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.