Cr-waste free catalytic carbonyl addition reactions with polymer-immobilized CrF2

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A monomeric [Cr(pyridine)4F2]+Br- is immobilized onto the dipyridyl-TentaGel resin. Allylations of aldehydes with 5-10 mol % of the CrF2-dipyridyl-TentaGel resin 2/Mn/TMSCl in THF provide the corresponding homoallylic alcohols in excellent yields after TMS-desilylations with a polymer-supported ammonium fluoride 3. The recovered CrF2-dipyridyl-TentaGel resins can be utilized multiple times without a decrease of reactivity.

Original languageEnglish (US)
Pages (from-to)3395-3399
Number of pages5
JournalTetrahedron Letters
Volume47
Issue number20
DOIs
StatePublished - May 15 2006
Externally publishedYes

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Addition reactions
Polymers
Allylation
Aldehydes
Alcohols
Tentagel resin

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

Cite this

Cr-waste free catalytic carbonyl addition reactions with polymer-immobilized CrF2 . / Kurosu, Michio.

In: Tetrahedron Letters, Vol. 47, No. 20, 15.05.2006, p. 3395-3399.

Research output: Contribution to journalArticle

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abstract = "A monomeric [Cr(pyridine)4F2]+Br- is immobilized onto the dipyridyl-TentaGel resin. Allylations of aldehydes with 5-10 mol {\%} of the CrF2-dipyridyl-TentaGel resin 2/Mn/TMSCl in THF provide the corresponding homoallylic alcohols in excellent yields after TMS-desilylations with a polymer-supported ammonium fluoride 3. The recovered CrF2-dipyridyl-TentaGel resins can be utilized multiple times without a decrease of reactivity.",
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