GB1225411A - - Google Patents
Info
- Publication number
- GB1225411A GB1225411A GB1225411DA GB1225411A GB 1225411 A GB1225411 A GB 1225411A GB 1225411D A GB1225411D A GB 1225411DA GB 1225411 A GB1225411 A GB 1225411A
- Authority
- GB
- United Kingdom
- Prior art keywords
- prepared
- treating
- imidazo
- hydrogen
- trifluoromethyl
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/45—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by condensation
- C07C45/46—Friedel-Crafts reactions
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/15—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction of organic compounds with carbon dioxide, e.g. Kolbe-Schmitt synthesis
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
- C07C51/23—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of oxygen-containing groups to carboxyl groups
- C07C51/245—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of oxygen-containing groups to carboxyl groups of keto groups or secondary alcohol groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C65/00—Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
- C07C65/32—Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups containing keto groups
- C07C65/34—Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups containing keto groups polycyclic
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
- C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
- C07D487/04—Ortho-condensed systems
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Medicinal Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Veterinary Medicine (AREA)
- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Indole Compounds (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Abstract
1,225,411. 5H - Imidazo [2,1-a] isoindole derivatives. SANDOZ Ltd. 22 March, 1968 [23 March, 1967], No. 13968/68. Heading C2C. Novel 5H-imidazo [2,1-a] isoindole derivatives of the general Formula I where R, R 1 and R 2 , which may be the same or different, each signifies a hydrogen, chlorine, or fluorine atom, or a trifluoromethyl radical, a straight-chain alkyl radical of 1 to 4 carbon atoms or a straight-chain alkoxy radical of 1 to 4 carbon atoms, provided that (1) R, R 1 and R 2 are such that there is never a trifluoromethyl radical on each of two adjacent carbon atoms, and (2) when R or R 2 is a trifluoromethyl radical, R 1 is a hydrogen, chlorine or fluorine atom, R 3 signifies a hydrogen, chlorine or fluorine atom, R 4 and R 5 , which may be the same or different, each signifies a hydrogen, chlorine orfluorineatom, ora trifluoromethylradical, a straight-chain alkyl radical of 1 to 4 carbon atoms or a straight chain alkoxy radical of 1 to 4 carbon atoms, provided that when one of R 4 or R 5 is a trifluoromethyl radical, the other is a hydrogen, chlorine or fluorine atom, or R 4 and R 5 taken together signify -O-CH 2 -O-, and R 6 signifies a hydrogen or fluorine atom with the further provisos that (i) not more than two of R 3 , R 4 , R 5 and R 6 are other than hydrogen, and (ii) not more than three of R, R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are other than hydrogen, and that when R, R 3 , R 4 , R 5 and R 6 all signify a hydrogen atom, (iii) R 1 and R 2 do not both represent chlorine atoms, (iv) R 1 does not represent a chlorine atom when R 2 represents a hydrogen atom, (v) R 2 does not represent a fluorine atom when R 1 is a hydrogen atom, and their acid addition salts are prepared in a process which comprises treating a compound of Formula II in which R to R 6 are as defined above, with lithium aluminium hydride in an inert ether solvent in an inert atmosphere at a temperature not exceeding 45 C. and contacting the reaction product in solution, after decomposition of any remaining lithium aluminium hydride, with air or oxygen, and when an acid addition salt is desired, salifying the resulting compound of Formula I. Compounds I also exist in other forms. 2 - Iodo - 5 - chlorotoluene is prepared by treating 2-methyl-4-chloroaniline in acetic acid with a sodium nitrite and sulphuric acid solution and treating the resultant mixture with a potassium iodide solution in water. 2 - Methyl - 4 - chlorobenzhydrol is prepared by treating 2-iodo-5-chlorotoluene in ether with magnesium shavings in ether and treating the resultant Grignard reagent with benzaldehyde in diethyl ether. The mixture is cooled and then treated with a saturated ammonium chloride solution and then with anhydrous sodium sulphate. 2 - Benzoyl - (halogen) - benzoic acids where halogen is (i) 4,5-dichloro and (ii) 5-chloro are prepared by (i) treating 2-methyl-4,5-dichlorobenzophenone with sodium hydroxide and potassium permanganate; (ii) treating 2- methyl-4-chlorobenzhydrol with the same reagents. 2 - Methyl - 4,5 - dichlorobenzophenone is prepared by treating 3,4-dichlorotoluene with benzoyl chloride and aluminium trichloride. 2 - (3<SP>1</SP> - Trifluoromethyl - benzoyl) - benzoic acid is prepared by treating a Grignard reagent, prepared from magnesium turnings in tetrahydrofuran and m-bromobenzotrifluoride, with phthalic anhydride, toluene and hydrochloric acid. 2,6 - Dichloro - 3 - trifluoromethyl - benzoic acid is prepared by pouring a mixture of n-butyllithium and 2,4-dichlorobenzotrifluoride in ether onto solid carbon dioxide. 2,6 - Dichloro - 3 - trifluoromethyl - benzophenone is prepared by treating 2,6-dichloro-3- trifluoromethylbenzoic acid with thionyl chloride and aluminium trichloride in benzene and pouring the mixture on to an ice and concentrated hydrochloric acid mixture. 2 - Chloro - 3 - trifluoromethyl - 6 - cyano - benzophenone is prepared by treating 2,6-dichloro-3- trifluoromethylbenzophenone with potassium cyanide, cuprous chloride and anhydrous dimethyl formamide and then pouring the cooled solution into ice water. 2 - Benzoyl - 3 - chloro - 4 - trifluoromethylbenzoic acid is prepared by treating 2-chloro-3- trifluoromethyl-6-cyanobenzophenone with potassium hydroxide and then with concentrated hydrochloric acid. 9b(Ar) - 1,2,3,9b - tetrahydro - 5H - imidazo- [2,1-a]isoindol-5-ones where Ar is 31-trifluoromethylphenyl, or 3<SP>1</SP>,5<SP>1</SP>-dichlorophenyl are prepared from the corresponding 2-(halogenbenzoyl) benzoic acid, ethylene diamine, toluene and #-toluene-sulphonic acid. 9b - Phenyl - 7,8 - dichloro - 1,2,3,9b - tetrahydro - 5H - imidazo[2,1-a]isoindol - 5 - one, 9b- (4<SP>1</SP> - chlorophenyl) - 7,8 - dichloro - 1,2,3,9btetrahydro - 5H - imidazo[2,1-a]isoindol - 5 - one, 9b - phenyl - 7 (or 8) - chloro - 1,2,3,9b - tetrahydro - 5H - imidazo[2,1-a]isoindol- 5 - one, 9b - phenyl - (8 or 6) - fluoro - 1,2,3,9b - tetrahydro - 5H - imidazo[2,1-a]ivoindol - 5 - one, 9bphenyl - 9 - chloro - 8 - trifluoromethyl - 1,2,3,9btetrahydro - 5H - imidazo[2,1-a]isoindol- 5 - one, 9b - phenyl - 7,8 - methylenedioxy - 1,2,3,9btetrahydro - 5H - imidazo[2,1-a]isoindol- 5 - one and 9b - phenyl - 7,8 - dimethyl - 1,2,3,9b - tetrahydro - 5H - imidazo[2,1-a]isoindol- 5 - one are prepared similarly. Pharmaceutical compositions having appetite depressant activity and also central nervous system stimulant activity and containing compounds of the general Formula I defined above, are administered orally or parenterally in association with conventional pharmaceutical carriers and/or other adjuvants. The provisos (iii), (iv) and (v) above exclude compounds described and claimed in copending Specifications 1,225,412 and 1,225,413..
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US62529967A | 1967-03-23 | 1967-03-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1225411A true GB1225411A (en) | 1971-03-17 |
Family
ID=24505431
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1225411D Expired GB1225411A (en) | 1967-03-23 | 1968-03-22 |
Country Status (12)
Country | Link |
---|---|
AT (1) | AT299187B (en) |
BE (1) | BE712596A (en) |
DE (2) | DE1770030A1 (en) |
DK (1) | DK136117B (en) |
ES (3) | ES351834A1 (en) |
FI (1) | FI48840C (en) |
FR (1) | FR7623M (en) |
GB (1) | GB1225411A (en) |
MY (1) | MY7300316A (en) |
NL (1) | NL6803799A (en) |
NO (1) | NO130826C (en) |
SE (1) | SE335349B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4200759A (en) * | 1978-07-20 | 1980-04-29 | Delmar Chemicals, Limited | Preparation of imidazo[2,1-a]isoindole compounds |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1770009A1 (en) * | 1968-03-20 | 1972-04-13 | American Home Prod | Pyrimide and imidazolinyl compounds |
CH530980A (en) * | 1969-03-05 | 1972-11-30 | Sandoz Ag | Process for the preparation of imidazo (2,1-a) isoindoles |
DE19720859A1 (en) * | 1997-05-13 | 1998-11-19 | Inst Chemo Biosensorik | Electrical connection arrangement for sensor to measurement device |
-
1968
- 1968-03-18 NL NL6803799A patent/NL6803799A/xx unknown
- 1968-03-21 ES ES351834A patent/ES351834A1/en not_active Expired
- 1968-03-21 BE BE712596D patent/BE712596A/xx not_active IP Right Cessation
- 1968-03-21 AT AT283568A patent/AT299187B/en active
- 1968-03-22 GB GB1225411D patent/GB1225411A/en not_active Expired
- 1968-03-22 DK DK126068AA patent/DK136117B/en not_active IP Right Cessation
- 1968-03-22 DE DE19681770030 patent/DE1770030A1/en active Pending
- 1968-03-22 DE DE19681795758 patent/DE1795758A1/en active Pending
- 1968-03-22 SE SE03840/68A patent/SE335349B/xx unknown
- 1968-03-22 FI FI680807A patent/FI48840C/en active
- 1968-06-18 FR FR155413A patent/FR7623M/fr not_active Expired
- 1968-08-13 ES ES357216A patent/ES357216A2/en not_active Expired
-
1969
- 1969-06-17 ES ES368450A patent/ES368450A2/en not_active Expired
-
1972
- 1972-09-27 NO NO723452A patent/NO130826C/no unknown
-
1973
- 1973-12-30 MY MY316/73A patent/MY7300316A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4200759A (en) * | 1978-07-20 | 1980-04-29 | Delmar Chemicals, Limited | Preparation of imidazo[2,1-a]isoindole compounds |
Also Published As
Publication number | Publication date |
---|---|
MY7300316A (en) | 1973-12-31 |
AT299187B (en) | 1972-06-12 |
NO130826B (en) | 1974-11-11 |
BE712596A (en) | 1968-09-23 |
ES357216A2 (en) | 1971-01-16 |
DE1795758A1 (en) | 1974-10-10 |
SE335349B (en) | 1971-05-24 |
DE1770030A1 (en) | 1971-09-23 |
ES368450A2 (en) | 1971-07-16 |
DK136117C (en) | 1978-01-16 |
FI48840C (en) | 1975-01-10 |
FI48840B (en) | 1974-09-30 |
ES351834A1 (en) | 1969-12-01 |
FR7623M (en) | 1970-01-26 |
DK136117B (en) | 1977-08-15 |
NL6803799A (en) | 1968-09-24 |
NO130826C (en) | 1975-02-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
433D | Application made for revocation (sect. 33/1949) | ||
933B | Application made for revocation ** application refused (sect. 33/1949) | ||
429A | Application made for amendment of specification (sect. 29/1949) | ||
429H | Application (made) for amendment of specification now open to opposition (sect. 29/1949) | ||
429D | Case decided by the comptroller ** specification amended (sect. 29/1949) | ||
SPA | Amended specification published | ||
PCNP | Patent ceased through non-payment of renewal fee |