GB1438480A - Preparation of alkyl 2,5-dihalo-3-nitrobenzoates and hydrolysis products thereof - Google Patents
Preparation of alkyl 2,5-dihalo-3-nitrobenzoates and hydrolysis products thereofInfo
- Publication number
- GB1438480A GB1438480A GB1198775A GB1198775A GB1438480A GB 1438480 A GB1438480 A GB 1438480A GB 1198775 A GB1198775 A GB 1198775A GB 1198775 A GB1198775 A GB 1198775A GB 1438480 A GB1438480 A GB 1438480A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkyl
- dihalo
- preparation
- hydrolysis
- nitrobenzoates
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
- C07C201/06—Preparation of nitro compounds
- C07C201/08—Preparation of nitro compounds by substitution of hydrogen atoms by nitro groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
- C07C201/06—Preparation of nitro compounds
- C07C201/12—Preparation of nitro compounds by reactions not involving the formation of nitro groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
- C07C205/49—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by carboxyl groups
- C07C205/57—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by carboxyl groups having nitro groups and carboxyl groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1438480 Preparation of alkyl 2,5-dihalo-3- nitrobenzoates and hydrolysis products thereof CHINOIN GYOGYSZER ES VEGYESZETI TERMEKEK GYARA RT 21 March 1975 [22 March 1974] 11987/75 Heading C2C A process for the preparation of an alkyl 2,5-dihalo-3-nitrobenzoate or a hydrolysis product thereof, comprises halogenating an alkyl 3-nitro-5-halosalicylate and, if desired, subjecting the alkyl 2,5-dihalo-3-nitrobenzoate thus obtained to hydrolysis. The nitration of the alkyl 5 halosalicylate to produce the starting material is carried out preferably with concentrated nitric acid in acetic acid medium. The halogenation can be performed using any appropriate halogenating agent preferably in an organic solvent, particularly in dimethyl formamide. The further hydrolysis may be effected preferably with an alkali metal hydroxide in an aqueous alkanol preferably in aqueous ethanol.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HUCI001463 HU168609B (en) | 1974-03-22 | 1974-03-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1438480A true GB1438480A (en) | 1976-06-09 |
Family
ID=10994513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1198775A Expired GB1438480A (en) | 1974-03-22 | 1975-03-21 | Preparation of alkyl 2,5-dihalo-3-nitrobenzoates and hydrolysis products thereof |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS50157331A (en) |
AT (1) | AT342578B (en) |
BG (1) | BG24051A3 (en) |
CS (1) | CS175148B1 (en) |
DD (1) | DD120013A1 (en) |
GB (1) | GB1438480A (en) |
HU (1) | HU168609B (en) |
YU (1) | YU68975A (en) |
-
1974
- 1974-03-22 HU HUCI001463 patent/HU168609B/hu unknown
-
1975
- 1975-03-12 BG BG029240A patent/BG24051A3/en unknown
- 1975-03-17 CS CS177775A patent/CS175148B1/cs unknown
- 1975-03-20 YU YU68975A patent/YU68975A/en unknown
- 1975-03-20 JP JP3304675A patent/JPS50157331A/ja active Pending
- 1975-03-20 DD DD18490775A patent/DD120013A1/xx unknown
- 1975-03-21 GB GB1198775A patent/GB1438480A/en not_active Expired
- 1975-03-21 AT AT217575A patent/AT342578B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DD120013A1 (en) | 1976-05-20 |
JPS50157331A (en) | 1975-12-19 |
BG24051A3 (en) | 1977-12-15 |
ATA217575A (en) | 1977-08-15 |
CS175148B1 (en) | 1977-04-29 |
HU168609B (en) | 1976-06-28 |
AT342578B (en) | 1978-04-10 |
YU68975A (en) | 1982-02-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1230884A (en) | ||
GB1496411A (en) | Preparation of 2,5-dimethyl-3(2h)-furanone | |
GB1438480A (en) | Preparation of alkyl 2,5-dihalo-3-nitrobenzoates and hydrolysis products thereof | |
GB1343118A (en) | Salicylic acid derivatives | |
IT1008711B (en) | PROCEDURE FOR PREPARING M PHENOXYLBENZYL ALCOHOL AND ITS DERIVATIVES | |
GB1428341A (en) | Process for preparing 4,5-diphenyl-oxazol-2-one | |
GB1044956A (en) | Process for the manufacture of polymers of open chain n-vinyl amides | |
GB1259747A (en) | Process for the preparation of aliphatic tertiary amides | |
GB1439062A (en) | Process for preparing alkyl transchrysanthemates and the corres ponding acids | |
ES444508A1 (en) | Process for the preparation of phloroglucinol | |
GB1456101A (en) | Process for dehydrating aqueous solutions of maleic acid to maleic anhydride | |
GB1177317A (en) | Process for Purifying Crude Hydroxyethyl Cellulose | |
ES429276A1 (en) | Alpha-ethynyl benzohydrols | |
NL7509860A (en) | PROCESS FOR THE PREPARATION OF HYDRZINE HYDRATE. | |
GB1480376A (en) | Azo-pyrazolium dyestuffs process for their preparation and their use | |
GB1453405A (en) | Rt preparation of 3-amino-2,5-dichlorobenzoic acid and deriva tives thereof | |
GB1130866A (en) | Process for the preparation of -‡-methyl-phenylalanines | |
GB1170009A (en) | Process for the Reduction of Nitrobenzene-3,4-Dicarboxylic Acid | |
GB1156818A (en) | Method of Producing 4-[2<1>,6<1>,6<1>, Trimethylcyclohexene-1<1>-yl]-2-Methylbutene-2-al-1. | |
ES403128A1 (en) | Preparation and separation of 1,5- and 1,8-dihydroxyanthraquinone | |
GB1235963A (en) | New plicatic acid derivatives and their use | |
ES430902A1 (en) | Process for preparing (1-oxo-2-phenyl, halophenyl or thienyl-2-methyl-6,7-dichloro-5-indanyloxy)acetic acid | |
GB1496821A (en) | Process for the production of an aromatic alcohol | |
ES454292A1 (en) | Method of producing indan derivatives | |
JPS5227706A (en) | Process for preparation of 1,1,1-trihalo -4-methylpentene |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
746 | Register noted 'licences of right' (sect. 46/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |