公开(公告)号：US4705869A

公开(公告)日：1987-11-10

申请号：US762031

申请日：1985-08-02

Applicant: Helmut Nickels ,  Alfred Hackenberger

Inventor： Helmut Nickels ,  Alfred Hackenberger

IPC: C07D307/62

CPC classification number: C07D307/62

Abstract: Fatty acid esters of ascorbic acid are prepared by a process in which a homogeneous mixture of(a) ascorbic acid,(c) concentrated sulfuric acid having a concentration of not less than 96% and(c) a methyl or ethyl ester of a fatty acid of 12 to 18 carbon atomsis reacted at from 20.degree. to 50.degree. C.Using the novel process, the fatty acid esters of ascorbic acid, in particular ascorbyl palmitate, which are very desirable antioxidants are obtained by a procedure which is technically simpler and hence cheaper than the conventional processes, but in equally good yields.

Abstract translation: 抗坏血酸的脂肪酸酯通过以下方法制备，其中（a）抗坏血酸，（c）浓度不低于96％的浓硫酸和（c）脂肪的甲基或乙酯的均匀混合物 12至18个碳原子的酸在20至50℃下反应。使用新方法，通过在技术上更简单的方法获得非常理想的抗氧化剂的抗坏血酸脂肪酸酯，特别是抗坏血酸棕榈酸酯 因此比常规方法便宜，但产量相同。

公开(公告)号：US4927935A

公开(公告)日：1990-05-22

申请号：US268264

申请日：1988-11-07

Applicant: Alfred Hackenberger ,  Manfred Patsch

Inventor： Alfred Hackenberger ,  Manfred Patsch

IPC: C07D215/54 ,  C07D215/56

CPC classification number: C07D215/54

Abstract: A compound of the formula I ##STR1## where A is nitro, amino, halocarbonyl or halosulfonyl, R is hydrogen, halogen, nitro, cyano, C.sub.1 -C.sub.4 -alkanoylamino, hydroxyl, C.sub.1 -C.sub.4 -alkoxy phenoxy which is unsubstituted by methyl or chloro, mercapto, C.sub.1 -C.sub.4 -alkylthio, phenylthio which is unsubstituted or substituted by ethyl, fluoro, or methoxy, carboxyl, C.sub.1 -C.sub.4 -alkoxycarbonyl, phenoxycarbonyl which is unsubstituted or substituted by isopropyl, bromo, or methoxy, carbamoyl, hydroxysulfonyl, C.sub.1 -C.sub.4 -alkylsulfonyl, phenylsulfonyl which is unsubstituted or substituted by ethyl, chloro, or isopropoxy, sulfamoyl or trifluoromethyl or is C.sub.1 -C.sub.4 -alkyl which may be substituted by hydroxyl, C.sub.1 -C.sub.4 -alkoxy or halogen, and X and Y are each, independently of one another, halogen, hydroxysulfonyl, C.sub.1 -C.sub.4 -alkoxy or phenoxy which is unsubstituted or substituted by methyl or chloro, phenoxy, subject to the proviso that at least one of X and Y is halogen.

Abstract translation: 式I化合物（I）其中A是硝基，氨基，卤代羰基或卤代磺酰基，R是氢，卤素，硝基，氰基，C 1 -C 4烷酰基氨基，羟基，C 1 -C 4 - 烷氧基苯氧基，其是未被取代的 未取代或被乙基，氟或甲氧基，羧基，C 1 -C 4烷氧基羰基，未被取代或被异丙基，溴代或甲氧基取代的苯氧基羰基取代的甲基或氯，巯基，C 1 -C 4 - 烷硫基，苯硫基，氨基甲酰基 ，羟基磺酰基，C 1 -C 4 - 烷基磺酰基，未被取代或被乙基，氯或异丙氧基，氨磺酰基或三氟甲基取代的苯基磺酰基，或可被羟基，C 1 -C 4 - 烷氧基或卤素取代的C 1 -C 4 - 烷基和X 并且Y彼此独立地为卤素，羟基磺酰基，未被取代或被甲基或氯取代的苯氧基的苯氧基，条件是X和Y中的至少一个为卤素。

公开(公告)号：US5003049A

公开(公告)日：1991-03-26

申请号：US307621

申请日：1989-02-08

Applicant: Udo Bergmann ,  Alfred Hackenberger ,  Manfred Patsch

Inventor： Udo Bergmann ,  Alfred Hackenberger ,  Manfred Patsch

IPC: C07D403/12 ,  C09B62/02 ,  C09B62/04 ,  C09B62/12 ,  D06P3/66

CPC classification number: C09B62/02

Abstract: The compounds of the general formula (I) ##STR1## where A is a dye radical, where relevant the radicals Y independently of one another are each oxygen, sulfur, R.sup.1 --N or a direct bond, n is 1 or 2, the radicals R.sup.1 independently of one another are each hydrogen or unsubstituted or substituted C.sub.1 -C.sub.4 -alkyl and Z is a bridge member, are very useful for dyeing hydroxyl-containing textile material.

Abstract translation: 通式（I）的化合物其中A是染料基团，相关的基团Y彼此独立地各自为氧，硫，R 1 -N或直接键，n为1或2 ，基团R1彼此独立地各自为氢或未取代的或取代的C 1 -C 4 - 烷基，Z为桥连构件，对于含羟基的纺织材料的染色非常有用。

公开(公告)号：US4506089A

公开(公告)日：1985-03-19

申请号：US586668

申请日：1984-03-06

Applicant: Alfred Hackenberger ,  Manfred Patsch ,  Manfred Gaeng

Inventor： Alfred Hackenberger ,  Manfred Patsch ,  Manfred Gaeng

IPC: C07C201/16 ,  C07C76/06 ,  C07C79/46

CPC classification number: C07C201/16

Abstract: Methyl m-nitrobenzoate is prepared by a process in which an isomer mixture is treated with from 10 to 1000% by weight of water in the presence of from 0.05 to 20% by weight of an emulsifier, the percentages being based on the weight of the isomer mixture,(a) in a first stage at from 55.degree. to 100.degree. C. and a pH from 2 to 8 and then(b) in a second stage at from 10.degree. to 40.degree. C. and a pH of not less than 9.The methyl m-nitrobenzoate obtainable by the process of the invention is a useful starting material for the preparation of dyes and crop protection agents.

Abstract translation: 间硝基苯甲酸甲酯通过一种方法制备，其中异构体混合物在0.05至20重量％的乳化剂存在下，用10至1000重量％的水处理，百分比基于 异构体混合物，（a）在55℃至100℃的第一阶段和pH为2至8的第一阶段中，然后（b）在10至40℃的第二阶段中，并且pH值不低于 可通过本发明方法获得的间硝基苯甲酸甲酯是用于制备染料和作物保护剂的有用起始材料。