Anatoly Fedorov

4 Questions 7 Answers 0 Followers

Questions related from Anatoly Fedorov

What the configuration (R/S) does the chiral center at C8 have in the molecule?

I'm struggling to assign a stereodescriptor for the C8 position of the molecule. Both ChemDraw and ACDlabs give me 8R as a result. But if we draw the simplified hierarchial diagraph according to...

06 April 2024 1,928 5 View

Is there any free software to calculate theoretical CD-spectra of low-molecular compounds?

I need to calculate theoretical CD-spectra of a few organic compounds. I never dealt with CD-spectroscopy nor I have any experience with theorethial calculations. Still I hope that there is a...

17 April 2023 4,599 2 View

Have anyone seen this reaction before? How to classify it (cycloaddition/Michael addition-condensation/some name reaction I'm not aware of)?

I discovered unusual behavior of one natural compound, that appeared to react with itself under sodium tert-butylate conditions. Expected alpha-ketol rearrangement product wasn't observed in the...

17 May 2022 653 2 View

Unusual epimerization example

My attention has been taken over by the molecule of one fungi toxin. It exists as a mixture of epimers. And even after you separate this diastereomeric mixture both compounds turn into a mixture...

01 January 1970 3,931 4 View