CH542196A - Procédé de préparation de 3-isocyanato-2,5-dioxotétrahydrofuranne - Google Patents
Procédé de préparation de 3-isocyanato-2,5-dioxotétrahydrofuranneInfo
- Publication number
- CH542196A CH542196A CH1815671A CH1815671A CH542196A CH 542196 A CH542196 A CH 542196A CH 1815671 A CH1815671 A CH 1815671A CH 1815671 A CH1815671 A CH 1815671A CH 542196 A CH542196 A CH 542196A
- Authority
- CH
- Switzerland
- Prior art keywords
- dioxotetrahydrofuran
- isocyanato
- preparing
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D307/56—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three 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
- C07D307/66—Nitrogen atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP45111492A JPS4824382B1 (enExample) | 1970-12-14 | 1970-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH542196A true CH542196A (fr) | 1973-09-30 |
Family
ID=14562628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1815671A CH542196A (fr) | 1970-12-14 | 1971-12-13 | Procédé de préparation de 3-isocyanato-2,5-dioxotétrahydrofuranne |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3836545A (enExample) |
| JP (1) | JPS4824382B1 (enExample) |
| CH (1) | CH542196A (enExample) |
| DE (1) | DE2161822A1 (enExample) |
| FR (1) | FR2118619A5 (enExample) |
| GB (1) | GB1331726A (enExample) |
| IE (1) | IE35882B1 (enExample) |
-
1970
- 1970-12-14 JP JP45111492A patent/JPS4824382B1/ja active Pending
-
1971
- 1971-12-09 IE IE1558/71A patent/IE35882B1/xx unknown
- 1971-12-13 US US00207104A patent/US3836545A/en not_active Expired - Lifetime
- 1971-12-13 CH CH1815671A patent/CH542196A/fr not_active IP Right Cessation
- 1971-12-13 DE DE19712161822 patent/DE2161822A1/de active Pending
- 1971-12-14 GB GB5812271A patent/GB1331726A/en not_active Expired
- 1971-12-14 FR FR7144939A patent/FR2118619A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IE35882L (en) | 1972-06-14 |
| JPS4824382B1 (enExample) | 1973-07-20 |
| US3836545A (en) | 1974-09-17 |
| IE35882B1 (en) | 1976-06-23 |
| GB1331726A (en) | 1973-09-26 |
| FR2118619A5 (enExample) | 1972-07-28 |
| DE2161822A1 (de) | 1972-10-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |