Now showing items 1-3 of 3
A comparative study on the 1,3-dipolar cycloadditions of diazomethane and bis(diisopropylamino)phosphinodiazomethane to chiral electron-deficient olefins: Reactivity and diastereoselectivity
(Pergamon-Elsevier Science Ltd, 2002-11)
The 1,3-dipolar cycloadditions of bis(diisopropylamino)phosphinodiazomethane, 10, to chiral electron-deficient olefins have been investigated for the first time. The results have been compared with those corresponding to ...
Ent-kaurane derivatives from the root cortex of yacon and other three Smallanthus species (Heliantheae, Asteraceae)
(Pergamon-Elsevier Science Ltd, 2010)