90.degree. to 100.degree. C., andE. the 2-methylene-undecanal formed is then converted by partial hydrogenation into methyl-nonyl-acetaldehyde.
Abstract translation: 在催化量的仲胺存在下，从十一醛和甲醛或甲醛源（例如形成甲醛的物质）制备甲基壬基乙醛的方法中，其中A.十一烷醛用于 使用通过1-癸烯的加氢甲酰化获得的反应混合物的形式和B.二正丁胺作为催化剂，C.催化剂与十一烷醛的摩尔比为0.025〜0.050〜1，D反应 在90℃至100℃，然后将形成的2-亚甲基 - 十一烷醛通过部分氢化转化成甲基 - 壬基乙醛。
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10.发明授权Mixtures of isomeric pentanoic acids, esters prepared therefrom, and their use as lubricants 失效异构戊酸的混合物，由其制备的酯及其作为润滑剂的用途
公开(公告)号：US5410072A
公开(公告)日：1995-04-25
申请号：US311557
申请日：1994-09-23
Applicant: Helmut Bahrmann , Wolfgang Greb , Georg Dambkes , Peter Heymanns , Heinz Kalbfell , Peter Lappe , Helmut Springer , Eberhard von Mulmann , Jurgen Weber , Ernst Wiebus , Carl D. Frohning , Harald Kappesser
Inventor： Helmut Bahrmann , Wolfgang Greb , Georg Dambkes , Peter Heymanns , Heinz Kalbfell , Peter Lappe , Helmut Springer , Eberhard von Mulmann , Jurgen Weber , Ernst Wiebus , Carl D. Frohning , Harald Kappesser
IPC: B01J31/24 , C07B61/00 , C07C45/50 , C07C51/235 , C07C53/126 , C07C53/128 , C07C69/22 , C07C69/33 , C10M105/32 , C10M105/34 , C10M105/38 , C10M171/00 , C10N40/30 , C10N70/00
CPC classification number: C10M171/008 , C07C45/50 , C07C53/126 , C07C53/128 , C10M105/38 , C10M2207/281 , C10M2207/282 , C10M2207/283 , C10M2207/286 , C10M2211/022 , C10M2211/06 , C10N2240/00 , C10N2240/22 , C10N2240/30 , C10N2240/50 , C10N2240/52 , C10N2240/54 , C10N2240/56 , C10N2240/58 , C10N2240/60 , C10N2240/66
Abstract: Isomeric mixtures of pentanoic acids are prepared by subjecting butene-1/butene-2 mixtures to hydroformylation to form aldehyde mixtures, followed by oxidation of the aldehyde mixtures which have been separated off from the reaction product. The hydroformylation is carried out in a heterogeneous system in the presence of rhodium catalysts which are dissolved in water. The mixture of isomeric 5 carbon monocarboxylic acids produced, when esterified with polyhydric alcohols, yields mixtures of isomeric esters which are useful as lubricants for refrigerant compressors operated with chlorine-free, at least partly fluorinated hydrocarbons as the refrigerant.
Abstract translation: 戊烯的异构混合物是通过使丁烯-1 /丁烯-2混合物进行加氢甲酰化形成醛混合物，然后氧化从反应产物中分离的醛混合物来制备的。 加氢甲酰化在异相体系中在溶解在水中的铑催化剂存在下进行。 当用多元醇酯化时，产生异构体5碳一元羧酸的混合物产生异构酯的混合物，其可用作用于无氯，至少部分氟化的烃作为制冷剂的制冷剂压缩机的润滑剂。
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