A New Valuable Synthesis of Polyfunctionalized Furans Starting from β-Nitroenones and Active Methylene Compounds.

A New Valuable Synthesis of Polyfunctionalized Furans Starting from β-Nitroenones and Active Methylene Compounds.

Molecules (Basel, Switzerland) (2019-12-19)

Elena Chiurchiù, Serena Gabrielli, Roberto Ballini, Alessandro Palmieri

RESUMEN

Highly functionalized furans are the key scaffolds of many pharmaceuticals and bioactive natural products. Herein, we disclose a new fruitful synthesis of polyfunctionalized furans starting from β-nitroenones and α-functionalized ketones. The protocol involves two steps promoted by solid supported species, and it provides the title targets from satisfactory to very good overall yields and in an excellent diastereomeric ratios.

MATERIALES

Referencia del producto

Marca

Descripción del producto

39410

Sigma-Aldrich

4-(Dimethylamino)pyridine, polymer-bound, extent of labeling: ~3.0 mmol/g "DMAP" loading, matrix crosslinked with 2% DVB

20026

Sigma-Aldrich

2-tert-Butylimino-2-diethylamino-1,3-dimethyl-perhydro-1,3,2-diazaphosphorine on polystyrene, extent of labeling: ~2.2 mmol/g base loading

47060

Sigma-Aldrich

Fluoride on polymer support, extent of labeling: ~3.0 mmol/g F^- loading