FR2376117A1 - Perfectionnements aux procedes pour la preparation d'esters d'acides carboxyliques - Google Patents
Perfectionnements aux procedes pour la preparation d'esters d'acides carboxyliquesInfo
- Publication number
- FR2376117A1 FR2376117A1 FR7737697A FR7737697A FR2376117A1 FR 2376117 A1 FR2376117 A1 FR 2376117A1 FR 7737697 A FR7737697 A FR 7737697A FR 7737697 A FR7737697 A FR 7737697A FR 2376117 A1 FR2376117 A1 FR 2376117A1
- Authority
- FR
- France
- Prior art keywords
- preparation
- carboxylic acid
- acid
- carbodiimide
- pyridine
- 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
- C07J—STEROIDS
- C07J41/00—Normal steroids containing one or more nitrogen atoms not belonging to a hetero ring
- C07J41/0033—Normal steroids containing one or more nitrogen atoms not belonging to a hetero ring not covered by C07J41/0005
- C07J41/005—Normal steroids containing one or more nitrogen atoms not belonging to a hetero ring not covered by C07J41/0005 the 17-beta position being substituted by an uninterrupted chain of only two carbon atoms, e.g. pregnane derivatives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Steroid Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Procédé perfectionné permettant de réaliser la synthèse d'un ester en utilisant, comme agent de condensation, un carbodiimide en combinaison avec un catalyseur acide. Procédé pour la préparation d'un ester d'acide carboxylique de haute pureté, avec un rendement amélioré, consistant à faire réagir en solution un acide carboxylique, un composé hydroxyle choisi parmi le groupe constitué par des alcools et des phénols, et un carbodiimide en présence de pyridine ou d'une 3- ou 4-alcoyl(inférieur)pyridine, lequel procédé est caractérisé en ce qu'il comporte le perfectionnement consistant essentiellement à introduire, dans le mélange réactionnel, un acide fort (tel que de l'acide para-toluènesulfonique, en une proportion catalytique). Préparation, avec un excellent rendement, de dérivés estérifiés de substances coûteuses telles que diverses hormones du groupe des stéréoïdes.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB54544/76A GB1565680A (en) | 1976-12-31 | 1976-12-31 | Method for the preparation of carboxylic acid esters |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2376117A1 true FR2376117A1 (fr) | 1978-07-28 |
FR2376117B1 FR2376117B1 (fr) | 1980-08-22 |
Family
ID=10471362
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7737697A Granted FR2376117A1 (fr) | 1976-12-31 | 1977-12-14 | Perfectionnements aux procedes pour la preparation d'esters d'acides carboxyliques |
Country Status (13)
Country | Link |
---|---|
US (2) | US4180504A (fr) |
JP (1) | JPS5384902A (fr) |
BE (1) | BE862453A (fr) |
CA (1) | CA1085820A (fr) |
CH (1) | CH630334A5 (fr) |
DE (1) | DE2755547A1 (fr) |
DK (1) | DK157004C (fr) |
FR (1) | FR2376117A1 (fr) |
GB (1) | GB1565680A (fr) |
IE (1) | IE46290B1 (fr) |
IL (1) | IL53712A (fr) |
NL (1) | NL7714262A (fr) |
SE (1) | SE429232B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0200030A2 (fr) * | 1985-04-20 | 1986-11-05 | Bayer Ag | Procédé de préparation d'esters d'acide (méth)acrylique et leur utilisation |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4261910A (en) * | 1978-08-14 | 1981-04-14 | Kureha Kagaku Kogyo Kabushiki Kaisha | Process for the preparation of Chlorambucil derivatives |
DE3210637A1 (de) * | 1982-03-23 | 1983-09-29 | Stiftung Deutsches Krebsforschungszentrum, 6900 Heidelberg | Steroidester von n-(2-halogenethyl)-n-nitroso-carbamoylaminosaeuren und deren peptiden, sowie verfahren zu deren herstellung |
SE8303031D0 (sv) * | 1983-05-30 | 1983-05-30 | Leo Ab | Improved steroid esters preparation |
SE8305596D0 (sv) * | 1983-10-12 | 1983-10-12 | Leo Ab | A selective acylation method |
US4615835A (en) * | 1983-11-17 | 1986-10-07 | Stiftung Deutsches Krebsforschungs Zentrum | Steroid esters of N-(2-halogenethyl)-N-nitroso-carbamoylamino and acids and peptides therefore, as well as method for preparing them |
JPS61293993A (ja) * | 1985-06-21 | 1986-12-24 | Kureha Chem Ind Co Ltd | 新規な螢光物質,その製造方法及び薬剤 |
CA2136803A1 (fr) * | 1993-12-22 | 1995-06-23 | Kazumi Ogata | Derives de steroides |
WO2017154588A1 (fr) * | 2016-03-10 | 2017-09-14 | Dic株式会社 | Procédé de production de composé présentant un groupe ester |
CN112574038A (zh) * | 2021-01-07 | 2021-03-30 | 北京微量化学研究所 | 一种柠檬酸单酯的选择性合成方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2015709B2 (de) * | 1970-04-02 | 1975-11-27 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Herstellung von Estern |
US4082747A (en) * | 1975-10-01 | 1978-04-04 | Mallinckrodt, Inc. | Chemical process |
-
1976
- 1976-12-31 GB GB54544/76A patent/GB1565680A/en not_active Expired
-
1977
- 1977-12-09 SE SE7714032A patent/SE429232B/xx not_active IP Right Cessation
- 1977-12-13 DE DE19772755547 patent/DE2755547A1/de active Granted
- 1977-12-14 FR FR7737697A patent/FR2376117A1/fr active Granted
- 1977-12-16 CH CH1552277A patent/CH630334A5/de not_active IP Right Cessation
- 1977-12-21 US US05/863,058 patent/US4180504A/en not_active Expired - Lifetime
- 1977-12-21 US US05/863,057 patent/US4181669A/en not_active Expired - Lifetime
- 1977-12-22 NL NL7714262A patent/NL7714262A/xx not_active Application Discontinuation
- 1977-12-28 IL IL53712A patent/IL53712A/xx unknown
- 1977-12-28 JP JP15753677A patent/JPS5384902A/ja active Granted
- 1977-12-29 CA CA294,117A patent/CA1085820A/fr not_active Expired
- 1977-12-29 BE BE183951A patent/BE862453A/fr not_active IP Right Cessation
- 1977-12-30 DK DK587077A patent/DK157004C/da not_active IP Right Cessation
- 1977-12-30 IE IE2662/77A patent/IE46290B1/en unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0200030A2 (fr) * | 1985-04-20 | 1986-11-05 | Bayer Ag | Procédé de préparation d'esters d'acide (méth)acrylique et leur utilisation |
EP0200030A3 (en) * | 1985-04-20 | 1987-01-21 | Bayer Ag | Process for the preparation of (meth)acrylic-acid esters, and their use |
US4748269A (en) * | 1985-04-20 | 1988-05-31 | Bayer Aktiengesellschaft | Process for the preparation of (meth)acrylic acid esters and their use |
Also Published As
Publication number | Publication date |
---|---|
CA1085820A (fr) | 1980-09-16 |
CH630334A5 (de) | 1982-06-15 |
NL7714262A (nl) | 1978-07-04 |
FR2376117B1 (fr) | 1980-08-22 |
IL53712A (en) | 1981-01-30 |
JPS569497B2 (fr) | 1981-03-02 |
IL53712A0 (en) | 1978-03-10 |
BE862453A (fr) | 1978-06-29 |
DK157004C (da) | 1990-04-02 |
SE7714032L (sv) | 1978-07-02 |
SE429232B (sv) | 1983-08-22 |
DE2755547A1 (de) | 1978-07-13 |
IE46290B1 (en) | 1983-04-20 |
DK157004B (da) | 1989-10-30 |
JPS5384902A (en) | 1978-07-26 |
IE46290L (en) | 1978-06-30 |
DE2755547C2 (fr) | 1987-06-11 |
DK587077A (da) | 1978-07-01 |
US4180504A (en) | 1979-12-25 |
US4181669A (en) | 1980-01-01 |
GB1565680A (en) | 1980-04-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |