371475

2,2-Dimethylcyclopentanone

96%

• Formule linéaire : (CH₃)₂C₅H₆(=O)
• CAS Number: 4541-32-6
• Poids moléculaire : 112.17
• Numéro MDL: MFCD00049164
• Code UNSPSC : 12352100
• ID de substance PubChem : 24863111
• Nomenclature NACRES : NA.22

Propriétés

• Niveau de qualité: 200
• Essai: 96%
• Indice de réfraction: n20/D 1.433 (lit.)
• pb: 143-145 °C (lit.)
• Densité: 0.894 g/mL at 25 °C (lit.)
• Groupe fonctionnel: ketone
• Chaîne SMILES: CC1(C)CCCC1=O
• InChI: 1S/C7H12O/c1-7(2)5-3-4-6(7)8/h3-5H2,1-2H3
• Clé InChI: FTGZMZBYOHMEPS-UHFFFAOYSA-N

Description

Description générale

2,2-Dimethylcyclopentanone is a ketone. Synthesis of various C-2 substituted vitamin D derivatives with a 2,2-dimethylcyclopentanone unit in side chains has been reported. Regioselective synthesis of 2,2-dimethylcyclopentanone, via its enolate precursor regioselectively obtained using the 2-pyrrolidone magnesium salt, has been reported.

Application

2,2-Dimethylcyclopentanone enolate may be used as starting reagent in the enantioselective synthesis of chiral phosphines belonging to the P-aryl-2-phosphabicyclo[3.3.0]octane family (PBO). It may be used in the synthesis of:

• 2,6,6-trimethyl-2-azaspiro[4.4]nonane-1,3-dione, a spirosuccinimide moiety of asperparaline A
• novel spiropentanopyrrolizidine oxime alkaloids, namely 2′,3′,5′,6′,7′,7a′-hexahydro-2,2-dimethylspirocyclopentane-1
• δ,δ-dimethyl-δ-valerolactone, via Baeyer-Villiger oxidation

Informations sur la sécurité

• Pictogrammes: GHS02
• Mention d'avertissement: Warning
• Mentions de danger: H226
• Classification des risques: Flam. Liq. 3
• Code de la classe de stockage: 3 - Flammable liquids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): 91.4 °F - closed cup
• Point d'éclair (°C): 33 °C - closed cup
• Équipement de protection individuelle: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter