ES384928A1 - Procedure for the preparation of derivatives of 5-nitrofurilicos. (Machine-translation by Google Translate, not legally binding) - Google Patents
Procedure for the preparation of derivatives of 5-nitrofurilicos. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES384928A1 ES384928A1 ES384928A ES384928A ES384928A1 ES 384928 A1 ES384928 A1 ES 384928A1 ES 384928 A ES384928 A ES 384928A ES 384928 A ES384928 A ES 384928A ES 384928 A1 ES384928 A1 ES 384928A1
- Authority
- ES
- Spain
- Prior art keywords
- carbon atoms
- group containing
- general formula
- translation
- derivatives
- 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
Landscapes
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Saccharide Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Fodder In General (AREA)
Abstract
Procedure for the preparation of 5-nitrofural derivatives of the general formula I **(See formula)** in which R1 signifies an unsubstituted alkyl group, containing 1 to 5 carbon atoms; or a carbalkoxy group containing in the alkyl part of 1 to 5 carbon atoms, and R2 stands for hydrogen; an alkyl group containing from 1 to 5 carbon atoms, which may be unsubstituted or in which one, several or all of the hydrogen atoms may be replaced by chlorine or bromine atoms; or a cycloalkyl group containing on the carbocyclic ring from 5 to 7 carbon atoms; an aralkyl group containing up to 12 carbon atoms; or an alkenyl group containing from 2 to 4 carbon atoms, characterized in that a compound of the general formula II is reacted **(See formula)** in which R1 has the significance indicated above, with a reagent R2-C (OR4) 3, in which R2 has the significance indicated above and R4 means an alkyl group containing 1 to 3 carbon atoms, to obtain an intermediate of the general formula III, **(See formula)** in which R1, R2 and R4 have the aforementioned significance, which is cyclized without isolation to form a compound of the general formula I. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5266369 | 1969-10-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES384928A1 true ES384928A1 (en) | 1973-03-16 |
Family
ID=10464797
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES384927A Expired ES384927A1 (en) | 1969-10-28 | 1970-10-27 | Procedure for the preparation of derivatives of 5-nitrofurilicos. (Machine-translation by Google Translate, not legally binding) |
| ES384929A Expired ES384929A1 (en) | 1969-10-28 | 1970-10-27 | Procedure for the preparation of derivatives of 5-nitrofurilicos. (Machine-translation by Google Translate, not legally binding) |
| ES384928A Expired ES384928A1 (en) | 1969-10-28 | 1970-10-27 | Procedure for the preparation of derivatives of 5-nitrofurilicos. (Machine-translation by Google Translate, not legally binding) |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES384927A Expired ES384927A1 (en) | 1969-10-28 | 1970-10-27 | Procedure for the preparation of derivatives of 5-nitrofurilicos. (Machine-translation by Google Translate, not legally binding) |
| ES384929A Expired ES384929A1 (en) | 1969-10-28 | 1970-10-27 | Procedure for the preparation of derivatives of 5-nitrofurilicos. (Machine-translation by Google Translate, not legally binding) |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS4932552B1 (en) |
| BG (2) | BG17006A3 (en) |
| CA (1) | CA933920A (en) |
| CS (3) | CS174842B2 (en) |
| ES (3) | ES384927A1 (en) |
| MY (1) | MY7600187A (en) |
| PL (3) | PL89878B1 (en) |
| RO (2) | RO61493A (en) |
| SU (2) | SU511861A3 (en) |
| ZA (1) | ZA707303B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1926139A (en) * | 2004-02-27 | 2007-03-07 | 霍夫曼-拉罗奇有限公司 | Fused derivatives of pyrazole |
-
1970
- 1970-10-27 ES ES384927A patent/ES384927A1/en not_active Expired
- 1970-10-27 JP JP45094047A patent/JPS4932552B1/ja active Pending
- 1970-10-27 RO RO69865A patent/RO61493A/ro unknown
- 1970-10-27 BG BG17203A patent/BG17006A3/xx unknown
- 1970-10-27 RO RO69864A patent/RO61143A/ro unknown
- 1970-10-27 ES ES384929A patent/ES384929A1/en not_active Expired
- 1970-10-27 PL PL1970174039A patent/PL89878B1/en unknown
- 1970-10-27 ES ES384928A patent/ES384928A1/en not_active Expired
- 1970-10-27 CS CS4159A patent/CS174842B2/cs unknown
- 1970-10-27 ZA ZA707303A patent/ZA707303B/en unknown
- 1970-10-27 CS CS7252A patent/CS174805B2/cs unknown
- 1970-10-27 SU SU701486632D patent/SU511861A3/en active
- 1970-10-27 PL PL1970174042A patent/PL90004B1/en unknown
- 1970-10-27 SU SU1709430A patent/SU404257A3/ru active
- 1970-10-27 CA CA096649A patent/CA933920A/en not_active Expired
- 1970-10-27 CS CS4160A patent/CS174843B2/cs unknown
- 1970-11-27 PL PL1970144089A patent/PL83015B1/en unknown
-
1971
- 1971-03-31 BG BG17204A patent/BG16742A3/xx unknown
-
1976
- 1976-12-30 MY MY187/76A patent/MY7600187A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES384927A1 (en) | 1973-03-16 |
| SU404257A3 (en) | 1973-10-26 |
| CA933920A (en) | 1973-09-18 |
| RO61143A (en) | 1976-10-15 |
| BG17006A3 (en) | 1973-04-25 |
| MY7600187A (en) | 1976-12-31 |
| BG16742A3 (en) | 1973-02-15 |
| ES384929A1 (en) | 1973-03-16 |
| SU511861A3 (en) | 1976-04-25 |
| PL90004B1 (en) | 1976-12-31 |
| CS174843B2 (en) | 1977-04-29 |
| PL89878B1 (en) | 1976-12-31 |
| PL83015B1 (en) | 1975-12-31 |
| JPS4932552B1 (en) | 1974-08-31 |
| CS174842B2 (en) | 1977-04-29 |
| CS174805B2 (en) | 1977-04-29 |
| RO61493A (en) | 1977-01-15 |
| ZA707303B (en) | 1971-07-28 |
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