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Catalytic enantioselective synthesis of quaternary all-carbon stereogenic centers. Preparation of alpha,alpha'-disubstituted beta,gamma-unsaturated esters through Cu-catalyzed asymmetric allylic alkylations.
Org Lett. 2005 Mar 31; 7(7):1255-8.OL

Abstract

[reaction: see text] Peptide-based chiral ligands, readily prepared from commercially available materials, are used to promote Cu-catalyzed asymmetric allylic alkylations of alpha,beta-unsaturated esters bearing a gamma-phosphate with various alkylzinc reagents. These transformations lead to the formation of alpha,alpha'-dialkyl-beta,gamma-unsaturated esters in high yields as well as high regio- (re) and enantioselectivities (ee).

Authors+Show Affiliations

Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, USA.No affiliation info available

Pub Type(s)

Journal Article
Research Support, N.I.H., Extramural
Research Support, U.S. Gov't, P.H.S.

Language

eng

PubMed ID

15787480

Citation

Murphy, Kerry E., and Amir H. Hoveyda. "Catalytic Enantioselective Synthesis of Quaternary All-carbon Stereogenic Centers. Preparation of Alpha,alpha'-disubstituted Beta,gamma-unsaturated Esters Through Cu-catalyzed Asymmetric Allylic Alkylations." Organic Letters, vol. 7, no. 7, 2005, pp. 1255-8.
Murphy KE, Hoveyda AH. Catalytic enantioselective synthesis of quaternary all-carbon stereogenic centers. Preparation of alpha,alpha'-disubstituted beta,gamma-unsaturated esters through Cu-catalyzed asymmetric allylic alkylations. Org Lett. 2005;7(7):1255-8.
Murphy, K. E., & Hoveyda, A. H. (2005). Catalytic enantioselective synthesis of quaternary all-carbon stereogenic centers. Preparation of alpha,alpha'-disubstituted beta,gamma-unsaturated esters through Cu-catalyzed asymmetric allylic alkylations. Organic Letters, 7(7), 1255-8.
Murphy KE, Hoveyda AH. Catalytic Enantioselective Synthesis of Quaternary All-carbon Stereogenic Centers. Preparation of Alpha,alpha'-disubstituted Beta,gamma-unsaturated Esters Through Cu-catalyzed Asymmetric Allylic Alkylations. Org Lett. 2005 Mar 31;7(7):1255-8. PubMed PMID: 15787480.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Catalytic enantioselective synthesis of quaternary all-carbon stereogenic centers. Preparation of alpha,alpha'-disubstituted beta,gamma-unsaturated esters through Cu-catalyzed asymmetric allylic alkylations. AU - Murphy,Kerry E, AU - Hoveyda,Amir H, PY - 2005/3/25/pubmed PY - 2006/1/13/medline PY - 2005/3/25/entrez SP - 1255 EP - 8 JF - Organic letters JO - Org Lett VL - 7 IS - 7 N2 - [reaction: see text] Peptide-based chiral ligands, readily prepared from commercially available materials, are used to promote Cu-catalyzed asymmetric allylic alkylations of alpha,beta-unsaturated esters bearing a gamma-phosphate with various alkylzinc reagents. These transformations lead to the formation of alpha,alpha'-dialkyl-beta,gamma-unsaturated esters in high yields as well as high regio- (re) and enantioselectivities (ee). SN - 1523-7060 UR - https://www.unboundmedicine.com/medline/citation/15787480/Catalytic_enantioselective_synthesis_of_quaternary_all_carbon_stereogenic_centers__Preparation_of_alphaalpha'_disubstituted_betagamma_unsaturated_esters_through_Cu_catalyzed_asymmetric_allylic_alkylations_ DB - PRIME DP - Unbound Medicine ER -