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CEROUS CHLORIDE ANHYDROUS

 

 

Product Name

 

 

 

Cerous chloride anhydrous [CAS 7790-86-5]

 

Other Chemical Name

 

Cerium(III) chloride, Cerium trichloride

 

 

Molecular Formula

 

 

CeCl3

 

Molecular Weight

 

246.5

 

 

Moisture content

 

 

Not more than 1.5 % w/w by KF

 

Uses & Reactivity

 

Cerium(III) chloride can be used as a starting point for the preparation of other cerium salts, such as the Lewis acid, cerium (III) trifluoromethanesulfonate, used for Friedel-Crafts acylations. It is also used itself as a Lewis acid, for example as a catalyst in Friedel-Crafts alkylation reactions.

 

Luche reduction of alpha, beta-unsaturated carbonyl compounds has become a popular method in organic synthesis, where CeCl3.7H2O is used in conjunction with sodium borohydride. For example carvone gives only the allylic alcohol 1 and none of the saturated alcohol 2. Without CeCl3, a mixture of 1 and 2 is formed.

 

 

 

Luche reduction

 

 

Organic synthesis is for alkylation of ketones which would otherwise form enolates if simple organo lithium reagents were to be used. For example, compound 3 would be expected to simply form an enolate without CeCl3 being present, but in the presence of CeCl3 smooth alkylation occurs:

 

CeCl3 directed alkylation reaction

 

 

Cerium (III) chloride heptahydrate CeCl3 · H2O catalyzes enamination of β-dicarbonyl compounds with primary amines in aqueous medium at room temperature to afford the corresponding β-enamino ketones with high chemoselectivity.

 

 

Storage

 

Store in a well – closed, container, Protected from moisture.

 

 

Packaging

 

 

25 Kg in HDPE Drum with LDPE Liner

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