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  5. 111004599

MilliporeSigma™ Supelco™ Amberlyst™ A21, Free Base

Catalog No. 111004599
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250 g

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.
TRUSTED_SUSTAINABILITY

Specifications

Packaging Poly Bottle
Quantity 250 g
Product Line Amberlyst
Capacity (Metric) 1.3 meq/mL by wetted bed volume
MDL Number MFCD00145842

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

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