Stereoisomerization of α-hydroxy-β-sulfenyl-α,β-dimethyl naphthoquinones controlled by nonbonded sulfur–oxygen interactions
作者:Antonio Latorre、Santiago Rodríguez、Amit Jain、Florenci V. González、José A. Mata
DOI:10.1016/j.tet.2013.01.033
日期:2013.3
The anti α-hydroxy-β-sulfenyl-α,β-dimethyl naphthoquinones isomerize in basic media into syn/anti mixtures of isomers, giving the synisomer as the major product. Conversely, anti α-hydroxy-β-alkoxy-α,β-dimethyl naphthoquinones isomerize to furnish the antiisomer as the major product. The crystal structure of syn α-hydroxy-β-phenylsulfenyl-α,β-dimethyl naphthoquinone has been determined. The X-ray
Photochemistry of epoxyquinones. 2. Photoinduced cycloaddition reactions of aryl- or alkyl-substituted 2,3-epoxy-2,3-dihydro-1,4-naphthoquinones with olefins