Multiple Cycloadditive Macrocyclization: An Efficient Method for Crown Ether-Type Cyclophanes, Bis-Calix[4]arenes and Silamacrocycles
Byeang Hyean Kim*, Eun Jeong Jeong, Gil Tae Hwang, Natarajan Venkatesan National Research Laboratory, Department of Chemistry, Center for Integrated Molecular Systems, Division of Molecular Life Science, Pohang University of Science and Technology, Pohang, 790-784, Korea Fax: +82(54)2793399; e-Mail: bhkim@postech.ac.kr;