A method for quantitative evaluating the enhancement ofthe rate of Type Ⅱ photosensitized oxidation by D<sub>2</sub>O was suggested.The effect of substrate con
Three methods for synthesis of benzotellurazole crown ether(6)aredescribed.The cyanine dye(8)can be easily obtained by treating(6)with CH<sub>3</sub>I and CH(OEt)<sub>3
Two new coumarins,4’-hydroxycolumbianetin named angelidiol(A)and 6-[(?)(R),2(S)-3-trihydroxy-3-methylbutyl]-7-methoxycoumarin named angelitriol(B),wereisolated