ring reversal (ring inversion)

https://doi.org/10.1351/goldbook.R05397
The interconversion by rotation about single bonds (coupled with @A00346@ deformation in the @T06468@) of cyclic conformers having equivalent ring shapes (e.g. @C00965@ → @C00965@) though not necessarily equivalent spatial positions of substituents (e.g. @E02174@ → @A00546@).
Source:
PAC, 1996, 68, 2193. (Basic terminology of stereochemistry (IUPAC Recommendations 1996)) on page 2217 [Terms] [Paper]