Benzene derivatives having
para positions (or
meta) bridged by a chain (commonly 10 to 12 atoms long) (Latin
ansa, handle). By extension, any arene bridged by a chain constrained to lie over one of the two faces of the arene.
A00374.png
See: cyclophanes
Source:
PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1318 (https://doi.org/10.1351/pac199567081307)