Timeline for Can geometrical isomers be enantiomers?
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| Jun 3, 2020 at 19:02 | comment | added | user55119 | You and others may be interested in these corrections to the Blue Book 2013. I haven't checked to see if they have been implemented. qmul.ac.uk/sbcs/iupac/bibliog/BBerrors.html . Here is paper about revised CIP rules by Bob Hanson (JSmol). pubs.acs.org/action/showCitFormats?doi=10.1021/acs.jcim.8b00324 | |
| Jun 3, 2020 at 16:32 | comment | added | orthocresol | @user55119 in general, many software packages do not fully implement the IUPAC recommendations (after all the book is ~1500 pages long (!!)). ChemDraw, as good as it is for drawing structures, is one of them. To me, not using E/Z makes sense, because E/Z is kind of in the domain of diastereomers (for example, we wouldn't use E/Z for allene enantiomers). That said, I think the whole thing is arguably more of a technicality than a real conceptual issue. Everybody including OP seems to be agreeing on the actual concepts. | |
| Jun 3, 2020 at 14:50 | comment | added | user55119 | After reading your view, I created the structures using JSMol and the double bonds are labeled in lower case e/z, presumably to reflect your point. However, ChemDraw uses the upper case E/Z designation. | |
| Jun 3, 2020 at 4:37 | history | answered | orthocresol | CC BY-SA 4.0 |