The asymmetric epoxidation of olefins is a very important organic transformation since the resulting enantiomerically pure epoxides are highly useful intermedia
Its well known that the complexing ability between crown ethers and cations is in relationship with the interior cavity of the crown ethers.1 In this work,a mon
Metal-based drugs possess a long and successful history in cancer treatment,starting in 1978 with the worldwide approval of cis-platin [1],and then metallic ant
Hydrazine is widely used as an important industrial material in chemical,pharmaceutical,and agricultural areas due to its vital roles.It is well-known as high-e