公开(公告)号：US5831119A

公开(公告)日：1998-11-03

申请号：US872053

申请日：1997-06-10

Applicant: Frank Bauer ,  Wolfgang Kleemiss ,  Marcel Feld

Inventor： Frank Bauer ,  Wolfgang Kleemiss ,  Marcel Feld

IPC: C07C227/04 ,  C07C227/40 ,  C07C229/08 ,  C07C229/28 ,  C07C253/30 ,  C07C255/24 ,  C07C229/00

CPC classification number: C07C227/04 ,  C07C253/30

Abstract: A process for the preparation of aminoacetic acids or aminoacetonitriles with a tertiary hydrocarbon radical in the .alpha.-position in which monoamide derivatives of malonic acid are subjected to a Hofmann rearrangement.

Abstract translation: 用于在α-位上用叔烃基制备氨基乙酸或氨基乙腈的方法，其中丙二酸的单酰胺衍生物经历霍夫曼重排。

公开(公告)号：US5717111A

公开(公告)日：1998-02-10

申请号：US618441

申请日：1996-03-08

Applicant: Guenther Koehler ,  Marcel Feld ,  Josef Metz

Inventor： Guenther Koehler ,  Marcel Feld ,  Josef Metz

IPC: C07D201/12 ,  C07D307/33 ,  C07D321/00 ,  C07D323/00 ,  C07D313/00

CPC classification number: C07D323/00 ,  C07D321/00

Abstract: Process for the preparation of macrocyclic compounds by condensation of at least difunctional compounds and subsequent thermal depolymerization in the presence of catalysts, wherein thermal depolarization is carried out in solvent of the formula ##STR1## where R.sup.1 and R.sup.2 represent identical or different aliphatic C.sub.1-6 hydrocarbon radicals with or without functional groups and having number average molecular weights (Mn) from 500 to 3,000, from which the value of n inevitably follows, at a pressure of less than 50 hPa and at a temperature of 200 to 300.degree. C., 5 to 1,000 parts by weight of solvent being used per part by weight of macrocyclic compound.

Abstract translation: 用于通过至少二官能化合物的缩合制备大环化合物的方法和在催化剂存在下随后的热解聚反应的方法，其中热去极化在式Ⅰ的溶剂中进行，其中R 1和R 2表示相同或不同的脂族C1- 6个具有或不具有官能团的烃基，其数值平均分子量（Mn）为500至3,000，n值不可避免地在小于50hPa的压力和200至300℃的温度下。 ，每重量份的大环化合物使用5〜1000重量份的溶剂。

公开(公告)号：US5569781A

公开(公告)日：1996-10-29

申请号：US416989

申请日：1995-04-05

Applicant: Wolfgang Kleemiss ,  Marcel Feld

Inventor： Wolfgang Kleemiss ,  Marcel Feld

IPC: C07C229/46 ,  C07C227/08 ,  C07C227/18 ,  C07C229/48 ,  C07C61/04

CPC classification number: C07C229/48 ,  C07C227/08 ,  C07C227/18 ,  C07C2101/02

Abstract: The present invention relates to a novel process for preparing 1-aminocyclopropanecarboxylic acid hydrochloride (ACC.multidot.HCl) of the formula ##STR1## ACC.multidot.HCl is prepared from a cyclopropane-1,1-dicarboxylic acid diester via an 1-aminocarbonylcyclopropanecarboxylic acid ester intermediate and an alkali metal salt or alkaline earth metal salt of 1-aminocarbonylcyclopropanecarboxylic acid. The process represents a simplification and gives improved product yields.

Abstract translation: 本发明涉及通过1-氨基羰基环丙烷羧酸酯中间体和碱金属由环丙烷-1,1-二羧酸二酯制备式“IMAGE”ACCxHCl的1-氨基环丙烷甲酸盐酸盐（ACCxHCl）的新方法 1-氨基羰基环丙烷羧酸的盐或碱土金属盐。 该过程代表了简化，并提高了产品产量。

公开(公告)号：US4764638A

公开(公告)日：1988-08-16

申请号：US896116

申请日：1986-08-12

Applicant: Marcel Feld

Inventor： Marcel Feld

IPC: C07C51/265 ,  C07C51/255

CPC classification number: C07C51/265

Abstract: Disclosed is a method for the preparation of 2,6-naphthalene dicarboxylic acid from 2-acyl-6-alkyl naphthalene, especially 2-acetyl-6-methylnaphthalene, by oxidation in two steps with oxygen or air. The catalyst in the first oxidation is based on manganese. The catalyst in the second oxidation is based on cobalt with bromine added. The addition of 6-alkyl-2-naphthoic acid to the reaction in the second oxidation, in portions or in a continuous manner, results in very good yields having high purities.

Abstract translation: 公开了一种由2-酰基-6-烷基萘，特别是2-乙酰基-6-甲基萘制备2,6-萘二甲酸的方法，通过两步用氧气或空气进行氧化。 第一次氧化中的催化剂是以锰为基础的。 第二次氧化中的催化剂是以加入溴的钴为基础的。 在第二次氧化中以部分或连续方式向反应中加入6-烷基-2-萘甲酸导致具有高纯度的非常好的收率。

公开(公告)号：US4605757A

公开(公告)日：1986-08-12

申请号：US586110

申请日：1984-03-05

Applicant: Marcel Feld

Inventor： Marcel Feld

IPC: C07C63/70 ,  B01J23/00 ,  B01J23/32 ,  B01J23/74 ,  C07B61/00 ,  C07C51/00 ,  C07C51/265 ,  C07C67/00

CPC classification number: C07C51/265

Abstract: A method for the preparation of halogen benzoic acids by oxidation of the corresponding nuclear halogenated toluenes with oxygen or a gas containing oxygen, in acetic acid, with the addition of soluble cobalt and/or manganese compounds, and of sodium bromide, at elevated temperatures of about 80.degree. to 220.degree. C. and pressures of about 1 to 50 bar.

Abstract translation: 通过在氧气或含氧气体的乙酸中氧化相应的核卤代甲苯，加入可溶性钴和/或锰化合物和溴化钠，在高温下 约80°至220℃，压力约1至50巴。

公开(公告)号：US6143920A

公开(公告)日：2000-11-07

申请号：US179189

申请日：1998-10-27

Applicant: Wolfgang Kleemiss ,  Klaus-Dieter Steffen ,  Marcel Feld

Inventor： Wolfgang Kleemiss ,  Klaus-Dieter Steffen ,  Marcel Feld

IPC: B01J31/02 ,  C07B61/00 ,  C07C67/03 ,  C07C67/30 ,  C07C67/31 ,  C07C69/708 ,  C07C69/66 ,  C07C67/02

CPC classification number: C07C67/03 ,  C07C67/31

Abstract: The invention relates to a process for the preparation of methoxyacetic acid esters in which a chloroacetic acid ester is reacted with an alkali metal methoxide to give the methoxyacetic acid ester.

Abstract translation: 本发明涉及一种制备甲氧基乙酸酯的方法，其中氯乙酸酯与碱金属甲醇盐反应得到甲氧基乙酸酯。

公开(公告)号：US5629455A

公开(公告)日：1997-05-13

申请号：US589952

申请日：1996-01-23

Applicant: Manfred Kaufhold ,  Marcel Feld

Inventor： Manfred Kaufhold ,  Marcel Feld

IPC: C07C45/59 ,  C07C45/67 ,  C07C49/293 ,  C07C49/317 ,  C07C49/792 ,  C07D307/28 ,  C07C45/54

CPC classification number: C07D307/28 ,  C07C45/676

Abstract: The invention relates to a novel process for the simultaneous preparation of cyclopropyl alkyl ketones and 4,5-dihydroalkylfurans from 3-acyltetrahydrofuran-2-ones using a metal salt according to the diagram ##STR1## In the reaction, N-alkyllactams and/or N-acylmorpholines which are high-boiling and only slightly miscible with water are used. By charging the solvent, the metal salt and the 3-acyltetrahydrofuran-2-one in a molar excess with respect to the metal salt, heating the mixture to 160.degree. to 220.degree. C. and metering in further 3-acyl-tetrahydrofuran-2-one, the desired products are obtained in high yields. The metal salt can moreover be recovered in a simple manner by washing with water.

Abstract translation: 本发明涉及一种根据图中使用金属盐从3-酰基四氢呋喃-2-酮同时制备环丙基烷基酮和4,5-二氢烷基呋喃的新方法。在反应中，N - 烷基内酰胺和/或N-酰基吗啉，它们是高沸点且仅与水轻微混溶。 通过将溶剂，金属盐和3-酰基四氢呋喃-2-酮相对于金属盐摩尔过量地加入，将混合物加热至160℃至220℃，并进一步计量3-酰基 - 四氢呋喃-2 - 一种，以高产率获得所需的产物。 此外，金属盐可以通过用水洗涤以简单的方式回收。

公开(公告)号：US4490298A

公开(公告)日：1984-12-25

申请号：US462862

申请日：1983-02-01

Applicant: Marcel Feld

Inventor： Marcel Feld

IPC: C07C55/07 ,  C07C51/00 ,  C07C51/41 ,  C07C51/42 ,  C07C67/00 ,  C07F11/00 ,  C07F15/06

CPC classification number: C07C51/412

Abstract: In a process for the isolation of cobalt and/or manganese in the form of precipitated, easily filtrable cobalt and/or manganese oxalates from acetic acid solutions or extracts, the solutions in question are treated with oxalic acid dimethyl or diethyl ester at temperatures of 50.degree. to 250.degree. C.

Abstract translation: 在从乙酸溶液或提取物中分离沉淀的，易于过滤的钴和/或草酸锰的形式的钴和/或锰的方法中，所讨论的溶液用草酸二甲酯或二乙酯在50℃ DEG至250℃

公开(公告)号：US4490297A

公开(公告)日：1984-12-25

申请号：US451908

申请日：1982-12-21

Applicant: Marcel Feld ,  Gunter Zoche

Inventor： Marcel Feld ,  Gunter Zoche

IPC: B01J31/40 ,  B01J38/00 ,  C01G51/00 ,  C07B61/00 ,  C07C51/00 ,  C07C51/265 ,  C07C51/41 ,  C07C63/26 ,  C07C67/00 ,  C22B3/32 ,  C22B47/00 ,  C07F13/00 ,  C07F5/06

CPC classification number: C22B47/0009 ,  C01G51/003 ,  C07C51/265 ,  C07C51/41 ,  C22B3/0024 ,  Y02P10/214 ,  Y02P10/234

Abstract: A process is provided for the recovery and recycling of spent cobalt and/or manganese catalysts used in the air oxidation of alkyl aromatics in acetic acid. The catalysts are isolated in the form of oxalates of extremely low solubility from the acetic acid mother liquors and the cobalt oxalate dihydrate and/or manganese oxalate dihydrate catalysts are restored by the joint action of hydrogen bromide and acetic anhydride, acetyl bromide, or a mixture thereof, to a form in which they are soluble in acetic acid and can be used, again, as oxidation catalysts.

Abstract translation: 提供了用于在乙酸中烷基芳族化合物的空气氧化中使用的废钴和/或锰催化剂的回收和再循环的方法。 催化剂以乙酸母液的极低溶解度的草酸盐的形式被分离出来，草酸钴二水合物和/或草酸锰二水合物催化剂通过溴化氢和乙酸酐，乙酰溴或混合物的联合作用来恢复 它们可溶于乙酸的形式，可以再次用作氧化催化剂。

公开(公告)号：US4488999A

公开(公告)日：1984-12-18

申请号：US462861

申请日：1983-02-01

Applicant: Marcel Feld

Inventor： Marcel Feld

IPC: C07F13/00 ,  B01J31/40 ,  C07C51/41 ,  C07F5/06

CPC classification number: B01J31/04 ,  B01J31/4015 ,  B01J31/403 ,  C07C51/412 ,  B01J2231/70 ,  Y02P20/584

Abstract: In a process for the recovery of cobalt oxalate and/or manganese oxalate, the solutions or extracts containing cobalt and/or manganese are treated with sodium, potassium or ammonium oxalate. To obtain an easily filtrable cobalt and/or manganese oxalate precipitate, the precipitation is performed at temperatures of 50.degree. to 160.degree. C. with 1 to 2 moles of solid alkali oxalate or ammonium oxalate. When sodium oxalate is used, the water content of the solutions or extracts is from 5 to 90% by weight, when potassium oxalate is used it is from 2 to 15% by weight, and when ammonium oxalate is used it is from 1 to 12% by weight.

Abstract translation: 在草酸钴和/或草酸锰的回收方法中，含有钴和/或锰的溶液或提取物用草酸钠，钾或铵处理。 为了获得易于过滤的钴和/或草酸锰沉淀物，用1至2摩尔固体碱草酸盐或草酸铵在50至160℃的温度下进行沉淀。 当使用草酸钠时，当使用草酸钾时，溶液或提取物的水含量为5-90重量％，当使用草酸铵时为1至12重量％ 重量％。