The first total synthesis of(-)-3-oxoeudesma-1,4,11(13)-trien-7αH-12-oic acid1 has been described.The key step is one-pot reaction involving dehydrogenation an
Low-valent titanium reagent prepared in situ from TiCl<sub>4</sub> and Zn was employed to induce the intramolecular coupling of nitro group with carbonyl group
The copper(Ⅰ) catalyzed coupling reaction of substituted propargyl tosylate with propargyl alcohol proceeds smoothly at room temperature to give 2,5-diynyl alc