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Title: Supported and Unsupported Chiral Squaramides as Organocatalysts for Stereoselective Michael Additions: Synthesis of Enantiopure Chromenes and Spirochromanes
Authors: Andrés García, José María
Losada, Jorge
Maestro Fernández, Alicia
Rodríguez-Ferrer, Patricia
Pedrosa Sáez, Rafael
Issue Date: 2017
Publisher: American Chemical Society
Description: Producción Científica
Citation: Journal of Organic Chemistry, 2017, Volume 82, Issue16, Pages 8444-8454
Abstract: Novel supported chiral bifunctional squaramides have been easily prepared starting from diamines derived from natural amino acids and commercially available aminoalkyl polystyrene resins. These squaramides behave as excellent stereoselective recoverable organocatalysts in different Michael additions, in neat conditions at room temperature. The reaction on 2-(2-nitrovinyl) phenol as electrophile lead, in excellent yields and enantioselectivities, to intermediates that can be easily transformed into 4H-chromenes, and spirochromanones.
Keywords: Catálisis
Química orgánica
ISSN: 0022-3263
Peer Review: SI
DOI: 10.1021/acs.joc.7b01177
Sponsor: Ministerio de Economía, Industria y Competitividad - FEDER (Proyect CTQ2014-59870-P)
Publisher Version:
Language: eng
Rights: info:eu-repo/semantics/openAccess
Appears in Collections:CINQUIMA - Artículos de revista
DEP67 - Artículos de revista

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