BE856444A - ELIMINATION OF RADICALS PROTECTING THE CARBOXYL FUNCTION - Google Patents

ELIMINATION OF RADICALS PROTECTING THE CARBOXYL FUNCTION

Info

Publication number
BE856444A
BE856444A BE179054A BE179054A BE856444A BE 856444 A BE856444 A BE 856444A BE 179054 A BE179054 A BE 179054A BE 179054 A BE179054 A BE 179054A BE 856444 A BE856444 A BE 856444A
Authority
BE
Belgium
Prior art keywords
elimination
carboxyl function
radicals protecting
radicals
protecting
Prior art date
Application number
BE179054A
Other languages
French (fr)
Inventor
T Tsuji
M Yoshioka
Y Sendo
S Hirai
T Maeda
W Nagata
Original Assignee
Shionogi & Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to DE19772725519 priority Critical patent/DE2725519A1/en
Priority to NLAANVRAGE7707240,A priority patent/NL188749C/en
Priority to CH814877A priority patent/CH637909A5/en
Application filed by Shionogi & Co filed Critical Shionogi & Co
Priority to BE179054A priority patent/BE856444A/en
Priority to FR7720919A priority patent/FR2396737A1/en
Publication of BE856444A publication Critical patent/BE856444A/en

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Cephalosporin Compounds (AREA)
BE179054A 1977-06-06 1977-07-04 ELIMINATION OF RADICALS PROTECTING THE CARBOXYL FUNCTION BE856444A (en)

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 (1)

Publication Number Publication Date
BE856444A true BE856444A (en) 1977-10-31

Family

ID=27543026

Family Applications (1)

Application Number Title Priority Date Filing Date
BE179054A BE856444A (en) 1977-06-06 1977-07-04 ELIMINATION OF RADICALS PROTECTING THE CARBOXYL FUNCTION

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06509090A (en) * 1991-07-10 1994-10-13 メルク　シヤープ　エンド　ドーム　リミテツド Aromatic compounds, compositions containing them and their use in therapy
US5302711A (en) * 1992-02-18 1994-04-12 Eli Lilly And Company Ester cleavage process for use with β-lactams
EP0907654B1 (en) * 1995-11-06 2000-08-02 Dsm N.V. De-esterification process
US5922861A (en) * 1995-11-06 1999-07-13 Gist-Brocades B.V. De-esterification process

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52106891A (en) * 1976-03-03 1977-09-07 Shionogi & Co Ltd Removal of carboxyl protecting group

Also Published As

Publication number Publication date
FR2396737A1 (en) 1979-02-02
FR2396737B1 (en) 1980-11-21
CH637909A5 (en) 1983-08-31
NL7707240A (en) 1979-01-03
DE2725519A1 (en) 1978-12-21
NL188749B (en) 1992-04-16
NL188749C (en) 1992-09-16
DE2725519C2 (en) 1989-11-09

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Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: SHIONOGI & CO. LTD

Effective date: 19970704