Advanced search
Start date
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

An asymmetric substrate-controlled Morita-Baylis-Hillman reaction as approach for the synthesis of pyrrolizidinones and pyrrolizidines

Full text
Luna-Freire, Kristerson R. [1] ; Scaramal, Joao Paulo S. [1] ; Resende, Jackson A. L. C. [2] ; Tormena, Claudio F. [3] ; Oliveira, Fabio L. [4] ; Aparicio, Ricardo [4] ; Coelho, Fernando [1]
Total Authors: 7
[1] Univ Estadual Campinas, Inst Chem, Lab Synth Nat Prod & Drugs, BR-13083970 Campinas, SP - Brazil
[2] Inst Quim UFF, Xray Diffract Lab, Niteroi, RJ - Brazil
[3] Univ Estadual Campinas, Inst Chem, Lab Phys Organ Chem, BR-13083970 Campinas, SP - Brazil
[4] Univ Estadual Campinas, Inst Chem, Lab Struct Biol & Crystallog, BR-13083970 Campinas, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: Tetrahedron; v. 70, n. 20, p. 3319-3326, MAY 20 2014.
Web of Science Citations: 5

We describe herein an approach to the total synthesis of functionalized pyrrolizidinones and pyrrolizidines. The synthetic sequence is based on a highly stereoselective substrate-controlled Morita-Baylis-Hillman (MBH) reaction between a chiral amino-aldehyde and methyl acrylate. The selectivity attained in this reaction was controlled by the presence of a hydroxyl group adequately placed in the structure of the amino-aldehyde used as the nucleophilic component of the MBH reaction. The MBH adducts were used as substrate for an efficient total synthesis of pyrrolizidinones and pyrrolizidines in good overall yield. (C) 2013 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 09/51602-5 - Chemical biology: new natural and synthetic molecular targets against cancer, structural studies, biological evaluation and mode of action
Grantee:Ronaldo Aloise Pilli
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 11/20033-5 - Synthesis of heterocycles using Morita-Baylis-Hillman adducts
Grantee:Fernando Antonio Santos Coelho
Support Opportunities: Regular Research Grants