A new poly brominated dibenzylphenol named as rhodomevoidin was isolated from Rhodomela confervoides. Its structrue was elucidated as 3-bromo-4, 5-bis (2, 3-dib
The tricyclic compound 1, a key intermediate of the pentacyclic core of Et 743 and itsanalogues, was synthesized. Its 11-epimer was found as the product of race
Mesoporous aluminosilicate with cubic ordered structure was synthesized by two-stepcrystallization, which showed stronger acid sites and more effective activity
UV-vis and luminescence spectroscopic titration experiments show that a novel Ru(Ⅱ) complex exhibits off-on-off pH luminescent switching with a maximum on-off r