The synthesis and structure-activity relationships of a series of threo-1-(aryloxy)-3-(alkylamino)butan-2-ols are discussed. These compounds are less potent beta-adrenoreceptor antagonists than the corresponding 1-(aryloxy)-3-(alkylamino)propan-2-ols. The data presented indicate that, unlike the arylethanolamine series, substitution of an alkyl group on the carbon atom alpha to the amino function on
Green photochemistry: solarchemical synthesis of 5-amido-1,4-naphthoquinones
作者:Elodie Haggiage、Emma E. Coyle、Kieran Joyce、Michael Oelgemöller
DOI:10.1039/b816676e
日期:——
Dye sensitized photooxygenations of 5-amido-1-naphthols were investigated with artificial light and sunlight, and the corresponding 5-amido-1,4-naphthoquinones were isolated in moderate to excellent yields. Under sunny conditions the yields were higher for almost all cases studied. The energy demand of the equipment used was determined, revealing significant energy savings for solar exposures.