Fully substituted derivatives of this compound can be synthesized by dehydrating the product of the pyradine-catalyzed reaction of an alpha-halogen carbonyl with a beta-dicarbonyl. An unexpected property of this molecule results from the delocalization of one of the lone pairs on its electronegative component. The most useful derivative of this compound is formed by catalytic reduction over palladium; use of that derivative often allows organo-metallic reactions to take place with lower-valency metals, for example a Reformatsky reaction on copper-two salts. This five-membered organic heterocycle has one oxygen, four carbons, and eight pairs of bonding electrons and is therefore (*) aromatic. This chemical is synthesized in the oxygen Paal-Knorr synthesis and the Feist-Benary synthesis. For 10 points, name this chemical that has a derivati
Fully substituted derivatives of this compound can be synthesized by dehydrating the product of the pyradine-catalyzed reaction of an alpha-halogen carbonyl with a beta-dicarbonyl. An unexpected property of this molecule results from the delocalization of one of the lone pairs on its electronegative component. The most useful derivative of this compound is formed by catalytic reduction over palladium; use of that derivative often allows organo-metallic reactions to take place with lower-valency metals, for example a Reformatsky reaction on copper-two salts. This five-membered organic heterocycle has one oxygen, four carbons, and eight pairs of bonding electrons and is therefore (*) aromatic. This chemical is synthesized in the oxygen Paal-Knorr synthesis and the Feist-Benary synthesis. For 10 points, name this chemical that has a derivative with four added hydrogens that is a widely used mild organic solvent.
Fully substituted derivatives of this compound can be synthesized by dehydrating the product of the pyradine-catalyzed reaction of an alpha-halogen carbonyl with a beta-dicarbonyl.
{furan} [accept on {t}etra{h}ydro{f}uran or other furan derivatives until “eight pairs”; prompt on permutations of {H4C4O} or the forumlae of other furan derivatives]