公开(公告)号：DE1768667A1

公开(公告)日：1971-11-25

申请号：DE1768667

申请日：1968-06-14

Applicant: BOFORS AB

Inventor： LENNART HAAKANSON CHRISTER ,  MARTIN NILSSON JOHN

IPC: C07C201/10 ,  C07C205/06 ,  C07C79/10

Abstract: 1,208,502. Production of nitro-substituted benzene compounds. BOFORS A.B. 13 June, 1968 [15 June, 1967], No. 28262/68. Heading C2C. A compound of formula wherein each of the substituents X 1 to X 5 is either a hydrogen atom or a nitro group is prepared by heating a benzene compound having a carboxyl group or an alkyl group convertible to a carboxyl group in the position of the nitro group shown in the structural formula and optionally containing one or more nitro groups, with nitric acid under pressure. The examples describe the preparation of o-, m- and p-dinitrobenzenes and nitrobenzene.

公开(公告)号：DE1959930A1

公开(公告)日：1970-06-25

申请号：DE1959930

申请日：1969-11-28

Applicant: MINI OF TECHNOLOGY

Inventor： ANTHONY SALTER DAVID ,  JAMES SIMKINS ROBERT JOHN

IPC: C07C67/00 ,  C07C201/00 ,  C07C201/10 ,  C07C201/16 ,  C07C205/23 ,  C07C205/24 ,  C07C205/25 ,  C07C205/37 ,  C07C207/04 ,  C07C79/00

公开(公告)号：BE658304A

公开(公告)日：1965-04-30

申请号：BE658304D

申请日：1965-01-14

IPC: C07C201/10 ,  C07C201/14 ,  C07C205/02

Abstract: Nitroparaffins are made by reacting an alkyl nitrite, having at least 2 carbon atoms, with nitric acid or an oxide of nitrogen higher than nitric oxide in the vapour phase at a temperature of at least 240 DEG C. The reaction proceeds with splitting of the alkyl nitrite molecule to yield a nitroparaffin containing fewer carbon atoms than the starting material. Nitrogen dioxide is specified as a suitable nitrating agent. Examples relate to the preparation of nitromethane, nitroethane, 2-nitropropane, nitrobutane and nitropentane.

公开(公告)号：EP4305018A2

公开(公告)日：2024-01-17

申请号：EP22712763.6

申请日：2022-03-09

Applicant: Amgen Inc.

Inventor： CAILLE, Sebastien ,  MURRAY, James ,  QUASDORF, Kyle ,  NGUYEN, Hannah ,  SILVA ELIPE, Maria Victoria ,  ERICSON, Ari Elizabeth

IPC: C07C201/10 ,  C07C205/12

公开(公告)号：EP3015451B1

公开(公告)日：2018-01-17

申请号：EP14817123.4

申请日：2014-06-03

Applicant: Kumiai Chemical Industry Co., Ltd.

Inventor： IKUMI, Akiko ,  NAKAMURA, Takayuki

IPC: C07C205/12 ,  C07C205/58 ,  C07B61/00 ,  C07C201/10

CPC classification number: C07C201/10 ,  C07C205/58 ,  C07C205/12

Abstract: The purpose of the present invention is to provide an economically favorable, industrialization-suitable method for manufacturing nitrobenzene compounds of general formula (1). A method for manufacturing nitrobenzene compounds of general formula (1): (in the formula, R 1 represents a halogen atom; R 2 , R 3 , and R 4 represent a hydrogen atom, etc.; and R 5 represents a halogen atom or alkoxy carbonyl group), the method including the following processes: (i) a process for reacting aniline compounds of general formula (2): (in the formula, R 1 , R 2 , R 3 , R 4 , and R 5 are as previously defined.) in the presence of a metal salt of nitrous acid and an acid, and (ii) a process for reacting the product of process (i) in the presence of a metal salt of nitrous acid and a copper compound; and the total amount of water used in process (ii) being 1.2-2.2 L (liters) with respect to one mole of the compound of general formula (2).

公开(公告)号：EP3015451A4

公开(公告)日：2017-03-01

申请号：EP14817123

申请日：2014-06-03

Applicant: IHARA CHEMICAL IND CO

Inventor： IKUMI AKIKO ,  NAKAMURA TAKAYUKI

IPC: C07C205/12 ,  C07B61/00 ,  C07C201/10 ,  C07C205/58

CPC classification number: C07C201/10 ,  C07C205/58 ,  C07C205/12

Abstract: The purpose of the present invention is to provide an economically favorable, industrialization-suitable method for manufacturing nitrobenzene compounds of general formula (1). A method for manufacturing nitrobenzene compounds of general formula (1): (in the formula, R 1 represents a halogen atom; R 2 , R 3 , and R 4 represent a hydrogen atom, etc.; and R 5 represents a halogen atom or alkoxy carbonyl group), the method including the following processes: (i) a process for reacting aniline compounds of general formula (2): (in the formula, R 1 , R 2 , R 3 , R 4 , and R 5 are as previously defined.) in the presence of a metal salt of nitrous acid and an acid, and (ii) a process for reacting the product of process (i) in the presence of a metal salt of nitrous acid and a copper compound; and the total amount of water used in process (ii) being 1.2-2.2 L (liters) with respect to one mole of the compound of general formula (2).

公开(公告)号：EP2702034A4

公开(公告)日：2015-03-25

申请号：EP12777520

申请日：2012-04-27

Applicant: REDDYS LAB LTD DR

Inventor： KATKAM SRINIVAS ,  SAGYAM RAJESWAR REDDY ,  MORTHALA RAGHAVENDAR RAO ,  IRENI BABU ,  VINIGARI KRISHNA ,  RAMDOSS SURESH KUMAR ,  RANGINENI SRINIVASULU ,  TUMMALA ARJUNKUMAR ,  IQBAL JAVED ,  ORUGANTI SRINIVAS ,  KANDAGATLA BHASKAR

IPC: C07C211/00 ,  C07C201/10 ,  C07C201/12 ,  C07C213/02 ,  C07D333/20

CPC classification number: C07C205/45 ,  C07C201/10 ,  C07C201/12 ,  C07C213/00 ,  C07C213/02 ,  C07C213/10 ,  C07C215/28 ,  C07C205/04

公开(公告)号：EP0626366A1

公开(公告)日：1994-11-30

申请号：EP94401124.6

申请日：1994-05-20

Applicant: RHONE-POULENC CHIMIE

Inventor： Metivier, Pascal ,  Bernard, Laurent

IPC: C07C205/22 ,  C07C207/04 ,  C07C205/37 ,  C07C205/26 ,  C07C201/10

CPC classification number: C07C201/00 ,  C07C201/08 ,  C07C205/22 ,  C07C207/04

Abstract: La présente invention a pour objet un procédé de préparation de nitrophénols. Plus particulièrement, l'invention concerne la préparation de p-nitrophénol.
Le procédé de préparation de l'invention qui consiste à préparer le p-nitrophénol par nitrosation du phénol en présence d'acide sulfurique, puis oxydation du p-nitrosophénol par l'acide nitrique est caractérisé par le fait que dans la première étape de nitrosation, la concentration en acide sulfurique est au moins égale à 60 % et dans la deuxième étape, en fin de réaction d'oxydation, la concentration en acide sulfurique est au plus égale à 80 % ce qui permet de précipiter le p-nitrophénol qui est ensuite séparé.

Abstract translation: 本发明的主题是制备硝基酚的方法。 更具体地说，本发明涉及对硝基苯酚的制备。 本发明的制备方法，其特征在于在硫酸存在下通过亚硝化苯酚然后用硝酸氧化对亚硝基苯来制备对硝基苯酚，其特征在于，在第一亚硝化阶段， 硫酸至少等于60％，而在第二阶段，在氧化反应结束时，硫酸的浓度至多等于80％，这使得有可能沉淀出对硝基苯酚，然后将其分离 。

公开(公告)号：EP0346185A1

公开(公告)日：1989-12-13

申请号：EP89401485.1

申请日：1989-05-31

Applicant: W.R. Grace & Co.-Conn.

Inventor： Mari, Roger ,  Quibel, Jacques

IPC: C07C205/02 ,  C07C201/10

CPC classification number: C07C201/06 ,  C07C205/02

Abstract: L'invention concerne la fabrication du nitrométhane.
Selon le procédé on fait réagir un agent nitrant, constitué par un composé oxygéné de l'azote, avec un composé carboné comportant deux atomes de carbone et au moins un atome autre que carbone et hydrogène.
Application à la transformation des produits courants de l'industrie chimique en nitrométhane.

Abstract translation: 本发明涉及硝基甲烷的制造。 根据该方法，由氮的氧化合物组成的硝化剂与含有两个碳原子和除碳和氢之外的至少一个原子的碳化合物反应。 ... 应用于将化学工业的普通产品转化为硝基甲烷。

公开(公告)号：EP4244183A1

公开(公告)日：2023-09-20

申请号：EP21806282.6

申请日：2021-11-11

Applicant: BASF SE

Inventor： KOELLER, Maximilian ,  BUETTNER, Johannes ,  FRITZ, Ruediger ,  MATTERN, Jonas

IPC: C01B17/88 ,  C07C201/06 ,  C07C201/10