tert-Butylethylmalonat
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- CAS-Nr.
- 32864-38-3
- Bezeichnung:
- tert-Butylethylmalonat
- Englisch Name:
- TERT-BUTYL ETHYL MALONATE
- Synonyma:
- Maloni;TERT-BUTYL ETHYL MAL;T-BUTYL ETHYL MALONATE;t-Butyl ethyl nalonate;TERT-BUTYL ETHYL MALOTE;tert-Buty ethyl malonate;TERT-BUTYL ETHYL MALONATE;ETHYL TERT-BUTYL MALONATE;Tert- butyl Ethyl Malonoate;1-tert-Butyl 3-ethyl malonate
- CBNumber:
- CB0267409
- Summenformel:
- C9H16O4
- Molgewicht:
- 188.22
- MOL-Datei:
- 32864-38-3.mol
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tert-Butylethylmalonat Eigenschaften
- Siedepunkt:
- 83-85 °C/8 mmHg (lit.)
- Dichte
- 0.994 g/mL at 25 °C (lit.)
- Brechungsindex
- n20/D 1.416(lit.)
- Flammpunkt:
- 189 °F
- storage temp.
- Inert atmosphere,Room Temperature
- pka
- 11.86±0.46(Predicted)
- Aggregatzustand
- clear liquid
- Farbe
- Colorless to Almost colorless
- Wasserl?slichkeit
- Miscible with most common solvents. Immiscible with water.
- BRN
- 1776681
- InChIKey
- OCOBFMZGRJOSOU-UHFFFAOYSA-N
- CAS Datenbank
- 32864-38-3(CAS DataBase Reference)
- NIST chemische Informationen
- tert-Butyl ethyl malonate(32864-38-3)
Sicherheit
- Risiko- und Sicherheitserkl?rung
- Gefahreninformationscode (GHS)
| S-S?tze: |
23-24/25 |
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| RIDADR |
NA 1993 / PGIII |
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| WGK Germany |
3 |
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| HS Code |
29171900 |
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| Bildanzeige (GHS) |
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| Alarmwort |
Warnung |
| Gefahrenhinweise |
| Code |
Gefahrenhinweise |
Gefahrenklasse |
Abteilung |
Alarmwort |
Symbol |
P-Code |
| H227 |
Combustible liquid |
Flammable liquids |
Category 4 |
Warnung |
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P210, P280, P370+P378, P403+P235,P501 |
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| Sicherheit |
| P210 |
Von Hitze, hei?en Oberfl?chen, Funken, offenen Flammen und anderen Zündquellenarten fernhalten. Nicht rauchen. |
| P280 |
Schutzhandschuhe/Schutzkleidung/Augenschutz tragen. |
| P370+P378 |
Bei Brand: zum L?schen verwenden. |
| P403+P235 |
An einem gut belüfteten Ort aufbewahren. Kühl halten. |
| P501 |
Inhalt/Beh?lter ... (Entsorgungsvorschriften vom Hersteller anzugeben) zuführen. |
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tert-Butylethylmalonat Chemische Eigenschaften,Einsatz,Produktion Methoden
S-S?tze Betriebsanweisung:
S23:Gas/Rauch/Dampf/Aerosol nicht einatmen(geeignete Bezeichnung(en) vom Hersteller anzugeben).
S24/25:Berührung mit den Augen und der Haut vermeiden.
Chemische Eigenschaften
Clear colorless liquid
Verwenden
tert-Butyl ethyl malonate is used in the preparation of polar ester-functionalized aliphatic polysulfone. It is also a useful reagent for organic synthesis.
l?uterung methode
A likely impurity is monoethyl malonate; check IR for OH bands at 3330 br cm-1 . To ca 50g of ester add ice cold NaOH (50g in 200mL of H2O and 200g of ice). Swirl a few times (filter off ice if necessary), place it in a separating funnel and extract with 2 x 75mL of Et2O. Dry the extract (MgSO4) (since traces of acid decompose the t-Bu group of the ester, the distillation flask has to be washed with aqueous NaOH, rinsed with H2O and allowed to dry). Addition of some K2CO3 or MgO before distilling is recommended to inhibit decomposition. Distil it under reduced pressure through a 10cm Vigreux column (p 11). Decomposition is evidenced by severe foaming due to autocatalytic decomposition and cannot be prevented from accelerating except by stopping the distillation and rewashing the distillation flask with alkali again. [Breslow et al. J Am Chem Soc 66 1287 1944, Hauser et al. J Am Chem Soc 64 2714 1942, Strube Org Synth Coll Vol IV 417 1963, Stube Org Synth 37 35 1957, Beilstein 2 IV 1884.]
tert-Butylethylmalonat Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
tert-Butylethylmalonat Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.
Global( 247)Lieferanten
32864-38-3(tert-Butylethylmalonat)Verwandte Suche:
- ETHYL TERT-BUTYL MALONATE
- Malonic acid 1-ethyl 3-tert-butyl ester
- Malonic acid 1-tert-butyl 3-ethyl ester
- 1-tert-Butyl 3-ethyl malonate
- Propanedioic acid, 1,1-dimethylethyl ethyl ester
- TERT-BUTYL ETHYL MALONATE
- T-BUTYL ETHYL MALONATE
- Malonic acid tert-butyl ethyl ester
- TERT-BUTYL ETHYL MAL
- Tert- butyl Ethyl Malonoate
- Propanedioic acid, 1-(1,1-diMethylethyl) 3-ethyl ester
- Monoethyl tert-butyl Malonate
- t-Butyl ethyl nalonate
- tert-Butyl ethyl malonate
- TERT-BUTYL ETHYL MALOTE
- tert-Buty ethyl malonate
- propanedioic acid O3-tert-butyl ester O1-ethyl ester
- 1-tert-butyl 3-ethyl propanedioate
- tert-Butyl ethyl propanedioate
- 3-O-tert-butyl 1-O-ethyl propanedioate
- Maloni
- tert-Butyl Ethyl Malonate >
- TERT-BUTYL ETHYL MALONATE 32864-38-3
- 1-(1,1-Dimethylethyl) 3-ethyl propanedioate
- Ethyl 2-methyl-2-propanyl malonate
- 32864-38-3
- 32684-38-3
- CH33CO2CCH2CO2C2H5
- Esters
- Organic Building Blocks
- Building Blocks
- C8 to C9
- Carbonyl Compounds
- C8 to C9
- Carbonyl Compounds
- Esters
