Reduction of diaryldiselenides by the system of Cp2TiCl2/BuiMgBr/THF gave the nucleophilic arylselenium complex. They reacted with diaryl iodonium salts to affo
Two new O-terpenoidal coumarins named excavacoumarin A (2), B (3), and a known one 1 were isolated from the leaves of Clausena excavata Burm. f. (Rutaceae) coll