supported by the National Natural Science Foundation of China (20625206);the National Basic Research Program of China (2008CB617501,2009ZX09501-018),and the Chinese Academy of Sciences
Efficient synthesis and resolution of a series of meta-substituted inherently chiral aminocalix[4]arene derivatives have been described. Consequently,the meta-nitro,bromo and chloro substituted inherently chiral calix...
supported by the National Natural Science Foundation of China (20421202, 20632060 and 20702052);the Ministry of Science and Technology of China (2008CB617501 and 2009ZX09501-018) and the Chinese Academy of Sciences.
Simple pyrrolidine-azole conjugates have been synthesized and found to be efficient catalysts for asymmetric Michael addition to nitrostyrenes. The identified optimal catalysts, pyrrolidine-azoles 2, 8 and 13, could c...