NL7707240A - REMOVAL OF CARBOXYL PROTECTIVE GROUPS. - Google Patents
REMOVAL OF CARBOXYL PROTECTIVE GROUPS.Info
- Publication number
- NL7707240A NL7707240A NL7707240A NL7707240A NL7707240A NL 7707240 A NL7707240 A NL 7707240A NL 7707240 A NL7707240 A NL 7707240A NL 7707240 A NL7707240 A NL 7707240A NL 7707240 A NL7707240 A NL 7707240A
- Authority
- NL
- Netherlands
- Prior art keywords
- removal
- protective groups
- carboxyl protective
- carboxyl
- groups
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D505/00—Heterocyclic compounds containing 5-oxa-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula:, e.g. oxacephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/09—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid esters or lactones
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D205/00—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom
- C07D205/02—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings
- C07D205/06—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D205/08—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with one oxygen atom directly attached in position 2, e.g. beta-lactams
- C07D205/085—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with one oxygen atom directly attached in position 2, e.g. beta-lactams with a nitrogen atom directly attached in position 3
-
- 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
- C07D307/58—One oxygen atom, e.g. butenolide
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Cephalosporin Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19772725519 DE2725519A1 (en) | 1977-06-06 | 1977-06-06 | PROCESS FOR PRODUCING FREE CARBONIC ACIDS BY ESTER SPLITTER |
| NLAANVRAGE7707240,A NL188749C (en) | 1977-06-06 | 1977-06-29 | METHOD FOR SPLITTING ESTERS FROM A DESIRED SUBSTITUTED BENZYL ALCOHOL |
| CH814877A CH637909A5 (en) | 1977-06-06 | 1977-07-01 | Removal of carboxyl-protecting groups |
| BE179054A BE856444A (en) | 1977-06-06 | 1977-07-04 | ELIMINATION OF RADICALS PROTECTING THE CARBOXYL FUNCTION |
| FR7720919A FR2396737A1 (en) | 1977-06-06 | 1977-07-07 | PROCESS FOR REMOVING THE PROTECTION GROUPS FROM RADICAL CARBOXY BY TREATMENT OF BENZYL ESTERS WITH LEWIS ACID AND NEW PRODUCTS THUS OBTAINED |
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19772725519 DE2725519A1 (en) | 1977-06-06 | 1977-06-06 | PROCESS FOR PRODUCING FREE CARBONIC ACIDS BY ESTER SPLITTER |
| NLAANVRAGE7707240,A NL188749C (en) | 1977-06-06 | 1977-06-29 | METHOD FOR SPLITTING ESTERS FROM A DESIRED SUBSTITUTED BENZYL ALCOHOL |
| CH814877A CH637909A5 (en) | 1977-06-06 | 1977-07-01 | Removal of carboxyl-protecting groups |
| BE179054A BE856444A (en) | 1977-06-06 | 1977-07-04 | ELIMINATION OF RADICALS PROTECTING THE CARBOXYL FUNCTION |
| BE856444 | 1977-07-04 | ||
| FR7720919A FR2396737A1 (en) | 1977-06-06 | 1977-07-07 | PROCESS FOR REMOVING THE PROTECTION GROUPS FROM RADICAL CARBOXY BY TREATMENT OF BENZYL ESTERS WITH LEWIS ACID AND NEW PRODUCTS THUS OBTAINED |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NL7707240A true NL7707240A (en) | 1979-01-03 |
| NL188749B NL188749B (en) | 1992-04-16 |
| NL188749C NL188749C (en) | 1992-09-16 |
Family
ID=27543026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NLAANVRAGE7707240,A NL188749C (en) | 1977-06-06 | 1977-06-29 | METHOD FOR SPLITTING ESTERS FROM A DESIRED SUBSTITUTED BENZYL ALCOHOL |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE856444A (en) |
| CH (1) | CH637909A5 (en) |
| DE (1) | DE2725519A1 (en) |
| FR (1) | FR2396737A1 (en) |
| NL (1) | NL188749C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69208089T2 (en) * | 1991-07-10 | 1996-08-22 | Merck Sharp & Dohme | AROMATIC COMPOUNDS THESE PHARMACEUTICAL COMPOSITIONS AND THEIR THERAPEUTIC USE |
| US5302711A (en) * | 1992-02-18 | 1994-04-12 | Eli Lilly And Company | Ester cleavage process for use with β-lactams |
| DE69609636D1 (en) * | 1995-11-06 | 2000-09-07 | Dsm Nv | METHOD FOR DE-ESTERIFICATION |
| AU7567596A (en) * | 1995-11-06 | 1997-05-29 | Gist-Brocades B.V. | De-esterification process |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52106891A (en) * | 1976-03-03 | 1977-09-07 | Shionogi & Co Ltd | Removal of carboxyl protecting group |
-
1977
- 1977-06-06 DE DE19772725519 patent/DE2725519A1/en active Granted
- 1977-06-29 NL NLAANVRAGE7707240,A patent/NL188749C/en not_active IP Right Cessation
- 1977-07-01 CH CH814877A patent/CH637909A5/en not_active IP Right Cessation
- 1977-07-04 BE BE179054A patent/BE856444A/en not_active IP Right Cessation
- 1977-07-07 FR FR7720919A patent/FR2396737A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| NL188749B (en) | 1992-04-16 |
| DE2725519C2 (en) | 1989-11-09 |
| NL188749C (en) | 1992-09-16 |
| BE856444A (en) | 1977-10-31 |
| CH637909A5 (en) | 1983-08-31 |
| DE2725519A1 (en) | 1978-12-21 |
| FR2396737B1 (en) | 1980-11-21 |
| FR2396737A1 (en) | 1979-02-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BC | A request for examination has been filed | ||
| A85 | Still pending on 85-01-01 | ||
| V4 | Lapsed because of reaching the maximum lifetime of a patent |
Free format text: 970629 |