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Reaction with 2,6-bis(bromomethyl)pyridines gives symmetrical A,D-bridged diethers. With pyridine-2,6-dicarbonyl chloride, the unsymmetrical A,C-bridged diester is produced. These molecules are concave bases with possible enzyme-like properties: Angew. Chem. Int. Ed., 34, 2555 (1995)./n
For monographs and reviews on calixarenes, see 4-tert-Butylcalixarene, B21515./n
Gefahrenhinweise (EU): H315-H319-H335
Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves and eye/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.