Abstract
1,3-Dipolar cycloadditions of upper- and lower-rim diallylcalix[4]arenes (1 and 3) with aryl dinitrile oxides provide a unique and efficient way of capping the calix[4]arenes. When dinitrile oxides reacted with 5-allylcalix[4]arene 7, they underwent a 1,3-dipolar cycloaddition on one side and an electrophilic substitution on the other side, which led to a novel type of asymmetric calix[4]arenes (9 and 12).
Original language | English |
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Pages (from-to) | 8383-8386 |
Number of pages | 4 |
Journal | Tetrahedron Letters |
Volume | 47 |
Issue number | 47 |
DOIs | |
State | Published - 20 Nov 2006 |
Keywords
- 1,3-Dipolar cycloaddition
- Asymmetric calix[4]arenes
- Electrophilic substitution
- Isoxazolines