1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE
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- CAS-Nr.
- 3205-94-5
- Englisch Name:
- 1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE
- Synonyma:
- 5,6-Dihydro-1H-cyclopenta[c]furan-1,3(4H)-dione;Cyclopentane-1,2-dicarboxylic anhydride;NSC 291644;1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE;1H，3H，4H，5H，6H-Cyclopenta[c]furan-1,3-dione;5,6-dihydro-4H-cyclopenta[c]furan-1,3-dione;Cyclopentene-1,2-dicarboxylic acid anhydride;1-Cyclopentene-1,2-dicarboxylic anhydride 96%;5,6-dihydro-4H-cyclopenta[c]furan-1,3-quinone;1H-Cyclopenta[c]furan-1,3(4H)-dione, 5,6-dihydro-
- CBNumber:
- CB2204873
- Summenformel:
- C7H6O3
- Molgewicht:
- 138.12
- MOL-Datei:
- 3205-94-5.mol
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1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE Eigenschaften
- Schmelzpunkt:
- 42-45 °C (lit.)
- Siedepunkt:
- 133-135 °C/10 mmHg (lit.)
- Dichte
- 1.2667 (rough estimate)
- Brechungsindex
- n20/D 1.4978(lit.)
- Flammpunkt:
- >230 °F
- storage temp.
- under inert gas (nitrogen or Argon) at 2-8°C
- BRN
- 123650
1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE Chemische Eigenschaften,Einsatz,Produktion Methoden
R-Sätze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Verwenden
Valuable Diels-Alder dienophile, for example, in approach to the bicycloundecane system in taxanes.
läuterung methode
If IR has OH peaks, then some hydrolysis to the diacid (m 178o) must have occurred. In this case reflux it with an appropriate volume of Ac2O for 30minutes, evaporate the Ac2O and distil it in vacuo. The distillate solidifies and can be recrystallised from EtOAc/hexane (1:1). The diacid distils without decomposition due to formation of the anhydride. The dimethyl ester has m 120-125o/11mm. [Askain Chem Ber 98 2322 1965, Beilstein 17/11 V 125.]
1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
Global( 44)Lieferanten
3205-94-5()Verwandte Suche:
- 1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE
- Cyclopentene-1,2-dicarboxylic acid anhydride
- 4,5,6,6a-Tetrahydro-1H-cyclopenta[c]furan-1,3(3aH)-dione
- 5,6-dihydro-4H-cyclopenta[c]furan-1,3-dione
- 5,6-dihydro-4H-cyclopenta[c]furan-1,3-quinone
- NSC 291644
- 1-Cyclopentene-1,2-dicarboxylic anhydride 96%
- 1H，3H，4H，5H，6H-Cyclopenta[c]furan-1,3-dione
- 1-CYCLOPENTENE-1,2-DICARBOXYLIC ANHYDRIDE ISO 9001：2015 REACH
- 1H-Cyclopenta[c]furan-1,3(4H)-dione, 5,6-dihydro-
- 5,6-Dihydro-1H-cyclopenta[c]furan-1,3(4H)-dione
- Cyclopentane-1,2-dicarboxylic anhydride
- 3205-94-5
- Carboxylic Acid Anhydrides
- Carbonyl Compounds
- Building Blocks
- Organic Building Blocks
- Carbonyl Compounds
- Carboxylic Acid Anhydrides
- Organic Building Blocks
- Building Blocks
- Carbonyl Compounds
- Carboxylic Acid Anhydrides
- Chemical Synthesis
- Organic Building Blocks
