Chemical cascades in water for the synthesis of functionalized aromatics from furfurals?

Green Chemistry Pub Date: 2016-01-07 DOI: 10.1039/C5GC02935J

Abstract

One-pot synthetic routes from furfurals to polysubstituted aromatic compounds have been developed in water, without the need for any organic solvents. The reaction proceeds via an uncatalysed, one-pot reaction cascade through formation of a hydrazone derivative, in situ cycloaddition with a dienophile, then aromatisation. A range of substituted phthalimides can be accessed with complete control over the substitution pattern. The reaction was also extended to other dienophiles and the diene 2-furylacrolein. The phthalimide products were further elaborated to produce a variety of polysubstituted benzenes including pharmaceutically relevant compounds.

Graphical abstract: Chemical cascades in water for the synthesis of functionalized aromatics from furfurals
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