FR2396737A1 - Procede d'enlevement des groupes de protection du radical carboxy par traitement d'esters benzyliques avec un acide de lewis et nouveaux produits ainsi obtenus - Google Patents
Procede d'enlevement des groupes de protection du radical carboxy par traitement d'esters benzyliques avec un acide de lewis et nouveaux produits ainsi obtenusInfo
- Publication number
- FR2396737A1 FR2396737A1 FR7720919A FR7720919A FR2396737A1 FR 2396737 A1 FR2396737 A1 FR 2396737A1 FR 7720919 A FR7720919 A FR 7720919A FR 7720919 A FR7720919 A FR 7720919A FR 2396737 A1 FR2396737 A1 FR 2396737A1
- Authority
- FR
- France
- Prior art keywords
- benzyl esters
- lewis acid
- treatment
- new products
- protection groups
- 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.)
- Granted
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 (de) | 1977-06-06 | 1977-06-06 | Verfahren zur herstellung freier carbonsaeuren durch esterspaltung |
NLAANVRAGE7707240,A NL188749C (nl) | 1977-06-06 | 1977-06-29 | Werkwijze voor het splitsen van esters van een desgewenst gesubstitueerde benzylalcohol. |
CH814877A CH637909A5 (en) | 1977-06-06 | 1977-07-01 | Removal of carboxyl-protecting groups |
BE179054A BE856444A (fr) | 1977-06-06 | 1977-07-04 | Elimination de radicaux protegeant la fonction carboxyle |
FR7720919A FR2396737A1 (fr) | 1977-06-06 | 1977-07-07 | Procede d'enlevement des groupes de protection du radical carboxy par traitement d'esters benzyliques avec un acide de lewis et nouveaux produits ainsi obtenus |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772725519 DE2725519A1 (de) | 1977-06-06 | 1977-06-06 | Verfahren zur herstellung freier carbonsaeuren durch esterspaltung |
NLAANVRAGE7707240,A NL188749C (nl) | 1977-06-06 | 1977-06-29 | Werkwijze voor het splitsen van esters van een desgewenst gesubstitueerde benzylalcohol. |
CH814877A CH637909A5 (en) | 1977-06-06 | 1977-07-01 | Removal of carboxyl-protecting groups |
BE179054A BE856444A (fr) | 1977-06-06 | 1977-07-04 | Elimination de radicaux protegeant la fonction carboxyle |
BE856444 | 1977-07-04 | ||
FR7720919A FR2396737A1 (fr) | 1977-06-06 | 1977-07-07 | Procede d'enlevement des groupes de protection du radical carboxy par traitement d'esters benzyliques avec un acide de lewis et nouveaux produits ainsi obtenus |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2396737A1 true FR2396737A1 (fr) | 1979-02-02 |
FR2396737B1 FR2396737B1 (de) | 1980-11-21 |
Family
ID=27543026
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7720919A Granted FR2396737A1 (fr) | 1977-06-06 | 1977-07-07 | Procede d'enlevement des groupes de protection du radical carboxy par traitement d'esters benzyliques avec un acide de lewis et nouveaux produits ainsi obtenus |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE856444A (de) |
CH (1) | CH637909A5 (de) |
DE (1) | DE2725519A1 (de) |
FR (1) | FR2396737A1 (de) |
NL (1) | NL188749C (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993001165A2 (en) * | 1991-07-10 | 1993-01-21 | Merck Sharp & Dohme Limited | Aromatic compounds, compositions containing them and their use in therapy |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5302711A (en) * | 1992-02-18 | 1994-04-12 | Eli Lilly And Company | Ester cleavage process for use with β-lactams |
DE69609636D1 (de) * | 1995-11-06 | 2000-09-07 | Dsm Nv | Verfahren zur de-esterifikation |
ES2128281T1 (es) * | 1995-11-06 | 1999-05-16 | Gist Brocades Bv | Proceso de desesterificacion. |
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/de active Granted
- 1977-06-29 NL NLAANVRAGE7707240,A patent/NL188749C/xx not_active IP Right Cessation
- 1977-07-01 CH CH814877A patent/CH637909A5/de not_active IP Right Cessation
- 1977-07-04 BE BE179054A patent/BE856444A/xx not_active IP Right Cessation
- 1977-07-07 FR FR7720919A patent/FR2396737A1/fr active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993001165A2 (en) * | 1991-07-10 | 1993-01-21 | Merck Sharp & Dohme Limited | Aromatic compounds, compositions containing them and their use in therapy |
WO1993001165A3 (en) * | 1991-07-10 | 1993-04-29 | Merck Sharp & Dohme | Aromatic compounds, compositions containing them and their use in therapy |
US5610183A (en) * | 1991-07-10 | 1997-03-11 | Merck, Sharp & Dohme Ltd. | Phenylglycine derivatives pharmaceutical compositions containing them and their use in therapy |
Also Published As
Publication number | Publication date |
---|---|
NL188749B (nl) | 1992-04-16 |
NL7707240A (nl) | 1979-01-03 |
DE2725519A1 (de) | 1978-12-21 |
CH637909A5 (en) | 1983-08-31 |
BE856444A (fr) | 1977-10-31 |
DE2725519C2 (de) | 1989-11-09 |
FR2396737B1 (de) | 1980-11-21 |
NL188749C (nl) | 1992-09-16 |
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