2,3,4,5-Tetramethyl-2-cyclopentenone CAS NO 54458-61-6 96%

Quick Detail:

Description:

> Formula: C9H14O

> Weight: 138.2069

> Appearance: Colorless to light yellow liquid

> MP:100 ºC /30 mmHg

>Storage: Preserve in a well-closed container and keep in cool, dry place

> HS:2914299000

> Safety  Description:S23-S24/25

1. Applications:

2,3,4,5-Tetramethyl-2-cyclopentenone was generally used in the synthesis of chiral pre-ligands, such as (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.

2. Location

 A. biology/biochemistry laboratory, pharmaceutical factory

3．Note

2,3,4,5-Tetramethyl-2-cyclopentenone should be kept under -20℃ and kept away from light.

Synonyms:

2,3,4,5-TETRAMETHYL-2-CYCLOPENTEN-1-ONE;2,3,4,5-TETRAMETHYL-2-CYCLOPENTENONE;2,3,4,5-TETRAMETHYLCYCLOPENT-2-ENONE;2,3,4,5-tetramethyl-2-cyclopentanone (cis+trans);2,3,4,5-Tetramethyl-2-cyclopentenone (mixture of cis- and trans- isomers),;2,3,4,5-TETRAMETHYL-2-CYCLOPENTENONE, 95 %, MIXTURE OF CIS AND TRANS;2,3,4,5-tetramethyl-2-cyclopentenone, cis + trans;2,3,4,5-tetramethyl-2-cyclopentenone, mixture of cis and trans;2,3,4,5-Tetramethyl-2-cyclopentenone; 2,3,4,5-tetramethylcyclopent-2-en-1-one; (4S,5R)-2,3,4,5-tetramethylcyclopent-2-en-1-one; (4R,5R)-2,3,4,5-tetramethylcyclopent-2-en-1-one; (4S,5S)-2,3,4,5-tetramethylcyclopent-2-en-1-one; (4R,5S)-2,3,4,5-tetramethylcyclopent-2-en-1-one

Related categories:C9;Carbonyl Compounds;Ketones

Specifications

The determination of KF

Use MA-1 intelligent Carle Fischer moisture tester to measure water content

Determination of melting point

   Instrument:

   Micro melting point apparatus WRS-2A, Melting point tubes

  Determination of step:

Open switch, stable 20min.

First set the starting temperature than the melting point of the low 10 ℃, heating rate 2 ℃ / min.

The sample was grind as fine as possible and load in a clean, dry melting point pipe ,until the sample was compressed into about 1cm high .When the actual temperature reaches the set temperature and stabilized . Inserted into the capillary with the sample, the simultaneous determination of three.