Hi Greg,

Greg wrote:
> yeah. Here's an even shorter illustration of correct behavior:
>
> In [11]: mol2 = Chem.MolFromSmiles(r'C\C=C\CB(O)O')
>
> In [12]: ps = rxn.RunReactants((mol1, mol2))
>
> In [13]: Chem.MolToSmiles(ps[0][0], True)
> Out[13]: 'C/C=C/Cc1ccccc1'

Yes, this was the first example that I went for as well - but then
chemically I didn't like the idea of using allyl boronic acids in Suzuki
reactions - because I couldn't recollect ever trying this, and if they
did couple I would be worried about double-bond migrations; ironically
making the question of stereochemistry rather mute!  So my medchemist
conscience won-out over clarity - and I concocted an example that I
would happily test with 'wet' experiment! :-)

>> Having got to the end of explaining that, I am thinking that the way
I
>> should handle this is to check for 'problem' reactants and pass to a
more
>> specific rSMARTS when required!
>
> I don't think that will help. Unfortunately the problem is in the way
> stereochemical information is handled in the reaction code. My gut
> feeling is that this is not going to be a quick one to fix, but I will
> take a look.

Thanks for looking into it!

Kind regards

James

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