pro-E, pro-Z

https://doi.org/10.1351/goldbook.P04867
One of a pair of identical groups c attached to a double bond (as in abC=Cc2) is described as pro-E if, when it is arbitrarily assigned @C01082@ over the other group c, the @S05976@ of the molecule becomes E. The other group c is then described as pro-Z.
Source:
PAC, 1996, 68, 2193. (Basic terminology of stereochemistry (IUPAC Recommendations 1996)) on page 2214 [Terms] [Paper]
Citation: 'pro-E, pro-Z' in IUPAC Compendium of Chemical Terminology, 3rd ed. International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. https://doi.org/10.1351/goldbook.P04867 RIS BibTex EndNote
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Last revised: February 24, 2014