In marked contrast to Michael reactions, oxa-Michael reactions have not been used as
standard transformations in organic synthesis until quite recently. This was mainly due to a …

This article reviews the applications of cinchona alkaloids as asymmetric catalysts. In the last
few years, characterized by the resurgence of interest in asymmetric organocatalysis …

Desymmetrization of cyclohexadienones via enantioselective oxo-Michael reaction
catalyzed by chiral phosphoric acid to afford highly enantioenriched 1, 4-dioxane and …

The biosynthesis of the meroterpenoid guajadial was previously hypothesized to occur via a
hetero-Diels− Alder reaction between caryophyllene and an o-quinone methide. This …

Chagas' disease, a parasitic infection widely distributed throughout Latin America, is a major
public health problem with devastating consequences in terms of human morbidity and …

An unprecedented strategy for the synthesis of enantioenriched 1-substituted 1, 3-
dihydroisobenzofurans via an enantioselective oxa-Michael reaction of o-alkoxyboronate …

A gram‐scale synthesis of psiguadial B, a purported inhibitor of human hepatoma cell
growth, has been achieved in one step by a biomimetic three‐component coupling of …

We have developed highly enantioselective, copper-catalyzed alkynylations of
benzopyranyl acetals. By using a copper (I) catalyst equipped with a chiral bis (oxazoline) …

A catalytic asymmetric ring-opening reaction of cyclopropyl ketones with β-naphthols has
been accomplished. In the presence of a chiral N, N′-dioxide/scandium (III) complex, a …

Seven racemic 5, 7-dimethoxyflavanones afforded conglomerate crystals upon
recrystallization from a solvent. Three methodologies were investigated to achieve …