Can someone shed some light on how this brilliant statement:
Rule 3. When two ligands differ
*only in that one has an atomor atom-group of higher rank in a cis-position
and theother in a trans-position to the core of the stereogenicunit, *then
preference is given to the former.
[Mata, Lobo, et al., J. Chem. Inf. Comput. Sci. 1994, 34, 491-504]
Got turned into this monster?
Rule 3: ... seqcis = 'Z' precedes seqtrans = 'E'.
In other words, rather than being able to assign priority by the very
clever method of just following the path, one has to actually assign all
the priorities of the double bonds first (from scratch, presumably, not the
currently working process) *then *continue.
Or, maybe what I am saying is, they were so close and yet didn't see that
it could have been so so simple. But no....
[I suppose the writer of this rule is on this list, right?....]
Bob
--
Robert M. Hanson
Larson-Anderson Professor of Chemistry
St. Olaf College
Northfield, MN
http://www.stolaf.edu/people/hansonr
If nature does not answer first what we want,
it is better to take what answer we get.
-- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________
Blueobelisk-discuss mailing list
Blueobelisk-discuss@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/blueobelisk-discuss
