FR2362818A1 - Procede de decarbalkoxylation de carboxylates - Google Patents
Procede de decarbalkoxylation de carboxylatesInfo
- Publication number
- FR2362818A1 FR2362818A1 FR7725961A FR7725961A FR2362818A1 FR 2362818 A1 FR2362818 A1 FR 2362818A1 FR 7725961 A FR7725961 A FR 7725961A FR 7725961 A FR7725961 A FR 7725961A FR 2362818 A1 FR2362818 A1 FR 2362818A1
- Authority
- FR
- France
- Prior art keywords
- decarbalkoxylation
- carboxylates
- group
- ester group
- esters
- 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
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
- C07C45/673—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by change of size of the carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
- C07C45/673—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by change of size of the carbon skeleton
- C07C45/676—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by change of size of the carbon skeleton by elimination of carboxyl groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Procédé de décarbalkoxylation de carboxylates. Des esters d'acides carboxyliques qui portent en position alpha par rapport au groupe ester un autre groupe ester, un groupe céto ou un groupe CN sont décarbalkoxylés par chauffage à 100-250 degrés C en présence de solvants phosphorés de même qu'en présence de sels. Certains esters décarbalkozylés par le procédé de l'invention sont des produits intermédiaires dans la préparation d'insecticides de grande activité.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19762638453 DE2638453A1 (de) | 1976-08-26 | 1976-08-26 | Verfahren zur decarbalkoxylierung von carbonsaeureestern |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2362818A1 true FR2362818A1 (fr) | 1978-03-24 |
FR2362818B1 FR2362818B1 (fr) | 1984-04-06 |
Family
ID=5986444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7725961A Granted FR2362818A1 (fr) | 1976-08-26 | 1977-08-25 | Procede de decarbalkoxylation de carboxylates |
Country Status (12)
Country | Link |
---|---|
US (1) | US4276225A (fr) |
JP (1) | JPS5328110A (fr) |
AT (1) | AT353243B (fr) |
BE (1) | BE858138A (fr) |
BR (1) | BR7705653A (fr) |
CH (1) | CH628015A5 (fr) |
DE (1) | DE2638453A1 (fr) |
DK (1) | DK377677A (fr) |
FR (1) | FR2362818A1 (fr) |
GB (1) | GB1539834A (fr) |
IL (1) | IL52802A (fr) |
NL (1) | NL7709287A (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4567265A (en) * | 1984-01-16 | 1986-01-28 | Loyola University Of Chicago | Cyclopropanoid cyanoesters and method of making same |
JPH0327364U (fr) * | 1989-07-26 | 1991-03-19 | ||
DK0623575T3 (da) * | 1993-04-27 | 1999-07-26 | Solvay Fluor & Derivate | Fremgangsmåde til fremstilling af ketoner |
DE4407494A1 (de) * | 1994-03-07 | 1995-09-14 | Basf Ag | Verfahren zur katalytischen Abspaltung von Carbonsäureester- und Acylgruppen aus organischen Verbindungen |
CN1321963C (zh) * | 2004-12-01 | 2007-06-20 | 大连绿源药业有限责任公司 | 制备3,3-二甲基-2-戊酮的方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2663737A (en) * | 1951-08-07 | 1953-12-22 | Du Pont | Substituted phosphacyclopentene oxides and process of preparing them |
US2663739A (en) * | 1951-08-07 | 1953-12-22 | Du Pont | Substituted phosphacyclopentane oxides and process of preparing them |
US3816524A (en) * | 1972-08-31 | 1974-06-11 | Dow Chemical Co | Extraction of carboxylic acids from dilute aqueous solutions |
-
1976
- 1976-08-26 DE DE19762638453 patent/DE2638453A1/de not_active Withdrawn
-
1977
- 1977-08-08 US US05/822,967 patent/US4276225A/en not_active Expired - Lifetime
- 1977-08-23 IL IL52802A patent/IL52802A/xx unknown
- 1977-08-23 CH CH1032377A patent/CH628015A5/de not_active IP Right Cessation
- 1977-08-23 GB GB35291/77A patent/GB1539834A/en not_active Expired
- 1977-08-23 NL NL7709287A patent/NL7709287A/xx not_active Application Discontinuation
- 1977-08-25 DK DK377677A patent/DK377677A/da not_active Application Discontinuation
- 1977-08-25 JP JP10117277A patent/JPS5328110A/ja active Pending
- 1977-08-25 FR FR7725961A patent/FR2362818A1/fr active Granted
- 1977-08-25 BR BR7705653A patent/BR7705653A/pt unknown
- 1977-08-26 AT AT619077A patent/AT353243B/de not_active IP Right Cessation
- 1977-08-26 BE BE180451A patent/BE858138A/fr not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATA619077A (de) | 1979-04-15 |
US4276225A (en) | 1981-06-30 |
DE2638453A1 (de) | 1978-03-02 |
BR7705653A (pt) | 1978-06-06 |
AT353243B (de) | 1979-11-12 |
IL52802A0 (en) | 1977-10-31 |
CH628015A5 (de) | 1982-02-15 |
DK377677A (da) | 1978-02-27 |
FR2362818B1 (fr) | 1984-04-06 |
NL7709287A (nl) | 1978-02-28 |
IL52802A (en) | 1980-06-30 |
BE858138A (fr) | 1978-02-27 |
JPS5328110A (en) | 1978-03-16 |
GB1539834A (en) | 1979-02-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2395263A1 (fr) | Derives d'acides thiadiazole-1, 2, 3 carboxyliques-5 utilisables comme matieres actives de produits herbicides | |
FR2710638B1 (fr) | Procédé de préparation d'isomères d'acides benzènedicarboxyliques de haute pureté. | |
UA32546C2 (uk) | 1,2-заміщені 1н-імідазо[4,5-с]хінолін-4-аміни, проміжні сполуки для їх синтезу, антивірусна фармацевтична композиція, спосіб лікування інфікованих ссавців, спосіб індукування біосинтезу інтерферону у ссавців, спосіб уповільнення росту бластом | |
ATE233250T1 (de) | Saccharinderivate als proteolytische enzyminhibitoren | |
RO94159A2 (fr) | Procede pour la preparation des derives de pyrazolsulfonamide | |
MX9101414A (es) | Procedimiento para la produccion de anhidridos de acidos carboxilicos. | |
ATE128129T1 (de) | 5(und/oder6) substituierte 2-(2-imidazolin-2- yl)nicotinsäuren, ester und salze, verwendbar als herbizide mittel und zwischenverbindungen für die herstellung dieser nikotinsäuren, ester und salze. | |
BG50163A3 (en) | Method for preparing of acyl derivatives | |
PT87029A (pt) | Procede de preparation d:un dispositif auto-adhesif d:administration d:un principe actif par voie percutanee | |
FR2362818A1 (fr) | Procede de decarbalkoxylation de carboxylates | |
FR2400018A1 (fr) | Nouveaux acides imidazolinylbenzoiques, leurs esters et leurs sels, leur procede de preparation et leur application comme insecticides | |
TNSN97060A1 (fr) | Procede pour preparer des acides cycloalcano - indole - et azaindole- et pyrimido (1,2-a) indole-carboxylique purs d'un point de vue enantiomere, et leurs derives actives | |
FI101222B1 (fi) | Menetelmä terapeuttisesti aktiivisten kinolin-2-yylimetoksifenyylijohdannaisten valmistamiseksi | |
PT91637A (pt) | Procede de preparation d'une matrice auto-adhesive pour l'administration d'un principe actif par voie percutanee contenant un copolymere d'ethylene et d'acetate de vinyle | |
DK166384C (da) | Analogifremgangsmaade til fremstilling af (-)-15-deoxyspergualing og farmaceutisk acceptable syreadditionsssalte heraf samt mellemprodukt | |
OA06792A (fr) | Procédé de préparation de dérivés esters d'acides cyclopropane-carboxylique. | |
DK0518374T3 (da) | Fremgangsmåde til fremstilling af alkyl-3-chloranthranilsyrer | |
FR2443464A1 (fr) | Derives d'acides thiadiazole-1,3,4 carboxyliques-2 et produits fongicides et nematicides qui en contiennent | |
FR2408589A1 (fr) | Nouvelles 13,14-bisdeshydroprostaglandines, leur procede de preparation et leurs applications therapeutiques | |
OA06793A (fr) | Procédé de préparation de dérivés esters d'acides cyclopropane-carboxyliques. | |
FR2592877A1 (fr) | Derives d'ester d'acide imidazol-1-yl-carboxylique, procede pour les preparer et composition fongicide comprenant le derive comme produit actif | |
FR2429781A1 (fr) | Esters d'acides dihalogenevinyl-cyclopropane-thioliques, procede pour leur preparation et leur application dans la lutte anti-parasitaire | |
FI98601B (fi) | Menetelmä glykosyloimattoman t-PA-johdannaisen K1K2P farmaseuttisen valmisteen valmistamiseksi | |
AU6838390A (en) | Alkyl esters of 5-heterocyclic-pyridine-2,3-dicarboxylate acides, 5-heterocyclic 2-(2-imidazoline-2-yl) pyridines, useful as herbicidal agents and methods for the preparation thereof | |
JPS5455596A (en) | Cordycepin derivative and its preparation |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |