DE1049861B - Process for the preparation of acetylene grignard compounds - Google Patents
Process for the preparation of acetylene grignard compoundsInfo
- Publication number
- DE1049861B DE1049861B DENDAT1049861D DE1049861DA DE1049861B DE 1049861 B DE1049861 B DE 1049861B DE NDAT1049861 D DENDAT1049861 D DE NDAT1049861D DE 1049861D A DE1049861D A DE 1049861DA DE 1049861 B DE1049861 B DE 1049861B
- Authority
- DE
- Germany
- Prior art keywords
- acetylene
- choh
- magnesium
- compounds
- solvent
- 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.)
- Pending
Links
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 title claims description 8
- 150000001875 compounds Chemical class 0.000 title claims description 7
- 238000000034 method Methods 0.000 title claims description 6
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 6
- -1 acetylene halogen compounds Chemical class 0.000 claims description 6
- 239000011777 magnesium Substances 0.000 claims description 6
- 229910052749 magnesium Inorganic materials 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 3
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 2
- 239000004215 Carbon black (E152) Substances 0.000 claims description 2
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Chemical group BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052794 bromium Chemical group 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 239000000460 chlorine Substances 0.000 claims description 2
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 2
- 125000000524 functional group Chemical group 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- DHXVGJBLRPWPCS-UHFFFAOYSA-N Tetrahydropyran Chemical compound C1CCOCC1 DHXVGJBLRPWPCS-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 description 20
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 11
- 239000002904 solvent Substances 0.000 description 11
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 7
- 150000002681 magnesium compounds Chemical class 0.000 description 5
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 150000002680 magnesium Chemical class 0.000 description 4
- ABIBCFTYJDONHE-UHFFFAOYSA-N [Mg].C#C Chemical group [Mg].C#C ABIBCFTYJDONHE-UHFFFAOYSA-N 0.000 description 3
- 229910052736 halogen Inorganic materials 0.000 description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- BUDQDWGNQVEFAC-UHFFFAOYSA-N Dihydropyran Chemical compound C1COC=CC1 BUDQDWGNQVEFAC-UHFFFAOYSA-N 0.000 description 2
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 125000003158 alcohol group Chemical group 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
- UUFQTNFCRMXOAE-UHFFFAOYSA-N 1-methylmethylene Chemical compound C[CH] UUFQTNFCRMXOAE-UHFFFAOYSA-N 0.000 description 1
- 238000003747 Grignard reaction Methods 0.000 description 1
- MSEMYFLUZCUUCZ-UHFFFAOYSA-N [Mg].[I] Chemical class [Mg].[I] MSEMYFLUZCUUCZ-UHFFFAOYSA-N 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- RDHPKYGYEGBMSE-UHFFFAOYSA-N bromoethane Chemical compound CCBr RDHPKYGYEGBMSE-UHFFFAOYSA-N 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- QUXHCILOWRXCEO-UHFFFAOYSA-M magnesium;butane;chloride Chemical compound [Mg+2].[Cl-].CCC[CH2-] QUXHCILOWRXCEO-UHFFFAOYSA-M 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000002734 organomagnesium group Chemical group 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F3/00—Compounds containing elements of Groups 2 or 12 of the Periodic Table
- C07F3/02—Magnesium compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
Description
Verfahren zur Herstellung von Acetylen-Grignardverbindungen Die übliche Herstellung von Magnesiumacetylenverbindungen beruht auf der Umsetzung einer Grignard-Magnesiumverbindung (im allgemeinen C2 H5 Ilg Br) mit einer die Äthinylgruppierung aufweisenden Verbindung nach folgender Gleichung: A-C=CH -, CZH51IgBr -+. CZHe + A-C-C-1IgBr A bedeutet einen Kohlenwasserstoffrest.Process for the preparation of acetylene grignard compounds The usual Production of magnesium acetylene compounds is based on the conversion of a Grignard magnesium compound (generally C2 H5 Ilg Br) with a compound having the ethynyl group according to the following equation: A-C = CH -, CZH51IgBr - +. Means CZHe + A-C-C-1IgBr A a hydrocarbon residue.
Man hat auch Butylmagnesiumchlorid verwendet. Die Jodmagnesiumderivate geben Nebenreaktionen und werden nur selten angewandt.Butyl magnesium chloride has also been used. The iodine magnesium derivatives cause side reactions and are rarely used.
Es ist bekannt (vgl. beispielsweise Truchet, Annales de Chimie, 16 '1931], S. 309; Raphael, Acetylenic Compounds in Organic Synthesis, Butterworths Scientific Publications, London '1955], S. 58), daß Halogenacetylenderivate der Formel A'- C - C - Hal nicht mit Magnesium unter den üblicherweise zur Herstellung von Grignard-Magnesiumverbindungen angewandten Bedingungen reagieren, außer im Falle, daß Hal Jod bedeutet. Jedoch sind in diesem Falle die Ausbeuten an Acetylenmagnesiumverbindungen sehr gering.It is known (see, for example, Truchet, Annales de Chimie, 16 '1931], p. 309; Raphael, Acetylenic Compounds in Organic Synthesis, Butterworths Scientific Publications, London' 1955], p. 58) that haloacetylene derivatives of the formula A ' - C - C - Hal does not react with magnesium under the conditions normally used for the production of Grignard magnesium compounds, except in the case that Hal means iodine. However, in this case, the yields of acetylene magnesium compounds are very low.
Es wurde nun gefunden, daß Acetylenhalogenverbindungen der allgemeinen Formel R-C C.Y in der X Chlor oder Brom und R einen Kohlenwasserstoffrest, der gegebenenfalls durch funktionelle, unter den Verfahrensbedingungen inerte Gruppen substituiert :ein kann, bedeutet, gleichmäßig mit Magnesium unter Bildung normaler magnesiumorganischer Derivate in guten Ausbeuten reagieren, wenn man als Lösungsmittel Teti-aliyclrofuran, Tetraliydr opyrail oderderen Homologen, wie z. B. 2-llctliyltetraliy-<irofuran, oder einen Diäther von Polvätlivlcnglykol der allgemeinen Formel R' (0 C H., - C H=)"0 R" verwendet, worin R' und R", die gleich oder verschieden sein können, AIkylreste, vorzugsweise Alkylreste mit höchstens -1 Kohlenstoffatomen bedeuten und ra eine ganze Zahl, vorzugsweise 2 oder 3 ist. Besonders geeignet sind z. B. Diäthy1englykoldi,;ithyläther und Diäthylenglykoldibuty#1;ither. Wenn die Reaktion in einem Dimethyläther von Polyäthylenglykol durchgeführt wird, kann das Lösungsvermögen des :lthers unzureichend sein, um das gesamte 1lagnesiumcleriv at in Lösung zu halten. Es bildet sich dann eine Füllung, die dazu neigt, das Magnesium zu bedecken, was die Umsetzung verlangsamt oder sogar zum Stillstand bringen kann. 'Man erhalt bei gutem Rühren und etwas längerem Erhitzen jedoch auch in diesem Falle noch gute Ergebnisse.It has now been found that acetylene halogen compounds of the general Formula R-C C.Y in which X is chlorine or bromine and R is a hydrocarbon radical, which is optionally substituted by functional groups which are inert under the process conditions : a can, means, evenly with magnesium with the formation of normal organomagnesium Derivatives react in good yields if teti-aliyclrofuran is used as the solvent, Tetraliydr opyrail or their homologues, such as e.g. B. 2-llctliyltetraliy- <irofuran, or a diether of polyvinyl glycol of the general formula R '(0 C H., - C H =) "0 R" is used, in which R 'and R ", which can be the same or different, are alkyl radicals, preferably denote alkyl radicals with at most -1 carbon atoms and ra denotes a is an integer, preferably 2 or 3. Particularly suitable are, for. B. Diethy1englykoldi,; ethyl ether and diethylene glycol dibuty # 1; ither. When the reaction takes place in a dimethyl ether of Polyethylene glycol is carried out, the solvent power of the: lthers may be insufficient be to keep all of the 1lagnesium cleriv at in solution. It then forms a filling that tends to cover the magnesium, which slows down its implementation or even bring it to a standstill. 'You get with good stirring and a little longer However, even in this case heating still gives good results.
Die Reaktion wird wie eine gewöhnliche Grignardreaktion durchgeführt: 'Man verwendet eine trockene Apparatur und trockene Reaktionskomponenten und arbeitet unter einem Strom von trockenem Stickstoff. Man verwendet je 1MolAcetylenhalogenderivat 1 Grammatom Magnesium und 250 bis 300 ccm Lösungsmittel.The reaction is carried out like an ordinary Grignard reaction: 'You use a dry apparatus and dry reaction components and work under a stream of dry nitrogen. 1 mol of acetylene halogen derivative is used in each case 1 gram atom of magnesium and 250 to 300 cc of solvent.
Das 'Magnesium wird mit ein wenig Lösungsmittel bedeckt und mit einem Jodkristall oder 1 ccm Athylbromid aktiviert. Dann setzt man 5 ccm der Lösung des Halogenderivats in dem Rest des Lösungsmittels zu.The 'magnesium is covered with a little solvent and with a Iodine crystal or 1 cc of ethyl bromide activated. Then 5 cc of the solution of the Halogen derivative in the remainder of the solvent too.
Nach Einsetzen der Reaktion stellt man die Zugabe der Lösung des Halogenderivats so ein, daß die Temperatur etwa SO°C beträgt.After the reaction has started, the addition of the solution of the halogen derivative is stopped so that the temperature is around 50 ° F.
Nach der Zugabe erhitzt man 1 bis 2 Stunden auf etwa 80°C. Das gesamte lIagnesitim verschwindet, und es wird eine klareLösung desMagnesiumacetylenderivats erhalten.After the addition, the mixture is heated to about 80 ° C. for 1 to 2 hours. The entire lIagnesitim disappears and it becomes a clear solution of the magnesium acetylene derivative obtain.
Die Ausbeute an 'lagnesiumderivat ist ausgezeichnet, wie aus der Gesamtausbeute hervorgeht, die nian erhält, wenn man das @lagnesiumderivat, ohne dieses zu isolieren, mit einer Verbindung umsetzt, die zur Umsetzung mit ihm geeignet ist. Die für diese Kondensation verwendete Arbeitsweise ist die folgende: Man kühlt die Magnesiumderivatlö sung auf etwa O' C ab und versetzt nach und nach mit 0,8 Jlol des gewählten Reagenz, (las mit 100 ccm des gleichen Lösungsmittels oder eines anderen Lösungsmittels, beispielsweise Äther, verdünnt ist. Dann läßt man über Nacht stehen, zersetzt und arbeitet wie üblich auf.The yield of the magnesium derivative is excellent, as can be seen from the overall yield obtained when the magnesium derivative is reacted with a compound suitable for reaction with it without isolating it. The procedure used for this condensation is as follows: The magnesium derivative solution is cooled to about O 'C and 0.8 Jlol of the selected reagent is gradually added (read with 100 cc of the same solvent or another solvent, for example ether Then leave to stand overnight, decompose and work up as usual.
In den folgenden Tabellen sind die erhaltenen Ergebnisse zusammengestellt.
Für die angegebenen Umsetzungen der Grignardverbindungen wird kein Schutz beansprucht.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE1049861B true DE1049861B (en) | 1959-02-05 |
Family
ID=590413
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT1049861D Pending DE1049861B (en) | Process for the preparation of acetylene grignard compounds |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1049861B (en) |
-
0
- DE DENDAT1049861D patent/DE1049861B/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SAREL et al. | Organic carbonates. IV. 1a, b, c factors affecting formation of homologous cyclic carbonates | |
DE2659908A1 (en) | POLYGLYCOL ETHER | |
DE2540210B2 (en) | Process for the preparation of organotin trihalides and organotin stabilizers derived therefrom | |
DE2616528C2 (en) | Process for the preparation of 1,1,1-trihalo-4-methylpentenes | |
DE2149159A1 (en) | Trimethylhydroquinone prepn - from 2,6,6-trimethyl-2-cyclohexene-1,4- | |
DE3908791A1 (en) | METHOD FOR PRODUCING SILICON ORGANIC COMPOUNDS | |
DE1049861B (en) | Process for the preparation of acetylene grignard compounds | |
DE1004179B (en) | Process for the production of halogen-containing organoaluminum compounds | |
DE1966165C3 (en) | Process for the preparation of acetylenic alcohols. Eliminated from: 1904918 | |
DE2627985C3 (en) | 4-homoisotwistane-3-carboxylic acid ester and process for their preparation | |
Paciorek et al. | Mechanism of Amine Crosslinking of Fluoroelastomers. II. Model Compound Syntheses and Studies1, 2 | |
DE1234212B (en) | Process for the preparation of cyclobutane pellets | |
DE2758884C3 (en) | Process for the reaction of organosilicon compounds with anhydrides of polybasic inorganic or organic acids | |
DE1218453B (en) | Process for the preparation of 5,5'-dialkyl-10,10'-spiro-bis-phenaza compounds | |
DE1156807B (en) | Process for the preparation of cyclic tin alkylene compounds | |
DE2039728B2 (en) | PROCESS FOR THE PREPARATION OF ALKENYLALCOXYSILANES | |
AT235855B (en) | Process for the preparation of organometallic compounds | |
DE2143991B2 (en) | 2,6-dimethyl-2,6-undecadien-10on-l-al and its acetals | |
DE2824841B2 (en) | Process for the production of 2-cyclopentenone derivatives and perfume compositions containing them | |
AT166220B (en) | Process for the preparation of new acetals from compounds with two carbonyl groups | |
DE2006965C (en) | Process for the preparation of organo-H-chlorosilanes | |
AT233540B (en) | Process for the preparation of allene esters | |
DE953079C (en) | Process for the preparation of monomeric organosubstituted stannane derivatives | |
DE2858264C2 (en) | Intermediates for the manufacture of insecticidal halogenated esters and processes for their manufacture | |
DE1179949B (en) | Process for the preparation of 3- [furyl- (2)] propionic acid esters |