GB1127928A - 3-phenyl-4-halopyrrole derivatives and process for the preparation thereof - Google Patents
3-phenyl-4-halopyrrole derivatives and process for the preparation thereofInfo
- Publication number
- GB1127928A GB1127928A GB4162465A GB4162465A GB1127928A GB 1127928 A GB1127928 A GB 1127928A GB 4162465 A GB4162465 A GB 4162465A GB 4162465 A GB4162465 A GB 4162465A GB 1127928 A GB1127928 A GB 1127928A
- Authority
- GB
- United Kingdom
- Prior art keywords
- halogen
- tri
- halomethyl
- halogenation
- pyrroles
- 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
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/30—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members
- C07D207/34—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyrrole Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
Abstract
1,127,928. Pyrroles. FUJISAWA PHARMACEUTICAL CO. Ltd. 30 Sept., 1965 [7 Dec., 1964 (2)], No. 41624/65. Heading C2C. Novel compounds of the formula (wherein X is H, halogen, NO 2 or C 1-6 alkoxy; Y is halogen, NO 2 or C 1-6 alkoxy; Z is halogen; and R<SP>1</SP> and R<SP>2</SP> are CH 3 , COOR, R being C 1-6 alkyl or aralkyl, or mono-, di- or tri-halomethyl, but one cannot be CH 3 when the other is mono-, di- or tri-halomethyl) are prepared by halogenation of the corresponding 4 - unsubstituted or 4 - COOH substituted pyrroles and/or by halogenation of the 2- and 5-methyl groups in the appropriate pyrroles. If the 4-position in the starting materials is unsubstituted or COOH substituted, halogenation occurs first at this position, (COOH being replaced by halogen) and then it occurs at 2- and 5-methyl groups if present, forming mono-, di- or tri-halomethyl groups. Examples are given, and methods for preparing the starting materials are also referred to.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6874064 | 1964-12-07 | ||
JP1773265 | 1965-03-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1127928A true GB1127928A (en) | 1968-09-18 |
Family
ID=26354292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4162465A Expired GB1127928A (en) | 1964-12-07 | 1965-09-30 | 3-phenyl-4-halopyrrole derivatives and process for the preparation thereof |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH462168A (en) |
GB (1) | GB1127928A (en) |
-
1965
- 1965-09-30 CH CH1349565A patent/CH462168A/en unknown
- 1965-09-30 GB GB4162465A patent/GB1127928A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH462168A (en) | 1968-09-15 |
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