Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
45
pubmed:dateCreated
2002-11-6
pubmed:abstractText
The first examples of efficient catalytic asymmetric conjugate addition (ACA) of alkylzincs to trisubstituted cyclic enones is disclosed. These Cu-catalyzed reactions proceed efficiently with five- and seven-membered ring substrates to afford the desired products in >/=95% ee. Intermediate enolates can be trapped with alkyl halides to generate a quaternary stereogenic center. The requisite chiral ligand is prepared from commercially available materials and can be used in situ without further purification in the presence of commercial grade (CuOTf)2.PhMe.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0002-7863
pubmed:author
pubmed:issnType
Print
pubmed:day
13
pubmed:volume
124
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
13362-3
pubmed:dateRevised
2008-1-17
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Efficient cu-catalyzed asymmetric conjugate additions of alkylzincs to trisubstituted cyclic enones.
pubmed:affiliation
Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.