MDLnumberMFCD00145842
Popular Documents: SpecificationSheet(PDF) | RAMANFTIR(PDF)
Properties:
| RelatedCategories | Amberlite,AmberliteWeakAnionExchangers,Analytical/Chromatography,Anion,AnionExchangeMedia, |
| vapordensity | <1(vsair) |
| vaporpressure | 17mmHg(20°C) |
| autoignitiontemp. | 800 °F |
| moisture | 56-62% |
| matrix | styrenedivinylbenzene(macroporous) |
| particlesize | 22-30 mesh |
| 490-690 μm |
Description:
FeaturesandBenefits
Weaklybasic,macroreticularresinwithalkylaminefunctionality.
Packaging
1kginpolybottle
5,250ginpolybottle
Application
Amberlyst®A21freebasewasusedincatalystpreparation.
Generaldescription
AmberlystA21isaneutralion-exchangeresinandasolidbasewhichcatalysesthree-componentreactionofaldehydeandmalononitrilewithvariousactivemethylenecompoundstosynthesizearangeofpyranannulatedheterocycles.Useofthesolidbaseistogenerateahighlygreenprotocolbyeliminatingchromatographicpurificationinvolvinghazardousorganicsolvents,andforeasyrecoveryandreusABIlityofthecatalyst.AmberlystA21isusedasafluidbedresin.Fluidbedreactorallowsgel-typebeads,ofpolymer-supported(PS)organicreactions,tobeusedinaflowsystem.TheMichaelreactionbetweenmethyl1-oxoindan-2-carboxylateandmethylvinylketoneintoluenecanbeattainedthroughafluidbedofAmberlystA21at50°C.
LegalInformation
AmberlystisaregisteredtrademarkofTheDowChemicalCompanyoranaffiliatedcompanyofDow
