6533b831fe1ef96bd129863b

RESEARCH PRODUCT

The construction of quaternary stereocenters by the Henry reaction: circumventing the usual reactivity of substituted glyoxals.

Victor Hernandez‐olmosGonzalo BlayJosé R. Pedro

subject

chemistry.chemical_classificationKetoneNucleophilic additionNitroaldol reactionNitromethaneOrganic ChemistryEnantioselective synthesisGeneral ChemistryCatalysisStereocenterchemistry.chemical_compoundchemistryOrganic chemistryReactivity (chemistry)Alkyl

description

The enantioselective Henry reaction between alkyl- and arylglyoxal hydrates and nitromethane catalyzed by Cu(II)-iminopyridine complexes takes place regioselectively on the ketone carbonyl group to give chiral tertiary nitroaldols with high functional group density and enantiomeric excesses of up to 96 %. Both aromatic and aliphatic glyoxals are suitable substrates for this reaction.

10.1002/chem.201002888https://pubmed.ncbi.nlm.nih.gov/21344519