274658

2,3,4,5-Tetramethyl-2-cyclopentenone, mixture of cis and trans

95%

• Synonym(s): 2,3,4,5-Tetramethyl-2-cyclopenten-1-one, 2,3,4,5-Tetramethylcyclopenten-1-one, 2,3,4,5-Tetramethylcyclopentenone, Tetramethylcyclopent-2-enone
• Empirical Formula (Hill Notation): C₉H₁₄O
• CAS Number: 54458-61-6
• Molecular Weight: 138.21
• Beilstein/REAXYS Number: 2324088
• MDL number: MFCD00010248
• UNSPSC Code: 12352100
• PubChem Substance ID: 24856595
• NACRES: NA.22

Properties

• assay: 95%
• form: liquid
• refractive index: n20/D 1.476 (lit.)
• bp: 100 °C/30 mmHg (lit.)
• density: 0.917 g/mL at 25 °C (lit.)
• functional group: ketone
• SMILES string: CC1C(C)C(=O)C(C)=C1C
• InChI: 1S/C9H14O/c1-5-6(2)8(4)9(10)7(5)3/h5,7H,1-4H3
• InChI key: ARUAYSANQMCCEN-UHFFFAOYSA-N

Description

Application

2,3,4,5-Tetramethyl-2-cyclopentenone was used in the synthesis of chiral pre-ligands, (R)-3,3′-bis(tetramethylcyclopentadienyl)-2,2′-bismethoxy-1,1′-bisnaphthalene and (R)-3-tetramethylcyclopentadienyl-2,2′-bismethoxy-1,1′-bisnaphthalene by reacting with (R)-3,3′-dilithium-2,2′-bismethoxy-1,1′-bisnaphthalene.

Safety Information

• Storage Class: 10 - Combustible liquids
• wgk_germany: WGK 3
• flash_point_f: 163.4 °F - closed cup
• flash_point_c: 73 °C - closed cup
• ppe: Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)