Eco-friendly heterogeneous solid acids as novel and recyclable catalysts in ionic medium for tetrahydropyranols

Graphic A variety of aldehydes and homoallylic alcohols undergo smoothly Prins-cyclization on the surface of solid acids such as H-ZSM-5 zeolite or Amberlyst-15 ® ion-exchange resin in 1-butyl-3-methylimidazolium hexafluorophosphate ionic liquid to afford the corresponding tetrahydropyranols in high...

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Published inJournal of molecular catalysis. A, Chemical Vol. 210; no. 1; pp. 99 - 103
Main Authors Yadav, J.S, Reddy, B.V.S, Reddy, M.Sridhar, Niranjan, N
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 01.03.2004
Elsevier
Subjects
Catalysis
Catalytic reactions
Chemistry
Exact sciences and technology
General and physical chemistry
Homoallyl alcohols
Solid acids
Tetrahydropyranols
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Tetrahydropyranols
Solid acids
Homoallyl alcohols
Catalytic reaction
Iminium compounds
Catalyst selectivity
Pyran derivatives
Alcohol
Hexafluophosphates
Zeolite
Aldehyde
Oxygen heterocycle
Allylic compound
Molecular sieve
Heterogeneous catalysis
Cyclization
Prins reaction
Ion exchange resin
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Summary:Graphic A variety of aldehydes and homoallylic alcohols undergo smoothly Prins-cyclization on the surface of solid acids such as H-ZSM-5 zeolite or Amberlyst-15 ® ion-exchange resin in 1-butyl-3-methylimidazolium hexafluorophosphate ionic liquid to afford the corresponding tetrahydropyranols in high yields with cis-diastereoselectivity. The recovered ionic liquid containing solid acid was recycled in subsequent runs without loss of activity.
ISSN:1381-1169
1873-314X
DOI:10.1016/j.molcata.2003.08.024