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amberlyst(r) a21 free base (c15-1301-015)

Amberlyst(R) A21 free base (C15-1301-015)

Sigma-Aldrich

Catalog No.
C15-1301-015
Manufacturer No.
216410-250G
Manufacturer Name
Sigma-Aldrich
Quantity
250
Unit of Measure
GR
Price: $267.86
List Price: $297.62

Amberlyst A21 is a neutral ion-exchange resin and a solid base which catalyses three-component reaction of aldehyde and malononitrile with various active methylene compounds to synthesize a range of pyran annulated heterocycles. Use of the solid

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General description

Amberlyst A21 is a neutral ion-exchange resin and a solid base which catalyses three-component reaction of aldehyde and malononitrile with various active methylene compounds to synthesize a range of pyran annulated heterocycles. Use of the solid base is to generate a highly green protocol by eliminating chromatographic purification involving hazardous organic solvents, and for easy recovery and reusability of the catalyst. Amberlyst A21 is used as a fluid bed resin. Fluid bed reactor allows gel-type beads, of polymer-supported (PS) organic reactions, to be used in a flow system. The Michael reaction between methyl 1-oxoindan-2-carboxylate and methyl vinyl ketone in toluene can be attained through a fluid bed of Amberlyst A21 at 50°C.

Application

Amberlyst® A21 free base was used in catalyst preparation.

Features and Benefits

Weakly basic, macroreticular resin with alkyl amine functionality.

Legal Information

Amberlyst is a registered trademark of The Dow Chemical Company or an affiliated company of Dow

UPC:
51373407
Condition:
New
Weight:
1.00 Ounces
HazmatClass:
No
WeightUOM:
LB
MPN:
216410-250G


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